824 S Central Expressway, Suite 100
Anna, TX 75409
903-482-4900

Local Reviews
for mckinney, tx

Rated 4.9 out of 5 stars based on 19 customer reviews

Great experience, start to finish qui

Quick response, friendly and professional. Didn't feel rushed or pressured. I would use this company again and will recommend them to everyone I know.

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Great work!

Very thorough, professional and clearly explained. Highly recommended.

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Friendly, respectful, honest, on time, and professional

Adon was a wonderful company to work with. They were quick, helped to explain things, took their time to figure out the problem, and gave their honest opinions on what options we had to fix the problem. I would recommend them to anyone.

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Best Service all around!

Jesse came out to check our AC unit and went out of his way on short notice. He has excellent customer service and extremely professional in his work. He is experienced and knowledgeable. I would highly recommend this company and trust them in my home. I know I’ll be calling them anytime I have any AC or heating concerns.

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Mr. Crimson was extremely professional, knowledgeable, thorough, and prompt. His customer relations skills should be commended. Thanks for the great s

Same as above with the addition that he be used to train new employees.

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Amazing experience

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Excellent in all aspects!!!

This was amazingly easy start to finish. Adon was up front in pricing, available quickly and worked with our schedule. The service team arrived on time, and was so thorough & clean, they did exactly what they came to do and went the extra mile making sure everything was exactly as it should be! We would highly recommend them!

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Air duct cleaning

Adon Complete did an amazing job. From start to finish the staff was very professional and respectful of the home, taking extra care to ensure the inside of the home remained clean during the process. I’ve used Adon for other HVAC related services and they are the best in the industry.

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Friendly, prompt service. Will recommend!

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Best service!

I've never used the same AC repair company more than once until Adon.

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Great Service

Absolutely the best. The entire staff is friendly, professional, helpful, knowledgeable and very affordable. Excellent service from the office to the technicians.

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good except did not point out the filter was a "slim" 20x25x4. got wrong one at Lowes.

Friendly and informative. Clarence did a good job for us.

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Great Service

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Great

He is by far the best professional who has ever completed any work in all the homes I've ever lived in

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Professional, great service

Alex was very professional and knowledgeable about the AC unit. Service was fast and prompt! Definitely will use Adon again

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Job Locations
for mckinney, tx

Shelby S.

Shelby S. Job Checkin

Upon arrival, I found the unit tripped on a roll out. After further investigation, I noticed that the burner log was not lined up quietly right. I adjusted and corrected the noticed issue. I watched the unit for a while before calling it good. System is heating upon departure.

Upon arrival, I found the unit tripped on a roll out. After further investigation, I noticed that the burner log was not lined up quietly right. I adjusted and corrected the noticed issue. I watched the unit for a while before calling it good. System is heating upon departure. Upon arrival, I found the unit tripped on a roll out. After further investigation, I noticed that the burner log was not lined up quietly right. I adjusted and corrected the noticed issue. I watched the unit for a while before calling it good. System is heating upon departure.

Jesse V.

Jesse V. Job Checkin

Reset the unit due to a power surge. System heating upon departure.


Shelby S.

Shelby S. Job Checkin

December 3rd, 2025 I returned to install the control board and blower motor. I tested both system after installation and they are both fully functional and heating. I proposed adding surge protection to all units. I emailed the videos, pictures, and invoice. The left downstairs system’s control board is burnt up and not passing voltage. The right down stairs system is having a blower motor issue. When in a call for heat the blower motor does not engage resulting in the high temperature limit switch to become tripped.

December 3rd, 2025
I returned to install the control board and blower motor. I tested both system after installation and they are both fully functional and heating. I proposed adding surge protection to all units. I emailed the videos, pictures, and invoice.


The left downstairs system’s control board is burnt up and not passing voltage. 

The right down stairs system is having a blower motor issue. When in a call for heat the blower motor does not engage resulting in the high temperature limit switch to become tripped. December 3rd, 2025
I returned to install the control board and blower motor. I tested both system after installation and they are both fully functional and heating. I proposed adding surge protection to all units. I emailed the videos, pictures, and invoice.


The left downstairs system’s control board is burnt up and not passing voltage. 

The right down stairs system is having a blower motor issue. When in a call for heat the blower motor does not engage resulting in the high temperature limit switch to become tripped.

Jesse V.

Jesse V. Job Checkin

Preformed single system heat maintenance on a 2016 heat pump. I tested all electrical components on the air handler inside. I pulled the filter to check cleanliness and noticed it was hard to remove and very snug. Tempture being supplied to the home was at 100 and 70 being returned to the unit. I proceeded outside where I tested all electrical components and start and run amps for the compressor. I found that the capacitor and Contactor were testing lower than manufacturer specifications. Also the compressor was starting high on amps. Over 100 amps. I also noticed the u it didn’t have any surge protection as well. I provided estimates to the clients, they are going to talk it over and figure out what they would like to do.

Preformed single system heat maintenance on a 2016 heat pump. I tested all electrical components on the air handler inside. I pulled the filter to check cleanliness and noticed it was hard to remove and very snug. Tempture being supplied to the home was at 100 and 70 being returned to the unit. I proceeded outside where I tested all electrical components and start and run amps for the compressor. I found that the capacitor and Contactor were testing lower than manufacturer specifications. Also the compressor was starting high on amps. Over 100 amps. I also noticed the u it didn’t have any surge protection as well. I provided estimates to the clients, they are going to talk it over and figure out what they would like to do. Preformed single system heat maintenance on a 2016 heat pump. I tested all electrical components on the air handler inside. I pulled the filter to check cleanliness and noticed it was hard to remove and very snug. Tempture being supplied to the home was at 100 and 70 being returned to the unit. I proceeded outside where I tested all electrical components and start and run amps for the compressor. I found that the capacitor and Contactor were testing lower than manufacturer specifications. Also the compressor was starting high on amps. Over 100 amps. I also noticed the u it didn’t have any surge protection as well. I provided estimates to the clients, they are going to talk it over and figure out what they would like to do.

Shelby S.

Shelby S. Job Checkin

Upon arrival, I found that the left downstairs unit is receiving power for low voltage and high voltage. There are no lights on lighting up on the board. I just R to W and the system is not doing anything. There is a burn spot present on the board. The downstairs right system was in a limit lock out. I reset the lock out to find the blower is not coming on. I checked my 24v for the speed and my 120v for the motor. The motor is receiving all voltage necessary to operate but is not coming on. The blower motor is on order in Dallas at Carrier and the control board is on order at Century Supply. I emailed the payment link for dispatch and repair work.

Upon arrival, I found that the left downstairs unit is receiving power for low voltage and high voltage. There are no lights on lighting up on the board. I just R to W and the system is not doing anything. There is a burn spot present on the board. 

The downstairs right system was in a limit lock out. I reset the lock out to find the blower is not coming on. I checked my 24v for the speed and my 120v for the motor. The motor is receiving all voltage necessary to operate but is not coming on. 

The blower motor is on order in Dallas at Carrier and the control board is on order at Century Supply. 

I emailed the payment link for dispatch and repair work. Upon arrival, I found that the left downstairs unit is receiving power for low voltage and high voltage. There are no lights on lighting up on the board. I just R to W and the system is not doing anything. There is a burn spot present on the board. 

The downstairs right system was in a limit lock out. I reset the lock out to find the blower is not coming on. I checked my 24v for the speed and my 120v for the motor. The motor is receiving all voltage necessary to operate but is not coming on. 

The blower motor is on order in Dallas at Carrier and the control board is on order at Century Supply. 

I emailed the payment link for dispatch and repair work.

Matthew C.

Matthew C. Job Checkin

Upon arrival client was having trouble with their current thermostat with it resetting itself after so many hours. I explained that it was running on a schedule. The client stated they haven’t ever set a schedule on it and would like to just replace the thermostat. I replaced the thermostat with a T6 pro. Unit was heating upon departure.

Upon arrival client was having trouble with their current thermostat with it resetting itself after so many hours. I explained that it was running on a schedule. The client stated they haven’t ever set a schedule on it and would like to just replace the thermostat. 

I replaced the thermostat with a T6 pro. Unit was heating upon departure. Upon arrival client was having trouble with their current thermostat with it resetting itself after so many hours. I explained that it was running on a schedule. The client stated they haven’t ever set a schedule on it and would like to just replace the thermostat. 

I replaced the thermostat with a T6 pro. Unit was heating upon departure.

Brayden W.

Brayden W. Job Checkin

Arrived on site for no heat on existing system where only the thermostat was replaced on Saturday. Began system inspection by inspecting all wire connections, and found no issues. Proceeded to test unit heating in test mode. Heating worked without issue in stage one and stage two. i’ve been tested heating organically outside of test mode and noticed unit began a cooling cycle tested Y1 and Y2 two to common and found 24 V while I measured nothing on W1W2. This leads me to believe it is an issue with the thermostat. I then proceeded to review the thermostats programming and found it set up for 2 heat 2 cool gas. Contacted train tech-support and was advised to do a factory reset on the thermostat. Upon conducting the factory reset and reprogramming, the furnace began to heat without issue. Conducted multiple heat cycles and allowed it to run for a while to ensure no safety or sensors tripped. I’ve been proceeded withthe QC on the new system we installed. Came out today for QC visit on ne

Arrived on site for no heat on existing system where only the thermostat was replaced on Saturday. Began system inspection by inspecting all wire connections, and found no issues. Proceeded to test unit heating in test mode. Heating worked without issue in stage one and stage two. i’ve been tested heating organically outside of test mode and noticed unit began a cooling cycle tested Y1 and Y2 two to common and found 24 V while I measured nothing on W1W2. This leads me to believe it is an issue with the thermostat. I then proceeded to review the thermostats programming and found it set up for 2 heat 2 cool gas.  Contacted train tech-support and was advised to do a factory reset on the thermostat. Upon conducting the factory reset and reprogramming, the furnace began to heat without issue. Conducted multiple heat cycles and allowed it to run for a while to ensure no safety or sensors tripped. I’ve been proceeded withthe QC on the new system we installed. Came out today for QC visit on ne Arrived on site for no heat on existing system where only the thermostat was replaced on Saturday. Began system inspection by inspecting all wire connections, and found no issues. Proceeded to test unit heating in test mode. Heating worked without issue in stage one and stage two. i’ve been tested heating organically outside of test mode and noticed unit began a cooling cycle tested Y1 and Y2 two to common and found 24 V while I measured nothing on W1W2. This leads me to believe it is an issue with the thermostat. I then proceeded to review the thermostats programming and found it set up for 2 heat 2 cool gas.  Contacted train tech-support and was advised to do a factory reset on the thermostat. Upon conducting the factory reset and reprogramming, the furnace began to heat without issue. Conducted multiple heat cycles and allowed it to run for a while to ensure no safety or sensors tripped. I’ve been proceeded withthe QC on the new system we installed. Came out today for QC visit on ne

Shelby S.

Shelby S. Job Checkin

I performed a heating maintenance on 2 gas systems. I checked amps, capacitors, filters, electrical, cleanliness, and safeties. Customer and I spoke about allergens and decided airscrubbers would be a good fit for the home. The outdoor units currently have surge protection and the indoor units do not. The flue pipe on the downstairs system is currently not designed properly and could lead to dangerous situations by not allowing the combustion gases to escape properly. The sediment trap on the downstairs system is not designed properly and not removing sediment/moisture out of the gas.

I performed a heating maintenance on 2 gas systems. I checked amps, capacitors, filters, electrical, cleanliness, and safeties. Customer and I spoke about allergens and decided airscrubbers would be a good fit for the home. The outdoor units currently have surge protection and the indoor units do not. The flue pipe on the downstairs system is currently not designed properly and could lead to dangerous situations by not allowing the combustion gases to escape properly. The sediment trap on the downstairs system is not designed properly and not removing sediment/moisture out of the gas. I performed a heating maintenance on 2 gas systems. I checked amps, capacitors, filters, electrical, cleanliness, and safeties. Customer and I spoke about allergens and decided airscrubbers would be a good fit for the home. The outdoor units currently have surge protection and the indoor units do not. The flue pipe on the downstairs system is currently not designed properly and could lead to dangerous situations by not allowing the combustion gases to escape properly. The sediment trap on the downstairs system is not designed properly and not removing sediment/moisture out of the gas.

Matthew C.

Matthew C. Job Checkin

Preformed single system maintenance on a 2022 heat pump. I tested all electrical components inside and checked the heat strips as well. All electrical components and heat strips tested within manufacturer specifications. I changed the filter for the client 20x25x4. I did notice the client did not have a float switch to shut off the unit in case of a clog or a blow out valve to help better assist in removing a clog. I then proceeded outside to check all electrical components and start amps for the compressor. I found that all electrical components tested within manufacturer specifications, but the amps at start up were over 100 amps rated manufacturer limit is 104 amps on start up. I presented all findings to the client. Client elected to have hard start kit, float switch and blow out valve installed. Showed before and after pictures of work completed and showed the start amps of the compressor went from over 100 amps down to 45 amps. Client was also interested in having an estimate lef

Preformed single system maintenance on a 2022 heat pump. I tested all electrical components inside and checked the heat strips as well. All electrical components and heat strips tested within manufacturer specifications. I changed the filter for the client 20x25x4. I did notice the client did not have a float switch to shut off the unit in case of a clog or a blow out valve to help better assist in removing a clog. I then proceeded outside to check all electrical components and start amps for the compressor. I found that all electrical components tested within manufacturer specifications, but the amps at start up were over 100 amps rated manufacturer limit is 104 amps on start up. I presented all findings to the client. Client elected to have hard start kit, float switch and blow out valve installed. Showed before and after pictures of work completed and showed the start amps of the compressor went from over 100 amps down to 45 amps. Client was also interested in having an estimate lef Preformed single system maintenance on a 2022 heat pump. I tested all electrical components inside and checked the heat strips as well. All electrical components and heat strips tested within manufacturer specifications. I changed the filter for the client 20x25x4. I did notice the client did not have a float switch to shut off the unit in case of a clog or a blow out valve to help better assist in removing a clog. I then proceeded outside to check all electrical components and start amps for the compressor. I found that all electrical components tested within manufacturer specifications, but the amps at start up were over 100 amps rated manufacturer limit is 104 amps on start up. I presented all findings to the client. Client elected to have hard start kit, float switch and blow out valve installed. Showed before and after pictures of work completed and showed the start amps of the compressor went from over 100 amps down to 45 amps. Client was also interested in having an estimate lef

Matthew C.

Matthew C. Job Checkin

Preformed no cool diagnostic. I found that the system has a bad blower motor, also found that the unit is extremely dusty. Offered blower motor replacement and duct cleaning, also considering the age of the unit it is right at 10 years old they elected to have a comfort advisor visit be conducted. They would also like to think about the other repairs. Unit is turned off in the attic space.

Preformed no cool diagnostic. I found that the system has a bad blower motor, also found that the unit is extremely dusty. Offered blower motor replacement and duct cleaning, also considering the age of the unit it is right at 10 years old they elected to have a comfort advisor visit be conducted. They would also like to think about the other repairs. Unit is turned off in the attic space. Preformed no cool diagnostic. I found that the system has a bad blower motor, also found that the unit is extremely dusty. Offered blower motor replacement and duct cleaning, also considering the age of the unit it is right at 10 years old they elected to have a comfort advisor visit be conducted. They would also like to think about the other repairs. Unit is turned off in the attic space.

Brayden W.

Brayden W. Job Checkin

Arrived on site, for no heat. Homeowner has been in the home for two years. Homeowner stated blower motor was running Hear the gas running. I began by setting the downstairs thermostat to heat. Upon reviewing the furnace, I found it was not calling for heat on the zone board. I tested the heat directly from the zone board and the furnace completed the heat cycle without issue. I then tested heat on the upstairs thermostat and it also completed the heating cycle without issue. I then wired R and W together on the downstairs thermostat and found that the heating cycle completed without issue leading me to believe that the thermostat is not sending a signal for heating. Advise homeowner upstairs heat is working at this time and provided estimates for thermostat replacement and possible warranty. Homeowner elected to try to replace the thermostat himself and

Arrived on site, for no heat. Homeowner has been in the home for two years. Homeowner stated blower motor was running Hear the gas running. I began by setting the downstairs thermostat to heat. Upon reviewing the furnace, I found it was not calling for heat on the zone board. I tested the heat directly from the zone board and the furnace completed the heat cycle without issue. I then tested heat on the upstairs thermostat and it also completed the heating cycle without issue. I then wired R and W together on the downstairs thermostat and found that the heating cycle completed without issue leading me to believe that the thermostat is not sending a signal for heating. Advise homeowner upstairs heat is working at this time and provided estimates for thermostat replacement and possible warranty. Homeowner elected to try to replace the thermostat himself and Arrived on site, for no heat. Homeowner has been in the home for two years. Homeowner stated blower motor was running Hear the gas running. I began by setting the downstairs thermostat to heat. Upon reviewing the furnace, I found it was not calling for heat on the zone board. I tested the heat directly from the zone board and the furnace completed the heat cycle without issue. I then tested heat on the upstairs thermostat and it also completed the heating cycle without issue. I then wired R and W together on the downstairs thermostat and found that the heating cycle completed without issue leading me to believe that the thermostat is not sending a signal for heating. Advise homeowner upstairs heat is working at this time and provided estimates for thermostat replacement and possible warranty. Homeowner elected to try to replace the thermostat himself and

Brayden W.

Brayden W. Job Checkin

Arrived on site for heating maintenance on 2021 train furnace. Homeowner stated all was well with regards to normal unit operation. Proceeded with heating maintenance as scheduled. 1. Visually inspected condenser coil for debris/ dirty. 2. Inspected condenser fan motor. 3. Inspected condenser fan blades. 4. Inspected/ cleaned wiring connections. 5. Tested for gas leaks 6. Tested functionality and cleaned flame sensor 7. Tested functionality and cleaned pressure switches and ports 8. Inspected / replaced return filter. 9. Inspected return plenum for debris/ dirty. 10. Inspected evaporator coil. 11. Tested functionality and visually inspected surface igniter 12. Checked blower amp draw. 13. Measured temperature differential from supply to return. 20 degrees measured. Noticed suction line sensor error on the thermostat. I cleaned the sensor and reset the system and the error was still present. I reset the system later on and the error went away. Advised homeowner to monitor for this error

Arrived on site for heating maintenance on 2021 train furnace. Homeowner stated all was well with regards to normal unit operation. Proceeded with heating maintenance as scheduled.
1. Visually inspected condenser coil for debris/ dirty.
2. Inspected condenser fan motor.
3. Inspected condenser fan blades.
4. Inspected/ cleaned wiring connections.
5. Tested for gas leaks
6. Tested functionality and cleaned flame sensor
7. Tested functionality and cleaned pressure switches and ports
8. Inspected / replaced return filter.
9. Inspected return plenum for debris/ dirty.
10. Inspected evaporator coil.
11. Tested functionality and visually inspected surface igniter
12. Checked blower amp draw.
13. Measured temperature differential from supply to return. 20 degrees measured.
Noticed suction line sensor error on the thermostat. I cleaned the sensor and reset the system and the error was still present. I reset the system later on and the error went away. Advised homeowner to monitor for this error Arrived on site for heating maintenance on 2021 train furnace. Homeowner stated all was well with regards to normal unit operation. Proceeded with heating maintenance as scheduled.
1. Visually inspected condenser coil for debris/ dirty.
2. Inspected condenser fan motor.
3. Inspected condenser fan blades.
4. Inspected/ cleaned wiring connections.
5. Tested for gas leaks
6. Tested functionality and cleaned flame sensor
7. Tested functionality and cleaned pressure switches and ports
8. Inspected / replaced return filter.
9. Inspected return plenum for debris/ dirty.
10. Inspected evaporator coil.
11. Tested functionality and visually inspected surface igniter
12. Checked blower amp draw.
13. Measured temperature differential from supply to return. 20 degrees measured.
Noticed suction line sensor error on the thermostat. I cleaned the sensor and reset the system and the error was still present. I reset the system later on and the error went away. Advised homeowner to monitor for this error

Brayden W.

Brayden W. Job Checkin

Arrived on site for heating maintenance on 2023 Trane furnace 4T. Homeowner stated all was well with normal system operation to her knowledge. Proceeded with heating maintenance as scheduled. Heatpump- heating 1. Visually inspected condenser coil for debris/ dirty. 2. Inspected condenser fan motor. 3. Inspected condenser fan blades. 4. Inspected/ cleaned wiring connections. 5. Tested for gas leaks 6. Tested functionality and cleaned flame sensor 7. Tested functionality and cleaned pressure switches and ports 8. Inspected / replaced return filter. 9. Inspected return plenum for debris/ dirty. 10. Inspected evaporator coil. 11. Tested functionality and visually inspected surface igniter 12. Checked blower amp draw. 13. Measured temperature differential from supply to return. 20 degrees measured. 15. Rinsed condenser unit to promote heat exchange All was well with normal system operation, however I did notice some evidence of condensation on the unit and found the minimum cfm per ton at

Arrived on site for heating maintenance on 2023 Trane furnace 4T. Homeowner stated all was well with normal system operation to her knowledge. Proceeded with heating maintenance as scheduled. 
Heatpump- heating
1. Visually inspected condenser coil for debris/ dirty.
2. Inspected condenser fan motor.
3. Inspected condenser fan blades.
4. Inspected/ cleaned wiring connections.
5. Tested for gas leaks
6. Tested functionality and cleaned flame sensor
7. Tested functionality and cleaned pressure switches and ports
8. Inspected / replaced return filter.
9. Inspected return plenum for debris/ dirty.
10. Inspected evaporator coil.
11. Tested functionality and visually inspected surface igniter
12. Checked blower amp draw.
13. Measured temperature differential from supply to return. 20 degrees measured.
15. Rinsed condenser unit to promote heat exchange
All was well with normal system operation, however I did notice some evidence of condensation on the unit and found the minimum cfm per ton at Arrived on site for heating maintenance on 2023 Trane furnace 4T. Homeowner stated all was well with normal system operation to her knowledge. Proceeded with heating maintenance as scheduled. 
Heatpump- heating
1. Visually inspected condenser coil for debris/ dirty.
2. Inspected condenser fan motor.
3. Inspected condenser fan blades.
4. Inspected/ cleaned wiring connections.
5. Tested for gas leaks
6. Tested functionality and cleaned flame sensor
7. Tested functionality and cleaned pressure switches and ports
8. Inspected / replaced return filter.
9. Inspected return plenum for debris/ dirty.
10. Inspected evaporator coil.
11. Tested functionality and visually inspected surface igniter
12. Checked blower amp draw.
13. Measured temperature differential from supply to return. 20 degrees measured.
15. Rinsed condenser unit to promote heat exchange
All was well with normal system operation, however I did notice some evidence of condensation on the unit and found the minimum cfm per ton at

Shelby S.

Shelby S. Job Checkin

We performed heating maintenance on 2 gas systems. Master bedroom - 2024 Main living - 2022 The main living unit is none communicating and the master unit is communicating. We checked amps, capacitors, cleanliness, electrical, and safeties. We noticed that the units have dust build up present in the duct work. This is likely due to the renovations that the customer has had done. The main living unit has a reasonable amount of dust build up on the wheel. This causes the motor to work harder to perform its normal duties. Also, we noticed that the surge protector on the furnace for the main living has went out. We provided pricing to replace the surge under parts warranty and cleaning of the system. The cleaning option includes a complementary replacement of the warranty surge protector.

We performed heating maintenance on 2 gas systems. 
Master bedroom - 2024 Main living - 2022
The main living unit is none communicating and the master unit is communicating.
We checked amps, capacitors, cleanliness, electrical, and safeties. We noticed that the units have dust build up present in the duct work. This is likely due to the renovations that the customer has had done. The main living unit has a reasonable amount of dust build up on the wheel. This causes the motor to work harder to perform its normal duties. Also, we noticed that the surge protector on the furnace for the main living has went out. We provided pricing to replace the surge under parts warranty and cleaning of the system. The cleaning option includes a complementary replacement of the warranty surge protector. We performed heating maintenance on 2 gas systems. 
Master bedroom - 2024 Main living - 2022
The main living unit is none communicating and the master unit is communicating.
We checked amps, capacitors, cleanliness, electrical, and safeties. We noticed that the units have dust build up present in the duct work. This is likely due to the renovations that the customer has had done. The main living unit has a reasonable amount of dust build up on the wheel. This causes the motor to work harder to perform its normal duties. Also, we noticed that the surge protector on the furnace for the main living has went out. We provided pricing to replace the surge under parts warranty and cleaning of the system. The cleaning option includes a complementary replacement of the warranty surge protector.

Matthew C.

Matthew C. Job Checkin

Upon arrival spoke with Brennan (GC) at cowboy construction. Brennan stated that he had the damper motor zone board replaced. After this replacement the homeowner stated that there was no heat being provided to the home. I began by going up into the attic where I found that the blower motor was constantly running even with the thermostats off. Which is indicating a high voltage short. I opened the blower compartment and tested for a short on the control board. As it was flashing indicating bad ground/reversed polarity. I found the short to be on the heat side of the control board. I presented findings to Brennan and homeowner. They went with replacement of the furnace control board. Unit was heating upon departure.

Upon arrival spoke with Brennan (GC) at cowboy construction. Brennan stated that he had the damper motor zone board replaced. After this replacement the homeowner stated that there was no heat being provided to the home. I began by going up into the attic where I found that the blower motor was constantly running even with the thermostats off. Which is indicating a high voltage short. I opened the blower compartment and tested for a short on the control board. As it was flashing indicating bad ground/reversed polarity. I found the short to be on the heat side of the control board. I presented findings to Brennan and homeowner. They went with replacement of the furnace control board. Unit was heating upon departure. Upon arrival spoke with Brennan (GC) at cowboy construction. Brennan stated that he had the damper motor zone board replaced. After this replacement the homeowner stated that there was no heat being provided to the home. I began by going up into the attic where I found that the blower motor was constantly running even with the thermostats off. Which is indicating a high voltage short. I opened the blower compartment and tested for a short on the control board. As it was flashing indicating bad ground/reversed polarity. I found the short to be on the heat side of the control board. I presented findings to Brennan and homeowner. They went with replacement of the furnace control board. Unit was heating upon departure.