Range hood fan blades hit filter

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Topic: Range hood fan blades hit filter (Read 156 times) previous topic - next topic

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Range hood fan blades hit filter

November 30, 2019, 07:50:14 am

Checking everything out as we just bought this less than a week ago.
There seems to be no clearance between the fan blades and the filter. The fan won't spin with the filter in place. I am thinking there is something missing, something that is supposed to mount between them.

Re: Range hood fan blades hit filter

Reply #1 – November 30, 2019, 10:29:15 am

Typically, this means either the blade has shifted to the wrong place on the shaft, or the motor shaft is protruding too much because a shim inside is missing. Check also if there was some modification made that is causing the issue. Never ran into this with either our '83 or our '04.

Steve

Re: Range hood fan blades hit filter

Reply #2 – November 30, 2019, 11:01:47 am

Looking at mine, though it was my first thought, it's hard to see that there's enough extra shaft on the motor for the blade to just not be on far enough. My guess would be that because of a remove & replace, the blade was installed 'upside down'. These fans have curved blades, with a steeper pitch at the blade tip, which could hit the filter if in wrong. An easy test would be to remove the filter and turn on the fan. If it seems to be pushing air down towards the stove rather than pulling it into the hood, the blade's in wrong.

Re: Range hood fan blades hit filter

Reply #3 – November 30, 2019, 11:11:35 am

Not sure if this picture will show much. It looks like the brackets are bent too much.

Re: Range hood fan blades hit filter

Reply #4 – November 30, 2019, 12:32:35 pm

Here is a pic of the fan in out '04, which does NOT rub:

Steve

Re: Range hood fan blades hit filter

Reply #5 – November 30, 2019, 01:05:46 pm

Could the air motion be sucking the filter up into the fan blades? I don't remember the details. I do have a '99 TK. RonB

Re: Range hood fan blades hit filter

Reply #6 – November 30, 2019, 04:36:36 pm

The metal brackets were bent downwards. I was able to straighten them out.

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