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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: buick on May 28, 2018, 10:46:38 am

Title: heater blower mtr
Post by: buick on May 28, 2018, 10:46:38 am

in stalled new blower mtr,non a/c,truck never had a blower with a cooling tube on it,now it runs gets hot,blows fuse,3rd motor,all electrical checks out,happen to anyone else?

Title: Re: heater blower mtr
Post by: Ronno6 on May 28, 2018, 09:06:55 pm

Does the blower move air out the vents?
If the intake or discharge to/from the blower wheel is restricted or blocked off, the
motor will not incur the load of air movement and will over rev and overheat.
This will cause the fuse to ultimately blow.....