Blower is clanging on cold start

[bmxin]

Hello just thought I'd check the resources here to see if I can salvage blower...

Basically on cold start there is clanging noise (bearing?) coming from the blower after about 15mins when it's hot enough goes away. Throughout this there hasn't been a performance dip. 250 hours on Aeon Oil, site glass is center filled

My plan was to disconnect and take out and perhaps get a 3D view from Legend and inspect.the cog/belt to see just how bad this is

Aside from ordering a new blower
Are there other protocols?

Thank you

 

[BIG WOOD]

My first check would be the belts to be certain there’s no belt slapping
It has the same noise that you’re hearing. And the noise going away after it warms up tells me that the belts are grabbing the pulleys better and not slapping anymore

 

[FredBoyle]

Belts are a good place to start but I’ve experienced the harmonic rattling caused by belt slippage when the blower is under load not on startup

I assume you have done a thorough hot water flush of the blower lobes

 

[Mike Pailliotet]

Hello just thought I'd check the resources here to see if I can salvage blower...

Basically on cold start there is clanging noise (bearing?) coming from the blower after about 15mins when it's hot enough goes away. Throughout this there hasn't been a performance dip. 250 hours on Aeon Oil, site glass is center filled

My plan was to disconnect and take out and perhaps get a 3D view from Legend and inspect.the cog/belt to see just how bad this is

Aside from ordering a new blower
Are there other protocols?

Thank you

what unit?