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gitterdone

Have a coleman furnace eb12b

4 posts in this topic

Seems it is getting louder when it cuts off. Blower motor that is.

I know they make some noise when cuts off..

But seems it thumps hard here latley.

Reply much appreciated.

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Need appliance parts? Call 877-803-7957 now!

Never mind... either duct work exspanding when blower is on..turs off thump duct work/plenum settles back.

Or lower speed switch is bad. Fan cuts off on high.

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It's probably your return plenum sucking in from the vacuum and popping back out when the blower stops. Try putting a heavy box or a few bricks on top of the plenum. Also make sure your filter isn't getting stopped up. A dirty filter will create even more vacuum.

I've also seen loose fitting filters in ceiling grills rise up and then drop when the blower stops.

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Thanks man.for the reply...Filter alway checked...going to look at plenum ..might need a few screws ect.

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