Noisy Englander 25-PDV solved

[drivfour]

After trying all the previous fixes I found on this great site, my combustion blower was still incredibly loud.
I noticed that slightly touching the black housing would quiet it down, removing some harmonics. I had previously restaked the areas between the black motor casing and the front frame, but then after removing the motor, noticed slight movement between the black motor case and front frame again. I put a dab of "great stuff" similar to high temp automotive silicone gasket sealant on each one of the staked areas. The fan is now almost silent!Hard to believe such a small movement in this area could result in such noise. I also put a few dabs of sealer between the gasket and fan assembly.

 

[Lake Girl]

So high temp silicone provides enough of a buffer to stop the harmonics?

 

[Don2222]

Hello
The case is held on by crimping the metal. The best way is to take a hammer and screw driver and bang the crimps to make them tight, then add the sealant.
A better way to fix, is to upgrade to an open frame exhaust blower that Emviros and Harmans use for their exhaust blowers.

 

[drivfour]

So high temp silicone provides enough of a buffer to stop the harmonics?

yes- after restaking it came loose again. so I just tried the silicone- there is only a small amount of play but as I said made a huge difference. you do not have to remove blower- you can add sealant in place.

 

[Sammcat00]

Hello
The case is held on by crimping the metal. The best way is to take a hammer and screw driver and bang the crimps to make them tight, then add the sealant.
A better way to fix, is to upgrade to an open frame exhaust blower that Emviros and Harmans use for their exhaust blowers.

Do you have a model number that would work on the 25-PDV?

 

[Don2222]

Do you have a model number that would work on the 25-PDV?

I put in 2 new OEM blowers in a 25-PDV and the owner could not sleep from the high pitched whine. So I put in a PP7610 and problem resolved!

 

[BrotherBart]

I put in 2 new OEM blowers in a 25-PDV and the owner could not sleep from the high pitched wine. So I put in a PP7610 and problem resolved!

Merlot will do that.

 

[Don2222]

Merlot will do that.

True, but some good ole Black Label on the rocks will put that to bed.

 

[SmokeyTheBear]

I'd go with a different Scotch.

 

[Bob Sorjanen]

Glenfiddich

 

[jim3854]

I put in 2 new OEM blowers in a 25-PDV and the owner could not sleep from the high pitched whine. So I put in a PP7610 and problem resolved!

will a pp7610 work in a 25 pdv englander ? I looked it up and it doesnt list englanders for that motor

 

[Sammcat00]

will a pp7610 work in a 25 pdv englander ? I looked it up and it doesnt list englanders for that motor

just put one in. I had to swap the connectors out but so far quiet and working fine.

 

[Don2222]

X2, they are open frame motors with no case to rattle, I like the higher current longer life Gleason Avery exhaust blowers that stand steadier at the low heat levels.
Just google
Englander Low Drafter Kit