What happens to the climate control unit when the blower is off?
If the Blower is off, the Recirc door defaults to the fresh air position. The Recirc door actuator is closed when a ground is applied at Pin 4 of the Climate Control PCB. When Pin 4 is open the actuator opens the door allowing fresh air to flow into the cabin.
Why does my blower fan not work on high?
Blower Fan Works on High Only This is a classic blower motor resistor problem which is common on older cars and trucks that use manual fan speed switch controls. This problem will also occur on climate control systems when the speed controller has burned out omitting full power to the blower motor. This can also occur with the ignition key off.
Why is my climate control unit no longer working?
It was no longer used after 1999, due partly to unreliability, and partly due to upgrades to newer technology. The most common problems with this vintage of AC Delco climate control systems are failure of ventilation door servos, and failures of the control unit. This document pertains to the control unit.
What are the problems with a Delco climate control unit?
The most common problems with this vintage of AC Delco climate control systems are failure of ventilation door servos, and failures of the control unit. This document pertains to the control unit.
Blower Fan Works on High Only This is a classic blower motor resistor problem which is common on older cars and trucks that use manual fan speed switch controls. This problem will also occur on climate control systems when the speed controller has burned out omitting full power to the blower motor. This can also occur with the ignition key off.
Why does my climate control panel have no power?
Climate Control Panel Has No Power: I Have No Power to My Climate I have no power to my climate control instrument panel. What would cause this and how do I fix it? have the same problem? First suspect is a defective control module. Second suspect is a blown fuse. helpful? Would the fuse I need to replace be under the dash or in the BJB?
What should I do if my Ceiling Fan is not getting power?
Step 3: Use a circuit tester to make sure the fan’s motor is getting power. If your fan is not getting power, you have a wiring issue that must be repaired. Wiring between the switch or power source and fan has likely gone bad. Skip to step 5 if your fan’s motor is getting power.
How can I change the speed of my blower fan?
These different systems will vary the fan speed by using a solid state speed controller apposed to a basic resistor. Once the electrical connector is removed check its condition while looking for corrosion or burned terminals which are a sign of high resistance or increased amperage draw.