Malvern, PA

Upon inspection, I discovered that the left back side of the duct board plenum was detached. Additionally, there was water under the filter and on the insulation of the coil compartment. Jaylen from AtWater assisted by clearing the drain line, which was suspected to be the cause of the water accumulation. I secured the plenum using duct board tape and proceeded to test the system. The voltage was measured at 212, and I connected the primary lead to the 208V tap. The system test showed a perfect temperature split of 18°, and the secured duct board remained intact during testing. However, on two occasions, the blower motor unexpectedly dipped in RPM before gradually returning to full speed. This issue occurs randomly and is not tied to any specific cycle. The blower motor appears to be failing and should be replaced soon. I have emailed an estimate for this and charged for the diagnostic today.

On October 16, I began by pulling the refrigerant charge back into the system. I then replaced the filter dryer and the indoor thermal expansion valve (TXV). After ensuring the system was properly sealed, I conducted a pressure test using 300 psi nitrogen and soap solution. The system was then vacuumed down to 470 microns. Following this, I released the charge and added 10 ounces of 410A refrigerant provided by the customer. The R410A pressures were recorded at 250/115 with 6 degrees of subcooling and 12 degrees of superheat. The temperature split was checked and found to be 18 degrees. The air conditioning system is now functioning properly.

Estimate

Upon inspection, we identified a tripped wet switch caused by water in the furnace auxiliary pan. The issue stemmed from a cracked 3/4” CPVC fitting that was dripping water onto the return duct, seeping through the snap lock seam into the return and eventually reaching the furnace. To resolve this, we first shut off the hot side valve and drained the water lines. We then replaced the leaking 3/4” CPVC elbow along with the necessary couplers. After ensuring no other leaks were present, we dried the HVAC equipment pan and reinstalled the wet switch. Additionally, we dried the area under the condensate pump and cork pad risers. We turned on the power vented water heater and tested it, followed by replacing the furnace filter. System operations were tested, achieving a cooling temperature split of 20°. To ensure thorough drying, we recommended setting the thermostat to fan On for 24 hours.

Estimate

On October 12, I responded to a call regarding a 90% efficient heater from 2022 with no heat. The customer reported no airflow in a three-zone system. Upon arrival, I found the system running but experiencing ignition errors, with burners cutting off intermittently. I checked venting, drains, igniter, and sensor, all of which were fine. I also tested the gas valve harnesses with no issues. The problem likely involves electronics or pressure switches, possibly due to dust on the contacts. I recommended starting with the pressure switches. Additionally, I noted rust on the side piping and provided an estimate for a fresh air intake, surge protector, and water sensor. I contacted the landlord to explain the situation and provided an estimate for the recommended repairs.

On 10/9/26, I conducted a comprehensive heat tune-up on two Lennox gas furnaces. I replaced the air filters and #35 pads provided by the homeowner. A thorough inspection of the heat exchanger and burners was performed, along with a gas pressure check. Flame sensors were cleaned, and blower capacitors were tested. The resistance of the heat sensor interface (HSI) was checked, and combustion tests were executed. Additionally, I provided estimates for installing wet switches to prevent water leaks and for UV systems to enhance air quality. Both systems, being 10 years old, are functioning well but should consider replacement options in the near future.

On 10/5/26, I assessed a 2016 Rudd heat pump system with no cooling. The air handler activated, but the heat pump did not. Upon inspection, the heat pump was locked out due to low pressure. After resetting, I found 410a pressures at 255/100. Running the system in heating mode showed pressures at 315/129. The indoor TXV valve malfunctioned. I provided a repair estimate and suggested considering replacement, as the system is 10 years old and the heat pump is currently non-functional.

On 9/5/26, I thoroughly assessed a no-cooling issue with a 2016 Rudd heat pump system. Upon inspection, I discovered that the 30 amp double pole breaker was completely tripped and unresponsive. After climbing to the rooftop, I conducted a megometer test, confirming that the compressor was grounded. This was further verified with a meter. Given the system's age, I recommended replacing the entire heat pump. Additionally, I provided a repair estimate that included replacing the compressor, the tripped breaker, and the indoor TXV. I presented both repair and replacement options to the customer.

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