could someone help me with my home gas furnace. The problem is the
heat doesn't run when i turn it to "auto", but it runs good when i turn
it on. At first i thought it was the thermalstat meter, so i replaced
with the new digital one, but that is not the problem....so could
someone direct me where to find the problem.....thank you very much.
Right. Use a volt meter to see that your transformer is supply the
required 24 volts AC that is needed. Then get down by the relay that
the thermostat activates. Install a clip lead that acts the same as the
thermostat turning on. Does the system respond correctly?
Keep on following the chain....
Could you be more specific? Is that to say that your furnace appears
to be working fine when you have the thermostat set to "heat" and the
temperature above room temp?
And that your furnace isn't kicking on if you hvae the thermostat set
Logical thought since clearly the furnace itself seems to be doing
it's thing if it's working okay on a different thermostat setting.
It's possible your curent thermostat is bad and that the new one you
bought is either mis-installed, or incompatible with your system, or
as another poster suggested, the supply voltage to the termostat isn't
right, could be cabling, could be lots of things.
How old is the furnace? YOu may be due for a clean and check on it
anyway, so I'd encourage ya to get the pro's out there to make sure
the furnace is not only working on auto, but running safely and
burning clean when it is on.
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