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73-87 Chevy _ GMC Trucks => 73-87 Chevy & GMC Trucks => Topic started by: 73customC10 on January 31, 2007, 07:32:00 pm

Title: blower motor??
Post by: 73customC10 on January 31, 2007, 07:32:00 pm
my blower motor stays on low and wont turn off. it also wont go higher.?? how do i turn it off. thanks

Title: Re: blower motor??
Post by: Lt.Del on January 31, 2007, 08:04:00 pm
'taint gonna turn off all the way.  To keep the pressure inside the cab from getting too high, the blower motor is designed to always be on.

As far as not being able to adjust the speed of the motor, your switch may be bad.

SgtDel
aka "Andy"

www.delbridge.net

1979 Big 10 383 stroker
1991 Blu 'Burb 3/4 ton 4x4

Title: Re: blower motor??
Post by: VileZambonie on January 31, 2007, 09:15:00 pm
Is the truck AC equipped? Check the Rheostat.

The blower fan circuit is designed to run on low speed to prevent mold from growing in the heater box. Any time the key is on the motor is on.

Title: Re: blower motor??
Post by: 73customC10 on February 01, 2007, 08:55:00 am
it had ac but i took it out. but thanks i get what you guys are talkin about

Title: Re: blower motor??
Post by: Fast68 on March 15, 2007, 03:42:00 am
they dont shut off completely if its not factory a/c delete

there is no off position with a/c panel fan switch

good luck

Title: Re: blower motor??
Post by: 75 C20 on March 15, 2007, 04:12:00 pm
Quote:
The blower fan circuit is designed to run on low speed to prevent mold from growing in the heater box. Any time the key is on the motor is on.
Quote:
To keep the pressure inside the cab from getting too high, the blower motor is designed to always be on.

i put a switch on mine so i can turn my blower off- will that hurt ne thing- it gets annoying with it always blowing:\