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Thread: Heat Pump Aux Heat coming on!!
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08-03-2006, 07:20 PM #1
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Help! What would cause a 5 year old heat pump (temp outside 97 degrees, heat index 105) to switch to aux. heat! My neighbor's is doing this. A guy came out yesterday and said he had never heard of that. Changed thermostat but still doing it. I haven't talked to her tonight. Thought I would throw the question to the experts that helped me in the past with my furnace!
Any ideas?
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08-03-2006, 07:23 PM #2
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Have her call another service company out.
Its a bad sensor in the outdoor unit, most likely.
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08-03-2006, 07:58 PM #3
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I had the same problem 2 weeks ago. It was a 1985 Trane 5 ton 3 phase HP. Defrost board at the AHU. Outdoor Thermister failed, open ckt, which caused condenser fan to drop out and X2 energized heat. Just have them get it looked at. Should be fairly easy troubleshoot.
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08-03-2006, 08:53 PM #4
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Thanks
Thanks for info. I will pass it along.
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08-03-2006, 09:16 PM #5
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your original thread is still active.
http://www.hvac-talk.com/vbb/showthr...hreadid=112082
Do not attempt vast projects with
half vast experience and ideas.
...
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08-03-2006, 09:57 PM #6
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your original thread is still active.
http://www.hvac-talk.com/vbb/showthr...hreadid=112082
AND it was the same advice i gave there.It's not the Brand with the fewest repairs-It's all in the install!!! Attention to detail and using the best materials!
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