Problems with older Amana unit - http://www.hvacmechanic.com/ Forums
Original message
| jegreenejr
 |  "Problems with older Amana unit"
, posted Mon 21 Apr 12:40  
I have an older (2002) Amana HVAC unit. The model # for the furnace is CCA48FDC (Amana 90 Air Command). The model # for the outside unit, which is was told is a heat pump is RHE42A2D. I had the unit checked out before purchasing the home and I replaced the older style thermostat with a programmable Honeywell model. It has worked well for a month. Saturday, I turned it off and "aired" out the house. When I turned it back on Sunday morning (it was 64 degrees in the house), it cam on normally, ran for about a minute, then quit. No breakers were tripped. Nothing looks amiss on the thermostat. But it will not work. Nothing works, not even the fan. And there was no smell indicative of a burned out component. Any ideas how to proceed next? I hesitate to call a tech because I am guessing it is something simple.
John
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Replies:
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| theduke03
| "Re(1):Problems with older Amana unit" , posted Mon 21 Apr 18:37
You will need to reset your furnace by turning power off then back on. The watch sequence of events and report back. How does your filter look?
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| | jegreenejr
| "Re(2):Problems with older Amana unit" , posted Tue 22 Apr 08:52
Actually, I have reset the power multiple times with no effect. Yesterday I checked the power at all locations and it was good. The filter was changed less than two months ago and is good. I also reverted back to the old thermostat (not programmable). Nothing on it seems to work (no lights nor signs of voltage), so I am guessing the transformer for the low voltage is bad or there is a circuit board in the furnace or A/C controlling the thermostat that is defective. But nothing is visible.
John
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