Heat Pumps and Electric Heating - Honeywell Chronotherm III Hold-AC

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tcf123
12-15-07, 03:39 PM
I have a Honeywell Chronotherm III electric heating system...I have three systems but one is displaying HOLD-AC and is NOT heating. I have tried replacing the batteries, checked the fuse box and made sure the doors on the air handler were correctly shut, and none of these seem to be the culprit....anymore suggestions before I call repairman? several weeks ago I had the hot surface ignitor replaced on this unit...it worked for about 2 weeks before the current problem (it is not the ignitor because I confirmed that the pilot was indeed lighting....just can't get heat to come out)
any suggestions:confused:

airman.1994
12-15-07, 06:18 PM
I believe that T-stat has a hold button on it. Have you pressed that button and if you did did the hold AC go off?