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-   -   Do I need a new inducer motor? (http://www.diychatroom.com/f17/do-i-need-new-inducer-motor-172819/)

drteeth 02-24-2013 11:11 AM

Do I need a new inducer motor?
 
For the past week or so, we were hearing a pretty horrid sound coming from the attic where the unit is located. To me it sounded like a motor was going bad. Well, the heating went out on Friday night after my kids went to bed. I'm pretty sure that the unit itself is pretty old, but have no idea of its age.

The unit has a LED light on the control board that blinks a pattern to show what is wrong with the unit. There were 3 blinks, which meant "Pressure switch failed to close." I found a discussing on this forum that said that one issue may be "reduced vent motor-turbine output" which made me think of that motor sound we had been hearing.

What the unit does when it tries to come on is make a hum for awhile and then give up. I found what I eventually learned was the inducer motor and realized it had a plastic wheel that I could spin. I turned the unit back on and when that hum started, I spun the wheel by hand. At first, it tried to spin up and then gave up. I gave it another spin and it made some horrible noises but eventually spun up enough that the process continued and the gas was lit. I figured that piece was the issue.

I took it off and inspected it and didn't see anything obvious. I found no way to get further into the piece to examine more closely. The plastic wheel does spin the inside gear but it seems restricted/doesn't spin as freely as I imagine it should.

So, do I need a new motor? Is that the issue or could it be something else. If it is indeed the issue, is there someway to fix it instead of purchasing a replacement?

Below is a picture of what the piece looks like. This particular picture is of a piece that can supposedly replace the one we have. Mine has a model number of jakel j238-112-11128. I've also provided a link to what I think the piece's replacement is.

Thanks for any advice or help you can provide.

http://www.electricmotorwarehouse.co...Fasco/A157.jpg

replacement link

beenthere 02-24-2013 11:19 AM

Needs to be replaced.

drteeth 02-24-2013 02:54 PM

Thanks for the response.

Would this replacement part be OK to get?

yuri 02-24-2013 03:08 PM

probably but it is 3000 rpm and U need to make sure the one U got is 3000 and not higher. I have seen these aftermarket ones sometimes be slower and not work properly or as well as the OEM ones. should be a sticker on the side of the actual motor which has the rpms and can be difficult to read.

drteeth 02-24-2013 03:14 PM

Quote:

Originally Posted by yuri (Post 1123961)
probably but it is 3000 rpm and U need to make sure the one U got is 3000 and not higher. I have seen these aftermarket ones sometimes be slower and not work properly or as well as the OEM ones. should be a sticker on the side of the actual motor which has the rpms and can be difficult to read.

It does say 3000 rpm on the sticker on the one that came off the unit. Thanks!

jagans 02-24-2013 03:31 PM

what exactly does "The plastic wheel does spin the inside gear but it seems restricted/doesn't spin as freely as I imagine it should." What Gear?

Are you referring to the squirrel cage blower wheel? What Gear?

Thanks

how 02-24-2013 04:18 PM

Couple of thoughts...
Check if that motor has a capacitor. If so, change that with one with the identical rating first (they're cheap).
If not ..
Consider changing the whole Inducermotor/blower assy. instead. Some of them are pretty cheap.

beenthere 02-24-2013 04:27 PM

The bearings are going out in it.

jagans 02-24-2013 09:18 PM

What a world we live in. we now throw out a housing, a good motor, and a blower wheel instead of simply replacing a couple of bronze bushings. Yeah, we are really going green......................................BS :eek:

By the way thanks for the explanation of "Gear"

drteeth 02-24-2013 09:48 PM

Quote:

Originally Posted by jagans (Post 1123975)
what exactly does "The plastic wheel does spin the inside gear but it seems restricted/doesn't spin as freely as I imagine it should." What Gear?

Are you referring to the squirrel cage blower wheel? What Gear?

Thanks

That sounds right -- the squirrel cage blower wheel. I'm not familiar with the terminology, sorry.

drteeth 02-24-2013 09:54 PM

Quote:

Originally Posted by jagans (Post 1124182)
we now throw out a housing, a good motor, and a blower wheel instead of simply replacing a couple of bronze bushings.

Are you suggesting that I might be able to repair the one I have? If so, I'd love to hear some thoughts on how. I couldn't even figure out a way to further take apart the housing -- no screws or anything.

Can you elaborate, please?

beenthere 02-24-2013 10:00 PM

non rebuild-able. get a new one.

Hardway 02-24-2013 10:08 PM

I just replaced the one on my furnance yesterday.

Hardway 02-24-2013 10:12 PM

Quote:

Originally Posted by Hardway (Post 1124223)
I just replaced the one on my furnance yesterday.

Don't forget to make sure new cap is included if not order one.

Marty S. 02-25-2013 07:13 AM

Make sure the new one comes with the gasket too.


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