DISCONNECT INDOOR FUSED 60A W/ FUSES FUSED DISCONNECTS ARE SAFETY MEASURES PROTECT AGAINST POWER SURGES. A TECH CAN ALSO USE THE DISCONNECT TO CUT THE POWER TO SAFELY SERVICE THE UNIT.
I performed a single heating maintenance on a 2014 heat pump system. I checked amps, capacitor, filter, electrical, cleanliness, and safeties. During my thorough evaluation, I discovered that the disconnect is welded shut and not operational. Also, I removed a cooked lizard from the capacitor. I advise adding a surge protector to minimize damage with critters crawling into the panel.
I returned to install a ECM blower motor. I tested the blower with the thermostat. I showed the customer that the blower runs and will shut off when it’s suppose to. System is back to working normally.
Upon arrival, I found the blower motor running none stop with the thermostat off and fan set to auto. I proceeded to the attic and checked my voltage at the motor. I confirmed that I have my 240v to power the motor. I removed the 24v speed wires from the motor and it still continuously ran. This indicated that the motor control module is faulty causing the motor to stay on without a speed voltage call. I reached out to shearer supply and ordered the motor. The system is not down and heating at this time,
Performed a complete heating system maintenance and inspection. Inspected and tested all electrical components and safety controls on the indoor unit; all components tested within manufacturer specifications. Inspected UV bulb at client’s request; bulb is in good working condition and does not require maintenance at this time. Verified system temperatures: return air temperature measured at 76°F; supply air temperature measured at 102°F and rising. Confirmed air filter was recently replaced by client; filter size is 20” x 20” x 4”. Inspected and tested all electrical components on the outdoor unit; all components tested within manufacturer specifications. Confirmed system was operating properly and heating upon departure. System Status: Operating normally at time of service. Left an estimate for surge protection. Wants to talk more on that on the next visit.
I performed a single system heating maintenance on a 2015 carrier heat pump. I checked amps, capacitors, filters, electrical, cleanliness, and safeties. The airhandler has build up present and the equipment does not have surge protectors.
I replaced 1 of the 2 contactors on the heating kit. I replaced it because it was shorted causing the fuse to pop. Also, I installed a bolt in pressure switch to monitor the low pressure side of the system. I leak checked after installation to ensure the system was not losing refrigerant from the connection.
Returned to bypass low pressure switch and shorted contactor. System was cooling upon departure and I covered the risks of bypassing the low pressure switch. Customer understood the risks. I attached pictures of the wires. The system is cooling upon departure.
Upon arrival, I found the 24v fuse was popped. I hooked up my short finder and found that the outdoor unit would not continuously run. I proceeded outside and found the low pressure switch would periodically only pass 7v/24v through it. I jumped the switch out of the wiring and got it to run. After a little bit of time, the unit stopped working. I proceeded to further test the indoor and found one of the contactors for the heating kit is shorted out. It is currently reading 1.4ohms. I unwired the bad contactor and the system would run with not vault with the low pressure switch bypassed and bad contactor wired out. We will need to locate the part to be able to price it. Customer wanted to replace the contactor when we replace the low pressure switch. I left the system off with the first contactor unmounted to allow access in the future. I took pictures to indicate the failed contactor.
Unit needed to slide back an inch. The unit is not secured to the filter base. This could not be determined at the time of the cleaning due to the door being removed when service was provided.
Upon arrival, I found that the evaporator coil was mostly thawed. I performed a complimentary leak search and found no reason to suspect a leak. I inspected the old filter and the cleanliness of the evaporator coil. I determined that the cause of the freezing was lack of air flow. After further inspection, I noticed the blower was dirty. I made customer aware of build up in the drain lines. He opted to address it himself. I provided options to clean the system from basic to more in depth to system replacement. Customer elected to perform a pull and clean on the evaporator coil, pull and clean the blower wheel, and sign up for the maintenance program. Customer is aware of the risk of performing a pull and clean on the evaporator coil. The evaporator coil is 11 years old with rusting present. When applying chemicals, this could cause a leak to occur in the evaporator coil. Also, the customer is aware of the importance of cleaning to evaporator to help preserve the life of the compressor.
Arrived to unit not cooling properly. Client has had unit freeze up before but never charged up. I proceeded outside and confirmed the unit was low on refrigerant. The system takes R410a. I gave our clients the option to charge it up with Freon but I explained that there is no guarantee or warranty on the Freon. We also discussed how there is a leak present Most likely in the evaporator coil. They declined the Freon charge at this time. They are aware the system takes about 7.5 pounds of Freon total. They shut the unit off and will continue to run is sparingly.
Upon arrival customer stated that all has been preforming perfectly. Preformed cooling maintenance. Tested all electrical components on inside and outside units. All tested within manufacturer specifications. Temp drop across coils is 18 degrees. Client does not need filter changed at this time. Unit was cooling upon departure.
Returned to home to install 2 hard start kits on the larger 5 ton units in the main home. Once installed I tested and ensured the unit start amps were within range. Both units are running properly on departure. I also discussed maintenance plan renewal with Mr Barnett and he elected not to renew at this time. I will send him an estimate to look it over for future reference.
Arrived on site, customer stated they were not having any issues or concerns. Found bad fan capacitor in up stairs office furnace. The remaining furnaces were testing within manufacture. Found bad fan capacitors on both 5 Ton condensers as well as high start amps (150). All contractors were testing within range. Washed all outdoor units to assist with unit efficiency. Noticed thermostat wire on one of the garage units had exposed wire. Appears to be due to sun exposure. Recommended to customer to replace the bad capacitors and install hard start kits to extend the life of the over amping condensers. Customer went ahead with estimate. Replaced all bad capacitors and repaired damaged thermostat wire. Scheduled return visit to install hard start kits. All units in working order upon departure.