Due to the design of dual AC systems, low refrigerant is the leading cause of drastic temperature difference from one side of the dash to the other. … In most cases after the proper charge of Freon is in the car, the temp will blow equally as cold like it should on BOTH sides!
Why does AC only work on passenger side?
Blend door actuators are the most common reason for the car air conditioning to blow cold air on one side and hot air on the other. They can be diagnosed with an advanced scan tool. … If it does not move with the adjustments and commands, there is a problem with the blend door actuator and it will need to be replaced.
Why does my AC only work on one setting?
When a blower resistor fails, the highest fan speed usually is the only one that still works because it essentially bypasses the resistor and receives the maximum amount of voltage. When the resistor is working, it reduces the amount of voltage going to the lower fan speeds, so the fan runs slower.
How do I know if my blend door actuator is bad?
Signs You Need A New Blend Door Actuator
- Knocking. Knocking sounds can almost always be attributed to a failing blend door actuator. …
- Clicking. …
- Any Other Strange Noises. …
- Inconsistent Airflow. …
- Inconsistent Temperature. …
- Wrong Temperature.
How much is a actuator?
The blend door actuator is responsible for controlling the movement of the vents and the direction of the air, so once it’s damaged or broken, you may not have much temperature control in your car. If you need to have this car part replaced, you can expect to pay between $200 and $300 for parts and labor.
How much does it cost to fix a blend door actuator?
Blend Door Actuator Replacement Cost
The blend door actuator usually costs between $100 – $300 depending on the car’s make and model, before labor costs. On average you can expect to pay around $150 for the actuator itself.
Why is only one of my vents blowing cold air?
This situation can be caused by a bad blend door (also called air mix) actuator, a broken or binding blend/air mix door, broken linkage to the blend/air mix door, or a faulty HVAC control head or wiring harness.
Where is the actuator located?
The AC actuator is located above or below the coil. It can be set to either single speed or variable speed. When it is not working properly, your AC will be ineffective, and your power bills can skyrocket.
Can I add Freon to my car myself?
You’ve likely run low on refrigerant in your A/C system. Over time, tiny amounts of refrigerant leak from the lines, degrading A/C performance. … Recharging your air conditioner yourself is inexpensive and can be completed in just a few minutes.
How do I know if my car AC fuse is blown?
Test the load: If you saw a voltage reading during the previous step, run the same test on the “load” side of the fuses. You should again see a reading between 220 and 240. If you see a voltage reading on the “line” side but not the “load” side, it means you have a blown fuse.
How much does it cost to replace a blower resistor?
The average cost to replace the blower motor resistor at a repair shop is between $44 and $55 in parts and $70 in labor costs, for a total cost of around $114 to $125.
What is blower resistor?
The blower motor resistor is responsible for controlling the blower motor speed. In the past, this was done by varying the voltage supplied to the blower motor. … The change in resistance controls the current through the blower motor, which in turn limits the speed that the blower motor spins at.
How do I test my AC blend door actuator?
Here’s how. Consult the repair manual to identify which actuators control the defrost-vent-floor “mode door” and the temperature-regulating “blend door.” Then peer under the dash and locate the suspect actuator on the heater box. Have a friend switch between modes or temperatures while you watch the actuator.
Where is the blend door actuator located?
The blend door actuator is typically located closer to the heater core and evaporator than the mode door.