Kyle TX Heating & Air Conditioning Services

Service diagnostic found that the low voltage fuse on the furnace control board was blown. I tested the wiring and found a short in the Y wire heading out to the condenser unit. At the condenser I found that the contactor in the condenser unit had also shorted. Lastly, the capacitor for the condenser unit was depleted and the condenser fan motor was overheating. Options for repair were presented to the homeowners, and they chose to have the contactor, capacitor and condenser fan motor replaced today. I completed all three repairs and tested the system. The system is now operational.

Performed heater tune-up on a Carrier gas system. Checked electrical, mechanical and performance systems of the unit. Cleared, cleaned, flushed and treated the drain line and cleaned the exterior of the furnace. I replaced the high voltage wire nuts with a Wago wire connector. I checked the static pressure of the system and found that the fan speed was set to deliver 1035cfm on a 3-ton system. This air flow setting is correct for this size system, but the static pressure is higher than recommended at .78. I also found the blower capacitor is rated for 7.5 mfd and is reading 5.2mfd at this time which is below value. No other major issues were found, and the system is operational at this time.

Performed heater tune-up. Checked electrical, mechanical, safety, and performance of the system. I cleared the drain line and tested the drain with two gallons of water. I also treated the drain. No major issues were found, and the system is running at the completion of service.

Performed a heater tune-up on a Carrier gas system. Checked electrical, mechanical and performance systems of the unit. Cleared, cleaned, flushed and treated the drain line and cleaned the exterior of the furnace. I replaced the high voltage wire nuts with a Wago wire connector. I also sealed a hole in the furnace to prevent any unfiltered attic air from being pulled into the system. I checked the static pressure of the system and found that the fan speed was set to deliver about 900 cfm on a 2.5-ton system. The static pressure of the system is .75 which is higher than recommended. No other major issues were found, and the system is operational at this time.

Performed heater tune-up on a two stage Trane gas system. Checked electrical, mechanical and performance systems of the unit. Cleared, cleaned, flushed and treated the drain line and cleaned the exterior of the furnace. I replaced the high voltage wire nuts with a Wago wire connector. I checked the static pressure of the system and found that the fan speed was set too high for a 3-ton system. This air flow setting was causing a high static pressure of .91. I lowered the fan speed, and the system is now delivering 1183 cfm. As I lowered the fan speed, I noticed my total static reading dropped to .58. This static reading is closer to the rated .5 static pressure on the furnace and will reduce wear and tear on the system. No other major issues were found, and the system is operational at this time.

Service diagnostic found that the condensate drain line was clogged. Water had backed up into the secondary drain line and tripped the safety switch shutting down the system. The power relay in the air handler is also burnt and corroded. The blower wheel and air return are dirty. The condenser fan motor shows signs of overheating. The contactor on the condenser unit is blackened. The low voltage wiring in the condenser unit has exposed wire. Options for repair were presented to homeowner, who chose to have the drain line cleared, the power relay replaced, and the condenser fan motor replaced today. All three repairs were completed. I function tested the system and it is operational at the completion of service.

Performed heater tune-up. Checked electrical, mechanical, safety, and performance of the system. The drain line was cleared, and flow tested with two gallons of water. The drain line was then treated. No major issues were found, and the system is running at the time of departure.

On arrival, I found the thermostat blank due. Upon further diagnosis, I found the emergency water safety switch tripped which turned off control voltage power to the unit. I cleaned and cleared the drain and then flushed roughly six gallons of hot water through the drain until all the water was flowing out clearly. I also added drain treatment to the primary drain line and the internal coil pan. I also cleaned off the condenser pad where the drain runs onto to remove all buildup and grass that could have restricted the drain line. Reset power to the system and allowed system to run. I did recommend that Michael (the tenant) leave the system running for a bit to help remove some of the humidity inside the home. Lastly, sealed up some air straws at the air handler (at no extra charge) and also sealed up the air handler cover panels where there were some air gaps that would allow for the “attic” closet air to enter into the system. Everything is working at this time.

Performed a complete re-duct on the master bed and living system. Replaced the buckets and grilles and sealed all pressure points with air lock. Installed new return and extended supply plenums. Cut in additional return in entry way. Also, completed a re-duct on guest bed/office system. Installed a new return and supply plenums. Sealed all duct work with air lock and hung flex with nylon strap. Cleared drain line with CO2 and verified operation. Systems are working at this time.

I performed a leak check on the system and did not find a leak. I turned on the system to cool and let it run for thirty minutes. The coil was not freezing over; however, the system is low on refrigerant and was running at 1.7 degrees of sub cooling. The temperature split for the system was 11 degrees. Options for repair were presented to the customer, and he chose to have refrigerant added to the system. I added 1.4 lbs of R-410A to the system. This brought the sub cooling up to 10 degrees. The temperature split improved to 16 degrees. The system was running at the time of departure.

After performing the diagnostic, I found that the emergency water safety switch was tripped due to a clogged drain line. I cleaned and cleared the primary condensate drain until all build up was removed. I also added a drain treatment into the line to help with condensate drainage. I ran the bathroom sink that the line runs into to verify the plumbing drain was not restricted either. Also removed all condensate overflow from the water safety switch prior to resetting system. Restored power to system and allowed the AC unit to run while checking over operation. Everything is working at this time.

Performed diagnostic on the three-year-old horizontal Lennox furnace/condenser. Upon arrival, I found the indoor unit blowing air. Visually inspected the attic unit for anything abnormal. Then went outside to the condenser and found that the capacitor had failed. Presented the customer with repair options along with our maintenance membership. The customer has opted to become a Gold member and have the capacitor replaced today. I replaced the dual capacitor. Also cleaned the inside of the electrical compartment and the condenser coil from inside to out. I also resolved a possible future rubout on the wire harness to compressor. Cycled system on to verify proper operation.

Performed a heater tune-up on a Carrier gas system. I checked the performance, mechanical, safety, and electrical systems of the furnace. No major issues were found with the furnace operation however I did find that the static pressure of the system is high due to the filter that is installed on the unit.

Heating tune-up performed on 12-year-old horizontal gas system. Checked electrical, mechanical, safety, and performance of the system. The only major issue found was high static pressure. I was able to resolve this issue by adjusting the blower motor fan speed.

Performed semiannual maintenance on one high efficiency gas system. Inspected all Performance, Mechanical and Safety systems. Primed the furnace drain trap to be ready for heating season. Went through the system and adjusted the fuel pressure to ensure 100% heating capacity. Everything is working at this time.