A/C Stopped Working-------Any Ideas

[JEly]

I am having problems with my A/C unit and I am looking for ideas before taking it to the dealer. It was working fine throughout the summer and I was at a KOA in Indy last month and we went to start the A/C up an no go---nothing would work in the cooling mode I could switch to heat and the furnace fan would start and run. I messed with it for several minutes with no luck checked all the fuses, breakers--everything was fine---20 minutes later my son tries it and it goes and worked fine for the rest of the weekend. I decided to try it again since we arent camping and it doesnt work and someone said to check the capacitors. Is this something that goes bad often my unit is only 17 months old and how do you check them.

Sorry for the long post



Thanks

JIM

 

[GregWilson]

I had a similar peoblem this summer is upper 90 degree weather. Everything seemed to work fine. The fan was blowing but no cold air came out. I had turned off the ac for about 5 minutes and it started working again. Then it did it again. This time I turned the heat on and ac off for a few minutes and it started working again. It sucked to have to turn the heat in in 99 degree weather. But once the ac started working again it worked fine. I haven't had a chance to ask the dealer about it. I had the feeling that a vent was icing up and blocking the flow of air.

 

[CarlJensen]

I have had mine ice up on fairly humid days. Pulled the inner cover off and it was solid ice. Once thawed it would cool again. Found it would ice quickly in low fan but not so bad in high fan. If the compressor quits then it may be the capacative start motor. The caps do go out and any good HVAC man can fix in short order. The motor uses a phase shift for rotation, especially at start. If they are weak or gone the motor won't start to rotate.

 

[B.G. Smith]

Ac

The fan probably has a capacitor and the compressor probably has a starting relay, no capacitor. If nothing ran and then later it worked fine, I doubt that the trouble is a capacitor, I would suspect the thermostat first. bg

 

[Wooter]

I have had a similar situation - compressor was not cycling properly (it ran all the time) so it would ice up the cooling coil! This has happened several times, but not recently. Also, at times, the blower motor will not shut off! I think that may be part of problem also! The dealer supposedly fixed the blower mtr running all of the time. The fix lasted for a couple of years, but it is doing it again. Maby this info will help in some way; I'll still keep the trk

 

[JEly]

I sent Coleman a email with problem and his reply was either the thermostat or a control board. It's at the dealer's now waiting for repair.



Jim