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73-87 Chevy _ GMC Trucks => Interior & Equipment => Heating, Ventilation & Air Conditioning (HVAC) => Topic started by: the_legend_1981 on February 11, 2008, 07:59:23 pm

Title: heater controls
Post by: the_legend_1981 on February 11, 2008, 07:59:23 pm

So i put a new blower it. It works but the heater controls are all messed up.  It just works on high and when i shut the heat off on the horizontal switch the blower still works...anyone have this problem?

Title: Re: heater controls
Post by: VileZambonie on February 11, 2008, 08:08:05 pm

What are your heater control switch positions from left to right?

The blower fan will always run with the key on

Title: Re: heater controls
Post by: the_legend_1981 on February 12, 2008, 01:56:55 pm

Off......Heat.....Defrost

Title: Re: heater controls
Post by: 76_Scottsdale on February 12, 2008, 04:31:35 pm

The blower motor never actually goes all the way off. You only have low, med and hi so it's always pushing air a little even on low. I usually keep my selector to either heat or def so that the blower is trying to pushed air into a sealed system.