Chevrolet Suburban 1500 Problem Report

Chevrolet Suburban 1500 Improper HVAC Temperature and/or Air Delivery Due to Failed Mode Door Actuator

(66 reports)

One or more heater & AC (HVAC) air delivery and/or temperature mode door actuator may fail. This can result in incorrect air delivery or temperature. If this occurs, fault code(s) stored in the HVAC control module should be available to assist with diagnoses.

no heat from the front, but rear heat works great. -
Actuator door quit working and would only blow hot air on driver side and cool air on passagner side when in ac mode. -
Drivers side a/c switches to heat, while passenger side blows cold. Replaced drivers side door actuator, did not fix problem. Turning the a/c off then shutting off car and restarting will reset all doors and actuators, fixing the problem temporairly. -
had ac on and driver side started blowing extremely hot air -
A/C and heat not putting out right temperatures, actuator making sounds. Replaced acctuator -
is stuck on heat or cold seems to change when it wants to but not by the control assembly. -
Cooling only works on upper setting. The heater will only work when the car RPM are increased and will not heat the back vents at all. There is a continuing clicking sound coming from the dashboard. -
actuator reprogrammed and relaced left temp. valve. -
Heat coming out of drivers side and cool from left side -
goes from cold to hot the door flips I replaced the door moter but it still does it -
replaced door actuator -
Drivers side randomly switches to heat . Can be reset by shutting it off and restarting. -
When driving in summer with air conditioning on, suddenly the driver's side switches to full HEAT. Stop the car and restart and the problem usually goes away. -
Occasionally hot air would start blowing on driver's side, but nowhere else. Stopping and restarting engine would fix it. This happened about twice to four times a month, until the alternator went out, and now it does it full time. This is the first day and after doing some research tonight I plan to disconnect the battery tomorrow to reset the door blend actuator and see what happens. But I haven't seen anyone else mention an alternator replacement being the trigger for this, and I want to educate myself before a mechanic potentially decides I need a new compressor. -
No heat but defroster works fine. -
I have this issue, not fixed yet. -
AC blows hot in front and cold in rear. Heat stuck in defrost mode. Cannot change location of air in heat mode to floor or face. -
For some time now, I get heat on the driver's side and cold air on the passenger side. I would like to know how to do this repair. -
Ive paid alot and still have no heat then i find out its because of the door. it still isnt fixed winter in michigan isnt fun -
Rear air blows only warm air. Trying to find out if there is only one actuator per vehicle. -
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