Why does my car have dual zone heat?
Likely you have a bad blend door on the passenger side. With dual zone A/C and heat, you have extra mode doors, and blend doors, that force the proper temperature air into the proper vents. When these fail (often), your situation is replicated.
Can a GMC Sierra have dual climate control?
My GMC had dual climate control and once in a while would blow cold and then the heater would kick on both driver and passenger side. To fix this I use to have to turn off and then back on to reset it … read more 97 Corvette coupe automatic dual climate control. AC blows warm on driver”s side and blows cold on passenger side.
Where is the dual climate control unit on a Chevy Silverado?
It fixed itself once (ha ha) but I turned the temp adjuster up on the driver”s side … read more 2004 Chevrolet Silverado Crew Cab w/5.3 L Dual climate zone control unit blows cold ac on passenger side and hot air on driver side and rear When the A/C is on.
Why is my dual zone AC not working?
Dual zone systems in particular, when the refrigerant is low may blow cold on the right side since it is closer to the evaporator and not as cold on the driver’s side. If there is any doubt, recover the refrigerant with an AC machine then evacuate and recharge the system with the correct amount…
Likely you have a bad blend door on the passenger side. With dual zone A/C and heat, you have extra mode doors, and blend doors, that force the proper temperature air into the proper vents. When these fail (often), your situation is replicated.
Dual zone systems in particular, when the refrigerant is low may blow cold on the right side since it is closer to the evaporator and not as cold on the driver’s side. If there is any doubt, recover the refrigerant with an AC machine then evacuate and recharge the system with the correct amount…
What causes dual zone AC on Jeep Grand Cherokee?
Jeep Grand Cherokees with dual climate control (for the AC / Heater system) that have incorrect air temperature blowing on either the passenger or driver’s side is usually one of two things. One of the blend door actuators (motors), or the the dual zone blend door assembly could have a broken door.
How to diagnose blows cold one side, hot on other side?
So your first step in diagnosing a blows cold one side, hot on other side condition is to operate each temperature control to see which side changes temperature. The actuator that changes temperature is good, the actuator that doesn’t is bad. This test also proves out the HVAC controller.