Harman p43 grumbling noise - video attached

[NotSure]

My P43 makes a sort of grumbling/grinding noise when the blower kicks up to higher speeds. Listen to attached video. Is this something I need to lubricate or am I looking at replacing something here? Any tips would be appreciated. Bonus points if you could link me to the part. Hoping to resolve this over the summer before next season.

Seems to blow air just fine I just dont like listeneing to it.

 

[NotSure]

My P43 makes a sort of grumbling/grinding noise when the blower kicks up to higher speeds. Listen to attached video. Is this something I need to lubricate or am I looking at replacing something here? Any tips would be appreciated. Bonus points if you could link me to the part. Hoping to resolve this over the summer before next season.

Seems to blow air just fine I just dont like listeneing to it.

Dont think my video worked trying again here

My P43 makes a sort of grumbling/grinding noise when the blower kicks up to higher speeds. Listen to attached video. Is this something I need to lubricate or am I looking at replacing something here? Any tips would be appreciated. Bonus points if you could link me to the part. Hoping to resolve this over the summer before next season.

Seems to blow air just fine I just dont like listeneing to it.

Dont think my video worked. Try the link here: (broken link removed to http://tinypic.com/r/i3c21k/9)

 

[GeHmTS]

Can you isolate where the grumbling noise is occurring? It might something is loose or the glue joining two pieces has failed.