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Posted by jamesgangnc on January 29, 2008, 8:12 am
You don't fix these things with wholesale parts replacement. Who knows
what's wrong with it now. You wired it incorrectly? The others are right,
you could of had a new one for the work you put into this one. Most of those
parts have nothing to do with the fan.
What was wrong with the prior motors? Shorted? Open? Are you getting a
good solid 115v to the fan motor? With a load on it? If you suspect the
supply you should be able to make the fan run independently of the rest of
the unit with a known good 115v.
> The GE furnace is a model BLU055E936.
>
> Problem: The blower motor hums and if I don't turn it off immediately,
> it would burn up. I know this because this is the 3rd motor this
> winter. The motor will get up to speed if you secure the service door
> switch and wait for that moment when it just starts to hum and then
> give it a push start with your hand. The blower motor won't come on
> even when the fan is selected on the thermostat.
>
> Attempted Fixes:
> Everything electrical and mechanical has been replaced, which
> includes:
> Motor, Capacitor, Relay, Transformer, Limit Switch, Thermal Coupler,
> Gas Valve, Fusible Link, Thermostat and all low voltage and hi voltage
> wiring. All of the parts were ordered using the information on the
> furnace. The wiring was rewired using a schematic for this unit. The
> breakers and wiring where the power enters the house has be cleaned up
> and new breakers installed.
> We have even had an HVAC Technician come over and he was unable to
> figure it out.
>
> Is there anyone out there that can shed some light on a possible fix?
>
> Thank you very much in advance.
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