electric furnace(moble home)
This furnace will not shut off in auto,it has to shut off manually..any ideas to what's causing this..
With a voltmeter and the color codes
you can isolate the problem to the 'stat or the furnace, with one reading.
If the problem turns out to be in the furnace, post the schematic, wiring and/or ladder diagram.
I've changed everything but the t-stat,fan still wont shut off..
A temporary fix for this involves the mixing together of 1 part rum and 3 parts Coca Cola. :D
The root problem may not be in the furnace after all, it could be a power quality problem causing a failure in the furnace.
In a properly designed and built unit all parts are equally likely to fail. If not, there may be a factory-published Technical Service Bulletin detailing the design defect and the recommended fix.
-Educated guess (you might get lucky) or
-Uneducated guess (may be costly and it still isn't fixed) or
-you take a reading, decide what it means on the spot and proceed from there (reduces uncertainty in deciding what the problem is), or
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