Heater is not working at all
Explanation
If you turn on the heat, and you don't get any hot air coming out from the vents, the common reasons for that are:
- Thermostat is stuck open
- Heater core is clogged
- Heater control valve is malfunctioning
- Blend motor is not working properly
There are few things you can check. If the temperature gauge is not moving up to the proper operating temperature when you start the car, more than likely the thermostat is stuck open (you need new thermostat). When you turn the fan on high speed, if you don't get proper amount of air coming out, then the problem could be with the blower fan or resistor or even clogged cabin air filter. It’s best to have a my mobile mechanic diagnose the problem on a scan tool, and go from there.
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