The in-car heater fan squeaks slightly at low speed, I am assuming it's become loose on the motor shaft.

 

How does it attach to the shaft ?

 

Can I tighten up whatever has come loose - and is it fairly simple to do ?

 

Thanks in anticipation.

 

DB.

Would also like to know as mine does this sometimes

More likely to be the motor squeaking than the fan coming loose.

Should be large carbon built-up on axle's collector side... Dismantle cpl.fan, take out motor from housing, clean with compressed air, spray wd40 or smth better on shaft (collector side and blade's side- as far as can reach with spray tube under fan blades). For one year should be silent. Trick is to get out motor from it's housing- be careful with wires and plug.

On ‎2017‎.‎11‎.‎12‎. at 13:47, mogwye said:

The in-car heater fan squeaks slightly at low speed, I am assuming it's become loose on the motor shaft.

 

How does it attach to the shaft ?

 

Can I tighten up whatever has come loose - and is it fairly simple to do ?

 

Thanks in anticipation.

 

DB.

 

Plastic blade (pre-balanced and dirty after many years :-) is pressed on shaft- in theory, it can't become loose. Motor sits in plastic housing, through elastic inserts.

Indars - Thanks for the info.

 

DB.