Two heating companies and Propane company could not figure the problem out. If your home warranty contractor is using the same Copeland scroll compressor as what came out of your existing unit then I would say this would be A-OK since you are getting the same compressor installed. New clean filters. Hi, My air conditioning unit failed at the end of summer. “Nothing is more valuable than helping another person succeed!”, We would love to help you troubleshoot and repair your furnace or air conditioner problem! thanks. Glad to hear that you found the problem in either the motor or the capacitor. Sorry for your trouble! Please check and make sure all your low voltage thermostat wire connections are good and tight. Fan off; Burner on; Fan on; Burner off; Pilot on; Fan off; etc. Steve. Unless I am wrong I would also think my furnace would shut down of there is no flame but it continues blowing cold air. Compressor getting tight. Stay on for 30 minutes or so and kick back off. If these two connections are receiving 24 to 28 volts with the thermostat not calling for cooling or with the thermostat turned off then you either have a bad thermostat or some of the thermostat wires are shorting together causing the outdoor unit to come on. I looked at the thermostat (red wire) and verified I only have <4 volts coming to it. I would suggest the next time the outdoor unit comes on when it is not supposed to that you test with a volt meter set to “volts AC” between the C (com) and Y (usually a yellow wire) on your furnace or air handlers control board. Just wanted to follow-up…figured out the problem described in my email…the following may help with future customers who buy this board. I’m getting ready to replace my 22 year old York heat pump with a Trane XL 16i. I was then told by an inspector that it needs it to be 3″ not 2″ PVC. By using these free ASE test questions and study guides, you’ll know where to focus on your Heating & Air Conditioning knowledge and know which study guides to review and practice. The problem is that the condensing unit (outside) will run in the cooling mode, but the blower motor will not come on. Steve, When turning on A/C after it’s been off for an hour or so it works fine, all pressures and temps normal at compressor and compressor fan running good, (with cool air coming through the vents). However, my HVAC control board was fried and we lost our AC. I have a Carrier unit about 8 yrs old. I always liked troubleshooting electric furnace’s with an amprobe which shows the amps running through the wires by just clamping around the wires. Best of luck in finding and fixing the problem. I hope you have a nice day! Thank you. PayPal, Secure Credit Card, Amazon Payments, and Mail in Check or Money Order. On the HVAC side (Control Board and Transformer, it has the following wires connecting to the wire going into the house: *There is a G wire, however it is not hooked up to anything on the outside unit and the control board has no G terminal. You might have an electrician advise you on this. Yes, from your description it does sound like a transformer issue or a loose wire on the primary or secondary side of the transformer. Learn. Failure to follow this procedure could result in damage to your air conditioning system”. The fan comes on; 30 seconds later the pilot light comes on; 30 seconds later the fan goes off; 6 seconds later the burner comes on; 65 seconds later the fan comes on; 1:30 seconds later the burner goes off; 1:20 seconds later the pilot light comes on again; this then repeats. My A/C unit is a year old. The right answer is to have an EPA certified technician to remove the refrigerant before anyone can disassemble the unit. and the coil can then be squeezed together some to make it fit through the attic access. You either have a stuck relay on the control board, a thermostat problem, thermostat wire problem or a limit that is open. Interested in any ideas! On a heat pump you should have at least 6 wires coming to the thermostat with these colors and functions being the rule of thumb: (1) R (red) hot wire coming from the hot side of the low voltage transformer. The thermostat wires from the thermostat usually junction inside the indoor air handler. Hi Ade! Hello friends ye HVAC part 3 hai iss video 10 questions ke answers diye hai aap apne answers ko right answers se compare kare. I bought two. Brown marks on control boards indicate excessive heat which is caused most of the time by arcing. Since the unit is having trouble starting I would suggest that you make sure that the run capacitor for the compressor is in good shape and not weak. If it is real hot then you need to call someone to find out what the problem is before it burns the compressor up. It kicks on and off. I had some siding replaced near my ac unit, and when they removed the disconnect, they shorted out the breaker. Sometimes I’ve noticed air coming out of registers as 65+ and not consistent through all vents. Write. I have looked around and read that reputable companies will not install an R22 unit, so in due time I will fork the money for a new system. Yes, you can run the heater, but I would not recommend running the outdoor unit at all. An easy solution to the coil from freezing up “ Warning…never stop the cooling tower is 590 solution. I read hvac questions and answers quiz the R and G, R and O, R and Y running! Amount of moisture in the system or cool day heat ) has in.. 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