PDVC vibtrating / metal grinding noise

[chrisasst]

Well, what is going on here. My pdvc is making a noise. The only thing I can describe it as is metal vibrating or maybe the sound of someone grinding metal in a shop. It is a very faint noise, not loud or anything. It maybe my imagination, but the blower seems to sound like it is not blowing as fast as it usually does (9) . I did a cleaning a few weeks ago.
Any ideas?

 

[slvrblkk]

Does the noise change with a change in convection blower speed change?

 

[chrisasst]

no,
it actually sounds like it is coming from the exhaust side.

 

[slvrblkk]

might be on of the bearings in the combustion blower......I know you just cleaned it but you can try lubing it but I don't think those motors have oil ports on them.....does it sound sort of like a dremel tool running but faint?

 

[chrisasst]

might be on of the bearings in the combustion blower......I know you just cleaned it but you can try lubing it but I don't think those motors have oil ports on them.....does it sound sort of like a dremel tool running but faint?

yeah, a little bit.
dang, only had the stove a year. Really can't afford to put $ into right now.

 

[slvrblkk]

Is it still under warranty? Even though I think the bearings are sealed, you could try putting a few drops of oil on it and see what happens. I think they (forum members) said 20 weight synthetic but maybe someone else can chime in on that.

 

[imacman]

Is it still under warranty? Even though I think the bearings are sealed, you could try putting a few drops of oil on it and see what happens. I think they (forum members) said 20 weight synthetic but maybe someone else can chime in on that.

Any 20w non-detergent oil will work....like 3 in 1. Try putting a few drops on the end of the bearings and see if it will "wick" it's way in while running.

If you have a spare comb. blower gasket, I'd remove it from the stove and run it using a "test" power cord....if the noise is there, you'll be able to pinpoint it (and easier to try lubing it too).

If noise disappears, it might be something loose or hitting while it's installed.

 

[smoke show]

My old 2001 was rattling some from the comb blower area.

Retorqued the comb blower nuts and it solved the problem.

 

[rich2500]

my pdvc was doing the same thing a few weeks ago replaced exhaust blower and it's fine now

 

[chrisasst]

Is my stove save to run with a bad combustion blower? The noise is getting louder at times and now it makes a power surging noise I guess I would call it.
Waiting to see if it is still under warranty. ( bought last February)

 

[HD41]

Is my stove save to run with a bad combustion blower? The noise is getting louder at times and now it makes a power surging noise I guess I would call it.
Waiting to see if it is still under warranty. ( bought last February)

If the blower stops the vacuum is lost and the switch will stop the feed of pellets allowing the stove to shutdown. This is actually a better shutdown than occurs during a power failure because the room air blower continues to run until the stove cools. I have not experienced a power failure shutdown but a natural draft remains although I suspect there may be some smoke.

 

[tancon]

Had the same problem a year ago, called customer service and they said to spray a little WD-40 into the center bearing area of the blower. It worked great and every time I get this noise I spray a little WD-40 and it is quiet.