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

Local Reviews

Rated 4.9 out of 5 stars based on 216 customer reviews

On time and very polite

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Excellent service

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Excellent service

Frank was awesome in explaining what was wrong and documented everything with pictures. He was not trying to sell me on everything little thing that could be done, But was helpful in explaining what really was broken and needed to be fixed soon or today. He was honest, respectful, kind and went out of his way to make the experience fantastic. I highly recommend him and his company. I was also extremely pleased and excited that the day I called I got someone out to fix the problem that day. That was impressive.

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Exceptional customer service

Am so appreciative of the quality of time and expertise that went into the installation. Beginning with my initial call that was answered on a Saturday night followed by a Sunday consultation and Wednesday installation, Everyone with Adon provided exceptional customer service. The owner is fully involved and truly wants to do a great job for the customer. Am also pleased to support a local business vs a behemoth company where only sales matter. Many thanks to everyone at Adon for their kindness, assistance, professionalism and quality of service.

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Excellent service

Painless transaction

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Great service

Would recommend him to anyone needing service.

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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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AC

Great guy

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Fantastic service, knowledgeable, personable , and professional

Frank was fantastic! He made sure we understood everything and answered all questions throughout the entire visit. He went above and beyond to ensure our units were serviced and that everything looked great.

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Great service always honest and dependable

A blessing to know a company that hires honest and dependable employees

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Great Service

Had a great experience today and received valuable information.

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Alex is amazing and super professional!!!

I couldn’t be happier with the service provided by Alex. They were willing to price match a quote from another company and Alex went above and way beyond to take care of our system and even trouble shooting an issue that wasn’t his problem. He wanted to make sure everything was perfect before he left. Additionally, it’s rare to find someone so professional in both their appearance and customer interaction and someone who communicates so well. He really explained everything clearly and you could tell he takes pride in his job and work ethic. I can’t say enough nice things about him. He even honored the agreed upon price even though I know he could have charged us way more for the time he spent. It was so refreshing to meet someone so honest and friendly. Thanks Alex and thanks Adon!!!

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Detailed, thorough, professional

Excellent service.

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Job Locations

Shelby S.

Shelby S. Job Checkin

3 year warranty / 10,000.00 coverage if part fails to protect connected equipment. I installed the surge protector on the outdoor unit and ensured it was functional. I washed the evaporator coil thoroughly with chemicals, allowed time to soak, and rinsed it with water. We provided this cleaning to address dirty Sox syndrome and customer is aware that it will likely return, with no estimated time frame, without preventive u/v devices.

3 year warranty / 10,000.00 coverage if part fails to protect connected equipment. I installed the surge protector on the outdoor unit and ensured it was functional.

I washed the evaporator coil thoroughly with chemicals, allowed time to soak, and rinsed it with water. We provided this cleaning to address dirty Sox syndrome and customer is aware that it will likely return, with no estimated time frame, without preventive u/v devices. 3 year warranty / 10,000.00 coverage if part fails to protect connected equipment. I installed the surge protector on the outdoor unit and ensured it was functional.

I washed the evaporator coil thoroughly with chemicals, allowed time to soak, and rinsed it with water. We provided this cleaning to address dirty Sox syndrome and customer is aware that it will likely return, with no estimated time frame, without preventive u/v devices.

Brayden W.

Brayden W. Job Checkin

Homeowner stated Thermostat was showing that the unit was running in heat last night, however, the master bedroom did not heat up to set point over the course of the night. They did notice in the morning that the unit had reached setpoint and seemed to be working as intended. Upon view of the unit I found it turned on when calling for heat, however, it would shut off shortly after. I hooked up my gauges and saw the pressures were low on the low side about 50 to 60 on the low side and around 200 on the high side. Upon closer inspection of the condenser wiring, I noticed that one of the wires to energize the contactor was loose. Upon tightening this connection unit turned on with call for heat and continued to heat. After running the unit for about 30 minutes pressure is normalized and everything to be seem to be working as intended. I then tested the unit and cooling to ensure everything was working as intended and found no issues. Unit in good working order at this time.

Homeowner stated Thermostat was showing that the unit was running in heat last night, however, the master bedroom did not heat up to set point over the course of the night. They did notice in the morning that the unit had reached setpoint and seemed to be working as intended. Upon view of the unit I found it turned on when calling for heat, however, it would shut off shortly after. I hooked up my gauges and saw the pressures were low on the low side about 50 to 60 on the low side and around 200 on the high side. Upon closer inspection of the condenser wiring, I noticed that one of the wires to energize the contactor was loose. Upon tightening this connection unit turned on with call for heat and continued to heat. After running the unit for about 30 minutes pressure is normalized and everything to be seem to be working as intended. I then tested the unit and cooling to ensure everything was working as intended and found no issues. Unit in good working order at this time. Homeowner stated Thermostat was showing that the unit was running in heat last night, however, the master bedroom did not heat up to set point over the course of the night. They did notice in the morning that the unit had reached setpoint and seemed to be working as intended. Upon view of the unit I found it turned on when calling for heat, however, it would shut off shortly after. I hooked up my gauges and saw the pressures were low on the low side about 50 to 60 on the low side and around 200 on the high side. Upon closer inspection of the condenser wiring, I noticed that one of the wires to energize the contactor was loose. Upon tightening this connection unit turned on with call for heat and continued to heat. After running the unit for about 30 minutes pressure is normalized and everything to be seem to be working as intended. I then tested the unit and cooling to ensure everything was working as intended and found no issues. Unit in good working order at this time.

Matthew C.

Matthew C. Job Checkin

-Contactor -Turbo Multi Use Capacitor - 5-2-1 Hard Start Kit CLEAR DRAIN BLOCK - USING NITROGEN ONLY LEVEL 3 CONDENSATE DRAIN LINES NEED TO BE CLEANED OR THEY CAN CLOG WITH ALGAE AND DEBRIS Includes shop vacuuming when necessary and 1 PVC Coupling Also installation of a Quickblast PVC fitting, SS1 Safety Switch, P-Trap, and Vent Pipe. 60” x32” secondary drain pan with pan spray sealant. VIP Annual Service Agreement - 3 Unit Fall & Spring Annual Maintenance Visits 10% Discount on Repairs Discounted $45 Travel Fee (Usually $79!) Preferred Customer!

-Contactor
-Turbo Multi Use Capacitor
- 5-2-1 Hard Start Kit

CLEAR DRAIN BLOCK - USING NITROGEN ONLY LEVEL 3

CONDENSATE DRAIN LINES NEED TO BE CLEANED OR THEY CAN CLOG WITH ALGAE AND DEBRIS

Includes shop vacuuming when necessary and 1 PVC Coupling

Also installation of a Quickblast PVC fitting, SS1 Safety Switch, P-Trap, and Vent Pipe.

60” x32” secondary drain pan with pan spray sealant. 

VIP Annual Service Agreement - 3 Unit
Fall & Spring Annual Maintenance Visits
10% Discount on Repairs
Discounted $45 Travel Fee (Usually $79!)
Preferred Customer! -Contactor
-Turbo Multi Use Capacitor
- 5-2-1 Hard Start Kit

CLEAR DRAIN BLOCK - USING NITROGEN ONLY LEVEL 3

CONDENSATE DRAIN LINES NEED TO BE CLEANED OR THEY CAN CLOG WITH ALGAE AND DEBRIS

Includes shop vacuuming when necessary and 1 PVC Coupling

Also installation of a Quickblast PVC fitting, SS1 Safety Switch, P-Trap, and Vent Pipe.

60” x32” secondary drain pan with pan spray sealant. 

VIP Annual Service Agreement - 3 Unit
Fall & Spring Annual Maintenance Visits
10% Discount on Repairs
Discounted $45 Travel Fee (Usually $79!)
Preferred Customer!

Shelby S.

Shelby S. Job Checkin

I returned and replaced the defrost temperature sensor for the smaller unit. I began to unhook wires to replace the heat kit for the main unit and discovered that I did not have the correct heat kit. The heat kit I was given by the supply house has a 9 pin plug. The one that is currently in there is for a TEM6 and has a couple wire nuts that go to the control board. From the control board it is fed to relays to activate the heat strips on a 20kw heat kit. The heat kit information isn’t obtainable due to tag damage. We will need to cross reference the model and serial from the airhandler tag from the job on 12/12/2025.

I returned and replaced the defrost temperature sensor for the smaller unit. I began to unhook wires to replace the heat kit for the main unit and discovered that I did not have the correct heat kit. The heat kit I was given by the supply house has a 9 pin plug. The one that is currently in there is for a TEM6 and has a couple wire nuts that go to the control board. From the control board it is fed to relays to activate the heat strips on a 20kw heat kit. The heat kit information isn’t obtainable due to tag damage. We will need to cross reference the model and serial from the airhandler tag from the job on 12/12/2025. I returned and replaced the defrost temperature sensor for the smaller unit. I began to unhook wires to replace the heat kit for the main unit and discovered that I did not have the correct heat kit. The heat kit I was given by the supply house has a 9 pin plug. The one that is currently in there is for a TEM6 and has a couple wire nuts that go to the control board. From the control board it is fed to relays to activate the heat strips on a 20kw heat kit. The heat kit information isn’t obtainable due to tag damage. We will need to cross reference the model and serial from the airhandler tag from the job on 12/12/2025.

Brayden W.

Brayden W. Job Checkin

Ptac 14- systems working as intended Ptac 15 Ptac 16 Ptac 22 Ptac 23 Ptac 29 Ptac 21 Ptac 27 - error FH. Bad temperature sensor for return air Ptac 28 - bad dehumidification fan- fan disabled for time being to stop squealing Ptac 13 - short cycling. Heat kit is working at this time however unit will not run in cooling

Ptac 14- systems working as intended
Ptac 15
Ptac 16
Ptac 22
Ptac 23
Ptac 29
Ptac 21

Ptac 27 - error FH. Bad temperature sensor for return air
Ptac 28 - bad dehumidification fan- fan disabled for time being to stop squealing
Ptac 13 - short cycling. Heat kit is working at this time however unit will not run in cooling 
Ptac 14- systems working as intended
Ptac 15
Ptac 16
Ptac 22
Ptac 23
Ptac 29
Ptac 21

Ptac 27 - error FH. Bad temperature sensor for return air
Ptac 28 - bad dehumidification fan- fan disabled for time being to stop squealing
Ptac 13 - short cycling. Heat kit is working at this time however unit will not run in cooling

Shelby S.

Shelby S. Job Checkin

I performed a single system heating maintenance on a 2017 zoned gas system. I checked amps, capacitors, ohms, electrical, cleanliness, and safeties. During my thorough evaluation, I noticed that the ohm value of the hot surface igniter is reading way below normal range. It is only reading 14ohms and indicates a lack of resistance. I took a photo of it showing a huge white spot. These are signs that he igniter does not have much life left. Also, I had the furnace trip on the high limit switch during operation. I confirmed that the air was not hot enough yet to result in tripping. The high temperature switch is tripping before its 190 degree limit and allowing the system to come back on immediately. These switches are design to cut out and allow time to cool the switch by 30degrees. I verified that the warranty is expired and priced these failing parts. I offered to install surge protection, as well.

I performed a single system heating maintenance on a 2017 zoned gas system. I checked amps, capacitors, ohms, electrical, cleanliness, and safeties. During my thorough evaluation, I noticed that the ohm value of the hot surface igniter is reading way below normal range. It is only reading 14ohms and indicates a lack of resistance. I took a photo of it showing a huge white spot. These are signs that he igniter does not have much life left. Also, I had the furnace trip on the high limit switch during operation. I confirmed that the air was not hot enough yet to result in tripping. The high temperature switch is tripping before its 190 degree limit and allowing the system to come back on immediately. These switches are design to cut out and allow time to cool the switch by 30degrees. I verified that the warranty is expired and priced these failing parts. I offered to install surge protection, as well. I performed a single system heating maintenance on a 2017 zoned gas system. I checked amps, capacitors, ohms, electrical, cleanliness, and safeties. During my thorough evaluation, I noticed that the ohm value of the hot surface igniter is reading way below normal range. It is only reading 14ohms and indicates a lack of resistance. I took a photo of it showing a huge white spot. These are signs that he igniter does not have much life left. Also, I had the furnace trip on the high limit switch during operation. I confirmed that the air was not hot enough yet to result in tripping. The high temperature switch is tripping before its 190 degree limit and allowing the system to come back on immediately. These switches are design to cut out and allow time to cool the switch by 30degrees. I verified that the warranty is expired and priced these failing parts. I offered to install surge protection, as well.

Shelby S.

Shelby S. Job Checkin

I performed a single heating maintenance on a Heatpump system. The outdoor unit is from 2016 and the indoor unit is from 2023. I checked amps, capacitor, filter, electrical, cleanliness, and safeties. During my evaluation, I noticed that the compressor is pulling close to its maximum rated amps when it starts. Also, I noticed that the capacitor 45/5 is outside of the manufacture specification for the fan motor side 4.2/5. The customer is interested in getting the work done, but we need to reach out to verify the route to payment.

I performed a single heating maintenance on a Heatpump system. The outdoor unit is from 2016 and the indoor unit is from 2023. I checked amps, capacitor, filter, electrical, cleanliness, and safeties. During my evaluation, I noticed that the compressor is pulling close to its maximum rated amps when it starts. Also, I noticed that the capacitor 45/5 is outside of the manufacture specification for the fan motor side 4.2/5. The customer is interested in getting the work done, but we need to reach out to verify the route to payment. I performed a single heating maintenance on a Heatpump system. The outdoor unit is from 2016 and the indoor unit is from 2023. I checked amps, capacitor, filter, electrical, cleanliness, and safeties. During my evaluation, I noticed that the compressor is pulling close to its maximum rated amps when it starts. Also, I noticed that the capacitor 45/5 is outside of the manufacture specification for the fan motor side 4.2/5. The customer is interested in getting the work done, but we need to reach out to verify the route to payment.

Brayden W.

Brayden W. Job Checkin

Installed gas valve under warranty and leak tested with videos shown to homeowner.

Installed gas valve under warranty and leak tested with videos shown to homeowner.

Brayden W.

Brayden W. Job Checkin

Arrived on site for no heat call. Assisted homeowner in operating Trane thermostat for other unit that was not having issues. Homeowner stated thermostat had turned off and was unresponsive. Upon inspecting the thermostat I found it was powered on and seem to be cooling. I then tested the drain line with a gallon of water and found no blockage. Upon taking a temperature split I noticed I was only getting about a 10° difference. And then went outside and verified refrigerant pressures and found the low side testing around 60 to 70 psi and high side around 200. I removed the very dirty filter from the unit and instantly measured a 20° split upon checking pressures. I found 110 on the low side and around 200 on the high side. I then tested zone one damper for the upstairs and zone two for the downstairs and found no issues. Advised homeowner to replace filters every month. Unit in good working order upon departure.

Arrived on site for no heat call. Assisted homeowner in operating Trane  thermostat for other unit that was not having issues. Homeowner stated thermostat had turned off and was unresponsive. Upon inspecting the thermostat I found it was powered on and seem to be cooling. I then tested the drain line with a gallon of water and found no blockage. Upon taking a temperature split I noticed I was only getting about a 10° difference. And then went outside and verified refrigerant pressures and found the low side testing around 60 to 70 psi and high side around 200. I removed the  very dirty filter from the unit and instantly measured a 20° split upon checking pressures. I found 110 on the low side and around 200 on the high side. I then tested zone one damper for the upstairs and zone two for the downstairs and found no issues. Advised homeowner to replace filters every month. Unit in good working order upon departure. Arrived on site for no heat call. Assisted homeowner in operating Trane  thermostat for other unit that was not having issues. Homeowner stated thermostat had turned off and was unresponsive. Upon inspecting the thermostat I found it was powered on and seem to be cooling. I then tested the drain line with a gallon of water and found no blockage. Upon taking a temperature split I noticed I was only getting about a 10° difference. And then went outside and verified refrigerant pressures and found the low side testing around 60 to 70 psi and high side around 200. I removed the  very dirty filter from the unit and instantly measured a 20° split upon checking pressures. I found 110 on the low side and around 200 on the high side. I then tested zone one damper for the upstairs and zone two for the downstairs and found no issues. Advised homeowner to replace filters every month. Unit in good working order upon departure.

Shelby S.

Shelby S. Job Checkin

I performed a single heating maintenance on a 2023 Lennox gas system. I checked amps, filter, electrical, cleanliness, and safeties. Once I proceeded to the attic I heard a noise coming from the furnace. I opened the system up and began checking. I discovered that the noise is coming from the blower motor. Customer stated that you can’t hear it from within the home. I determined that the bearings are worn on the blower motor resulting is a noise that is deemed not normal. The blower motor is an X13 and still covered by warranty. I noticed that the unit does not have surge protection and offered it as well. Customer declined repairs at the time of service.

I performed a single heating maintenance on a 2023 Lennox gas system. I checked amps, filter, electrical, cleanliness, and safeties. Once I proceeded to the attic I heard a noise coming from the furnace. I opened the system up and began checking. I discovered that the noise is coming from the blower motor. Customer stated that you can’t hear it from within the home. I determined that the bearings are worn on the blower motor resulting is a noise that is deemed not normal. The blower motor is an X13 and still covered by warranty. I noticed that the unit does not have surge protection and offered it as well. Customer declined repairs at the time of service. I performed a single heating maintenance on a 2023 Lennox gas system. I checked amps, filter, electrical, cleanliness, and safeties. Once I proceeded to the attic I heard a noise coming from the furnace. I opened the system up and began checking. I discovered that the noise is coming from the blower motor. Customer stated that you can’t hear it from within the home. I determined that the bearings are worn on the blower motor resulting is a noise that is deemed not normal. The blower motor is an X13 and still covered by warranty. I noticed that the unit does not have surge protection and offered it as well. Customer declined repairs at the time of service.

Matthew C.

Matthew C. Job Checkin

Preformed single system heat pump heating maintenance. I tested all electrical components on the inside air handler, all tested within manufacturer specifications. I proceeded outside to test all electrical components on condenser unit. All tested within manufacturer specifications. Client had already changed her filter. Unit was heating upon departure.

Preformed single system heat pump heating maintenance. I tested all electrical components on the inside air handler, all tested within manufacturer specifications. I proceeded outside to test all electrical components on condenser unit. All tested within manufacturer specifications. Client had already changed her filter. Unit was heating upon departure. Preformed single system heat pump heating maintenance. I tested all electrical components on the inside air handler, all tested within manufacturer specifications. I proceeded outside to test all electrical components on condenser unit. All tested within manufacturer specifications. Client had already changed her filter. Unit was heating upon departure.

Matthew C.

Matthew C. Job Checkin

Preformed dryer vent cleaning, Preformed 2 system heat pump heating maintenance. I tested all electrical components for the upstairs and down stairs units. All electrical on the i side equipment tested within manufacturer specifications. I proceeded to test all electrical components and start amps on the compressor. I found that on the upstairs unit the capacitor and Contactor were failing. Also the unit was starting up at 60 amps out of 59 amps. I also found that on the downstairs unit the start amps were over 100 amps. Client elected to have compressor saver bundle installed on the upstairs unit and a hard start kit installed on the downstairs unit. Both units are heating upon departure. -Contactor -Turbo Multi Use Capacitor - 5-2-1 Hard Start Kit x 2

Preformed dryer vent cleaning, 

Preformed 2 system heat pump heating maintenance. I tested all electrical components for the upstairs and down stairs units. All electrical on the i side equipment tested within manufacturer specifications. I proceeded to test all electrical components and start amps on the compressor. I found that on the upstairs unit the capacitor and Contactor were failing. Also the unit was starting up at 60 amps out of 59 amps. I also found that on the downstairs unit the start amps were over 100 amps. Client elected to have compressor saver bundle installed on the upstairs unit and a hard start kit installed on the downstairs unit. Both units are heating upon departure.

-Contactor
-Turbo Multi Use Capacitor
- 5-2-1 Hard Start Kit x 2

Preformed dryer vent cleaning, 

Preformed 2 system heat pump heating maintenance. I tested all electrical components for the upstairs and down stairs units. All electrical on the i side equipment tested within manufacturer specifications. I proceeded to test all electrical components and start amps on the compressor. I found that on the upstairs unit the capacitor and Contactor were failing. Also the unit was starting up at 60 amps out of 59 amps. I also found that on the downstairs unit the start amps were over 100 amps. Client elected to have compressor saver bundle installed on the upstairs unit and a hard start kit installed on the downstairs unit. Both units are heating upon departure.

-Contactor
-Turbo Multi Use Capacitor
- 5-2-1 Hard Start Kit x 2

Shelby S.

Shelby S. Job Checkin

Upon arrival, I found that the inducer motor is locked up on the downstairs unit. This will not allow the heating process to happen. I sent a payment link via email.

Upon arrival, I found that the inducer motor is locked up on the downstairs unit. This will not allow the heating process to happen. I sent a payment link via email.

Shelby S.

Shelby S. Job Checkin

I performed a heating maintenance on two 2016 gas systems. I checked amps, capacitors, cleanliness, electrical, filters, and safeties. During my observation, I noticed that both blower wheels are in need of cleaning, both capacitors failed testing, and both units have gas leaks on the flex lines. The blower motor for the upstairs has bearings that are completely out. I verified warranty on these products. The blower motor and capacitors are covered under warranty. The cleanings and gas line are not covered. I spoke with he homeowner about surge protection and upgrading the filtration to help with the dust build up on the blower wheels. Warranty expires: 11/26/2026.

I performed a heating maintenance on two 2016 gas systems. I checked amps, capacitors, cleanliness, electrical, filters, and safeties. During my observation, I noticed that both blower wheels are in need of cleaning, both capacitors failed testing, and both units have gas leaks on the flex lines. The blower motor for the upstairs has bearings that are completely out. I verified warranty on these products. The blower motor and capacitors are covered under warranty. The cleanings and gas line are not covered. I spoke with he homeowner about surge protection and upgrading the filtration to help with the dust build up on the blower wheels. Warranty expires: 11/26/2026. I performed a heating maintenance on two 2016 gas systems. I checked amps, capacitors, cleanliness, electrical, filters, and safeties. During my observation, I noticed that both blower wheels are in need of cleaning, both capacitors failed testing, and both units have gas leaks on the flex lines. The blower motor for the upstairs has bearings that are completely out. I verified warranty on these products. The blower motor and capacitors are covered under warranty. The cleanings and gas line are not covered. I spoke with he homeowner about surge protection and upgrading the filtration to help with the dust build up on the blower wheels. Warranty expires: 11/26/2026.

Brayden W.

Brayden W. Job Checkin

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 compressor/ condenser fan motor capacitor. 6. Inspected / replaced return filter. 7. Inspected return plenum for debris/ dirty. 8. Inspected evaporator coil. 9. Inspected blower motor/ blower wheel. 10. Checked blower amp draw. 11. Measured temperature differential from supply to return. 20 degrees measured. 12. Tested capacitor and contactor (outdoor electrical) 13. Rinsed condenser unit to promote heat exchange 14. Tested electric heat and found no issues AHU 4A - all tested well AHU 4B - blown fuse 25 amp. Without this fuse unit will not run AHU 5 - door switch doesn’t shut off power to unit MAU 1 - all tested well

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 compressor/ condenser fan motor capacitor.
6. Inspected / replaced return filter.
7. Inspected return plenum for debris/ dirty.
8. Inspected evaporator coil.
9. Inspected blower motor/ blower wheel.
10. Checked blower amp draw.
11. Measured temperature differential from supply to return. 20 degrees measured.
12. Tested capacitor and contactor (outdoor electrical)
13. Rinsed condenser unit to promote heat exchange
14. Tested electric heat and found no issues

AHU 4A - all tested well
AHU 4B - blown fuse 25 amp. Without this fuse unit will not run
AHU 5 - door switch doesn’t shut off power to unit
MAU 1 - all tested well 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 compressor/ condenser fan motor capacitor.
6. Inspected / replaced return filter.
7. Inspected return plenum for debris/ dirty.
8. Inspected evaporator coil.
9. Inspected blower motor/ blower wheel.
10. Checked blower amp draw.
11. Measured temperature differential from supply to return. 20 degrees measured.
12. Tested capacitor and contactor (outdoor electrical)
13. Rinsed condenser unit to promote heat exchange
14. Tested electric heat and found no issues

AHU 4A - all tested well
AHU 4B - blown fuse 25 amp. Without this fuse unit will not run
AHU 5 - door switch doesn’t shut off power to unit
MAU 1 - all tested well