If your car’s air conditioning (AC) is blowing hot air, there might be an issue with the blend door actuator or another part in the AC system. Find out how to diagnose a car AC blowing hot air with these tips.
Why Is the AC In My Car Blowing Hot Air?
If the AC is blowing warm or hot air in your car, there’s a problem with a part in the AC or HVAC system.
Why Do I Need a Blend Door Actuator for My AC to Work?
Blend door actuators work like a faucet. When the AC is turned on, the blend door actuator will direct cold air into the cabin. If there’s a problem with the blend door actuator, it might not direct cold air to your car’s interior, leaving you with warm air.
Symptoms of a Bad Blend Door Actuator
AC Blows Hot Air
If the AC in your car blows hot or warm air, there may be a problem with the blend door actuator.
AC Blows Cold on One Side and Hot on the Other
If you have an AC that blows hot on one side and cold on the other, you may have a faulty blend door actuator. There are a few ways to fix this problem.
More on how to fix an AC that Blows Cold on One Side and Hot on the Other
Clicking Sound from the Dash
If you turn the AC in your car on and it blows warm air that’s accompanied by a ticking sound from the dash, that’s a sign of a faulty blend door actuator. When the blend door actuator fails, the components inside can make noises like clicking.
How to Inspect the AC System
Different parts of the AC system can cause your AC to blow warm or hot air.
Read more to diagnose your AC further
More Parts to Check for an AC Blowing Hot Air
Check these articles out for help further diagnosing your car’s AC
- AC Blowing Warm Air?
- AC Stops Blowing Cold Air? How to Inspect the AC Condenser
- Car’s AC Not Blowing Cold Air? How to Diagnose & Fix Yourself
- AC Makes a Hissing Noise? Car Heater Rattling? How to Fix
- Car AC Fan Making Noise?
- Rattling Noise in Your Car Air Vent?
- When to Recharge the AC? Why You Shouldn’t Recharge Your Car’s AC System Yourself
- Why Is There a Puddle of Water Under My Car?
