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Furnace Blower Replacement


waiter

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OK confusion on my part. One post you said the motor started and ran for 3 min, then slowed down and stopped.  Then you said it squealed and then ran for 5 min.. Have you ran it multiple times?? or what is it doing.

First is bad fan motor/weak battery. Second is bad fan motor

Most of the contacts are sealed. But the ground is usually a screw some where to the chassis and the positive is a bolt connector. Find them and redo them. A voltmeter is real handy about this point, it will let you check the voltages through out the entire system and make it all good. Point being when I got my Escaper the isolator voltage was 14v + , the house battery voltage was under 11.5v. The P/O had spliced wire to many places and did a poor job. Replace all the battery charge wire mess and ended up wilt 13.8v at the battery.

Low voltage will make a heater run bad or not at all.

 

 

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