I've developed what I think is a singing bearing in my blower fan. Sounds like feedback from a microphone and is intermittent. Goes from a high pitched piercing squeal, to just a low whirring sound. Just seeking any pointers and wisdom from anyone who's replaced this in the past. Let me know your thoughts, what you found out when you went through this project. I've had this stove for a long time, and this is my first real issue with it. I have to replace this though, it's like sitting front row at a Jimi Hendrix concert with the feedback cranked when it really gets going...Any input would be greatly appreciated!! Thank you!
Harman Accentra singing blower bearing
- Thread starter Iburnslow
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Thanks for the tip on the YouTube idea. I'll do some 'searching'. I was just going to add to my post; I'm not sure which blower is 'singing'? I'm not sure how to determine that? I guess I should simply replace both to be safe. I've had the stove for 15 years, so it's probably worth the time to replace both.
The distribution (room air) blower turns on/off depending on the need for heat. The combustion blower pushes air thru the burn pot and the vent pipe and runs continuously. When the stove is burning you can turn the temp dial down and the distribution blower will turn off.
That certainly sounds like the distribution blower. I replaced mine years ago. It's easy if you're a DIYer. Here's a thread with my experience: https://www.hearth.com/talk/threads/harman-accentra-freestanding-distribution-blower-stuck.119024/
You cant get bolt cutters in there. The motor is in a recess in the back. I use a oscillating saw w/ a carbide tooth blade and plunge right down the center of the shaft/collar. Takes just seconds to split it. The carbide blades are maybe $10 each. I have cut several fan shafts, Used it for a prefab fire box tear out to start cuts in sheet metal and other stuff. Teeth still look decent. It is such a versatile tool.
Hate to be a "downer" but the noise is most likely to return. Being 15 years old think you are due for some part replacements....or like many here stock backup parts..
Or some 3-1 oil for the bearings.... 15 years in a hostile environment with no oil = shot.
The 'singing will return, most like along with a non turning fan when it finally locks up....
I tend to use my Hypertherm for cutting and/or a thin cut abrasive disc in a die grinder. Don't own a reciprocating saw.
Its a oscillating saw. Not a sawzall type saw. Like this. I doubt I would want to be wielding a Hypertherm in someone's living room!
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On a side note, this is a handy way to dry growlersDon't have one of those either.... No need, no Harman.....
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