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Old 01-14-2012, 12:07 PM   #1
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Whisper Heater fan won't work Please Help

Hi I have a whisper Heater by Lennox SP745 I just replaced the ingnition board with 30W33 and it worked great for 3 days now the blower won't turn on. It heats up but no blower. What could I do to get the blower working again? PLLLLLEASE help it's cold! Thank You in advance!!

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Old 01-14-2012, 12:37 PM   #2
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Whisper Heater fan won't work Please Help

Originally Posted by Cornelio View Post
...I just replaced the ingnition board....
What could I do to get the blower working again?
The person qualified to do the board should have the manual, schematic
and testing tools needed to deal with the blower.

Some things to consider: motor windings continuity, start/run capacitor,
interlock control devices, connections in general. Assuming it was working before anyone messed with the ignition stuff... I'd focus on the connections and interlock devices first.


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