The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.
Average mileage: 114,023 (1,000–345,000)
178 people reported this problem
The blower for the back of the vehicle is stuck on and is blowing hot air. It will not turn off and it won't blow cold air. Also, The blower level 5 in the front part stopped working. The air conditioning is not working in the front either.
Blower was not working on 3, 4, 5, fixed it now it is not working on 5 at all and 4 sometimes.
2007 GMC Envoy Denali
Blower remains on high, even when car is turned off, no other speeds will operate. When fuse is pulled, only then will the motor shut down.
My blower motor continued to run after the engine was shut off and key removed , now the blower won't do anything is it the relay or resister ? still not fixed the weather not cold my research tells me its mainly in cold weather thanks