New noise coming from my stove - fan

[md2002]

Well I fixed the auger noise, by replacing the auger motor, and now I have a new noise. It's my fan. I cleaned it and oiled it a bit as much as I could. Are there any ideas of what to try or is replacing the only option. It's not that old, if I had to guess I would say 5 - 7 years old as I've already replaced it once since I had the stove. I would just think it would have lasted longer. The stove is an enviro Milan

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[Whitenuckler]

Can you take it apart to get at the actual blower fins? If the bearings are OK, and the motor OK, then it must be dirt causing out-of-balance

 

[md2002]

I tried that, cleaned it real well with a can of air but still making noise in the stove. I'm going to jerry rig a connection and plug it in outside the stove and try to pinpoint where the noise is coming from while it's spinning on the workbench.

 

[Whitenuckler]

I tried that, cleaned it real well with a can of air but still making noise in the stove. I'm going to jerry rig a connection and plug it in outside the stove and try to pinpoint where the noise is coming from while it's spinning on the workbench.

I assume that is the combustion fan. If so, they have a hard life and the bearing could be bad. It didn't sound too bad to me, but there was some weird sound toward the end...maybe it was you? It may test OK on the bench without being mounted? I would be interested in what you find. Mine stove is almost brand new, but I do have a spare combustion blower motor and fan blade ready to go.

 

[Ssyko]

Is the chamber where the blower goes cleaned out also?

 

[md2002]

The chamber is cleaned out, yes. I'll let you know how the test on the bench goes. I'll get to it tonight after work.

 

[md2002]

I'm stumped. Cleaned the stove and the fan. It only makes noise inside the stove.

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Outside the stove it runs pretty quite.

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[johneh]

Did you replace the gasket?

 

[Whitenuckler]

You will have to get another new fan. Sometimes you can only narrow the problem down to the part. If you put a new part in, and it fixes the problem, then you may never know what exactly is was wrong with the part. If it does not fix the problem, then that means it is something else not that part. Will not hurt to have a spare anyway. I hope they are not expensive?

 

[Whitenuckler]

I'm stumped. Cleaned the stove and the fan. It only makes noise inside the stove.

New video by MD2002

photos.app.goo.gl

Outside the stove it runs pretty quite.

New video by MD2002

photos.app.goo.gl

That is the problem bench testing parts with noise and vibration issues. It is not operating it it's normal environment. It is not mounted to the stove, and the fan loading as not normal.

 

[md2002]

I think it's the part, unfortunately. I removed all the guts of the stove to remove any chance of something in the stove causing the noise, changed the gasket, and scraped the chamber with a wire brush, then cleaned it with a wet cloth and still no luck. I decided to add more oil, probably more than I should have. After adding more oil it seems to have gotten better but it still seems louder than it was. I'll have to keep an eye on it, if it comes back, time for a new part. Lots of parts getting replaced this year.

 

[Whitenuckler]

I think it's the part, unfortunately. I removed all the guts of the stove to remove any chance of something in the stove causing the noise, changed the gasket, and scraped the chamber with a wire brush, then cleaned it with a wet cloth and still no luck. I decided to add more oil, probably more than I should have. After adding more oil it seems to have gotten better but it still seems louder than it was. I'll have to keep an eye on it, if it comes back, time for a new part. Lots of parts getting replaced this year.

Oil really should only be added to bronze bushing type bearings that have the sponge pad. If it a sealed ball bearing forget it. Replace the bearing.

 

[stovelark]

5-7 years of normal burning (2-3 tons a season) is pretty good service. Cleaning the motors and their fins are very important for the Empress/Milans, well for any pellet stove. If you do get an extra blower, most likely you can have the old noisier one for an emergency. Pellet stove parts are nice to have, buy when you can, versus when you have to have. Enviro parts tend to be a bit more expensive too, but an exhaust blower, convection blower, ignitor and a POF switch are nice parts to have on hand... Stay warm.