Why is my heat control knob not working?
The most common cause of the problem you are having is most likely low coolant (see symptom chart below), if the coolant level is full and there are no leaks in the system, you may have a defective Temperature Blend Door Actuator (which is also very common on this vehicle), unfortunately there are no fuses to check or replace.
Is there a fuse that controls the heat control knob?
The heat control knob will not change the temp. from cold to heat. Is there a fuse that controls this feature and if so which one? Hi JACUSTOMER-jw131c0m-. Thank you for asking your question on JustAnswer.
How do you remove a climate control knob?
The solution isn’t really difficult. It’ll take about an hour and a half. You have to remove the radio/climate control faceplate, then disconnect and remove the climate control unit. Disassemble it all the way down to the circuit board. There, the temp control knob will have 3 pins that go all the way through the board.
What to do if your heater does not turn on?
Remove the plug from the heater control valve end of the hose. Connect a vacuum pump to the function selector switch vacuum harness connector and try to pull a vacuum. If the pump can pull and hold a vacuum, the hose is plugged. If the pump pulls a vacuum that slowly decays, the hose is restricted.
The most common cause of the problem you are having is most likely low coolant (see symptom chart below), if the coolant level is full and there are no leaks in the system, you may have a defective Temperature Blend Door Actuator (which is also very common on this vehicle), unfortunately there are no fuses to check or replace.
The heat control knob will not change the temp. from cold to heat. Is there a fuse that controls this feature and if so which one? Hi JACUSTOMER-jw131c0m-. Thank you for asking your question on JustAnswer.
What should the resistance be on the heat control knob?
If Fuse 10 (7.5A) opens again, REPLACE the powertrain control module. TEST the system for normal operation. Measure the resistance between the function selector switch connector Pin C234-4, Circuit 1003 (GY/Y) and ground. Is the resistance reading 10,000 ohms or less? Yes REPAIR Circuit 1003 (GY/Y) for a short to ground.
The solution isn’t really difficult. It’ll take about an hour and a half. You have to remove the radio/climate control faceplate, then disconnect and remove the climate control unit. Disassemble it all the way down to the circuit board. There, the temp control knob will have 3 pins that go all the way through the board.
If Fuse 10 (7.5A) opens again, REPLACE the powertrain control module. TEST the system for normal operation. Measure the resistance between the function selector switch connector Pin C234-4, Circuit 1003 (GY/Y) and ground. Is the resistance reading 10,000 ohms or less? Yes REPAIR Circuit 1003 (GY/Y) for a short to ground.
Why is my Blend heater on Hot setting?
Blows HOT air on Hot setting (variable setting knob set to full red) and slightly warmer than outside air on COOL setting. Have confirmed that acuator is working. Blend door sticks so heat is all ‘on’ or all ‘off’. Put new controller in and checked signal – it varied properly.
What causes an air lock in a hot water heater?
Air lock: An air lock is a large air bubble that forms in your cooling system as the result of a coolant leak or a recent coolant top-up. An air lock prevents the coolant from circulating properly and can cut your heat output. Solution: Set the heater to its maximum setting, remove the coolant tank cap and fill it to the proper level.
Why does my air conditioner keep blowing cold air?
Heater valves: These valves control the heat output of the heater core. They can be mechanical or vacuum-operated (like a rotary knob that you turn) or electronic (in electronic climate control systems with specific temperature settings). A valve that is stuck in the closed position will prevent heat from entering the cabin.