"Ed" wrote in message
news:EDM2c.101332$A12.38409@edtnps84...
Hi all, I'm a newbie at troubleshooting furnace problems, so please bear
with me........

I've got a home gas furnace that's failing to consistently turn on when it
is supposed to. Here's what I've done so far:
1) Checked circuit breaker for Furnace - OK
2) Reset the furnace by following the instructions inside the furnace to
turn it off & on - Done
3) Checked thermostat - OK. Removed thermostat and manually jumped the
two
wires to make sure that furnace is turned on. Nothing happens to the
furnace.
4) If I hit the exhaust(??) blower - not the main blower that blows warm
air through the house, but the one by the flue pipe - the blower will
start
to spin and in turn lights up the igniter. I'm not sure how this blower
has
anything to do with the electronic ignition system, but this blower unit
must work before the igniter lights up. I should also note that this
blower
unit has been squealing over the last while when it first starts up but I
didn't think much of it.
5) Once I get the unit up and running by tapping the blower, it may
continue to work fine for another half a day or so.
6) When it stops working, I have to repeat step 4 again. Seems like its
going to fail for good soon.

I hope this makes sense. Can anybody please tell me what the problem
might
be?? and what can I do to fix it?

Thanks,

Ed



Man..its already failed. I dont know where you are at, but you need to call
a qualified repair tech out, and allow them to replace the unit thats
failed, and insure that you have not done some damage to anything by
allowing the unit to run with a bad motor, motor control, or such. That is
called an inducer motor, and it is there for a reason. It has at least 3
safety devices connected to it, and its possible that one has failed in a
manner that the shock of hitting it is allowing it to "run fine for a day or
so..."
You need to stop poking around, and get someone that understands how these
work out there to check out the unit. Its not going to be cheap if you get
someone that has a clue, but you will find its cheaper than creating a
condition that just might be deadly, or, at the very least, harmful to you
or your family.
There is a damn good reason why there is warnings on those units that tell
you not to muck around with them unless you are qualified, and its obvious
you are not.
You will want to insure that the person working on your unit is licenced, if
thats required in your area, and insured. ASK for the proof of insurance.