Question about Honeywell Electronic Programmable Heat/Cool Thermostat - CT3300A100 Heater

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Banging noise when motor turns off

I've had the system for a year and a half, and until recently, it worked fine. Now I sometimes hear a banging noise when the unit stops running. Otherwise, it's fine.

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  • 308 Answers

Have you replaced your air filter recently? Often this is a symptom of a restricted return. The blower almost causes a vacuum in the duct work, and when the system shuts down the duct "pop" back out, causing this banging noise. Hope this helps

Posted on Feb 05, 2010

Testimonial: "We changed the filter, and the banging is gone. Thank you!"

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6ya6ya
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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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