Oil furnace fan limit switch

Posted by Stonerbud on November 20, 2006, 10:24 pm

I just replaced a limit switch and within 12 hours it has stopped working(
the fan will not kick on once the thermostat has called for heat even though
the burners kick on). What am I missing that I should be looking for.

Thank you
Stonebud

Posted by Stormin Mormon on November 20, 2006, 10:45 pm

Is the limit switch getting power? Is it supplying that power to the
fan? Is the heat exchanger getting hot?

One service call I had this year, the blower motor had gone defective.
So, it may be a good limit switch but a burnt out motor.

Good luck, and please let us know how things work out.

--

Christopher A. Young
You can't shout down a troll.
You have to starve them.
.

I just replaced a limit switch and within 12 hours it has stopped
working(
the fan will not kick on once the thermostat has called for heat even
though
the burners kick on). What am I missing that I should be looking for.

Thank you
Stonebud

Posted by Noon-Air on November 20, 2006, 11:11 pm

>I just replaced a limit switch and within 12 hours it has stopped
>working( the fan will not kick on once the thermostat has called for heat
>even though the burners kick on). What am I missing that I should be
>looking for.

A local tech in the yellow pages

Posted by Steve Scott on November 20, 2006, 11:59 pm

Maybe it's not the limit switch.

On Tue, 21 Nov 2006 03:24:23 +0000 (UTC), "Stonerbud"

>I just replaced a limit switch and within 12 hours it has stopped working(
>the fan will not kick on once the thermostat has called for heat even though
>the burners kick on). What am I missing that I should be looking for.
>Thank you
>Stonebud

--
D.A.D.D. - Daddies Against Dirty Diapers

Posted by -Hate-Me on November 21, 2006, 5:18 am

A clue?

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