Question about Heating & Cooling
Can you remove the front cover to the wall unit? Look for the wiring and follow it till you see a round about the size of a fifty cent piece. Should have 3 of them. One of them is not closing and allowing the signal to go through. So turn up the t-stat to call for heat take each one of the limit switches and by pass them one by one till you find the one that is bad. Depending on where you hit the cover is where I would look first. The limit's are rated by temperature so replace with correct size. You should be able to see the temp. on the limit something like 180 is what you are looking for. Also make sure the wires are in good shape where they connect to the switches. Might have a loose connection. ken
Posted on Jan 03, 2009
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Posted on Jan 02, 2017
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