Question about Heating & Cooling
Heat will not turn off when set point is reached. Even if you select heat off with the thermostat it will still blow heat. I'm not sure if I turn the fan off if heat stays on I'm afraid to do that. There must be a relay sticking I have changed the thermostat to a newer model and have had the same problem reoccure.
Sounds like a stuck sequencer. Verify there is not 24 Volt control voltage to sequencer coil, then replace sequencer.
Posted on Jan 06, 2014
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Posted on Jan 02, 2017
If the fan runs in the ON setting then you have a bad fan relay for the heat mode.
Did you install the t-stat before or after the problem?
If after, you have a bad fan relay.
Posted on Feb 21, 2009
Hi, you have replaced the stat several times, and adjusted the anticipator so its not the stat.This is a split gas/elect unit, and working on these for many years and looking at some of the solutions given, they are right.You need to be looking at the Furnace fan control.Units of that age they do tend to stick open and run constantly.I doubt its the fan relay, maybe if you were in the cooling mode.Fan controls are not that expensive. You probably have a Honeywell 7" to 11" Probe, with the auto/manual button, with a temp dial to set you're on off temps. I would inspect the heat exchanger for any signs of cracks or bulging being its that old. If you find any, you are looking at carbon monoxided and should be thinking about an upgrade soon.Also flame roll out.I am thinking of you're safety is all.If you do have this type of fan control, there is a tab that has to be cut before you install for 24v. control.It comes set for 120v. and will burn out all of your 24v. componants.Those old Bryants will run for years. Good Luck!
Posted on Nov 14, 2009
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