Why is the heater in my car blowing cold air?
Hot coolant from the engine passes through a heater core, which looks and functions a lot like a small radiator, and a blower motor forces air through it. It’s also the reason that a plugged heater core, stuck thermostat, or air in the cooling system can all cause a car’s heater to blow cold.
Why is my car heating not working?
Systems that blow air There could be a blockage or other problem stopping heated antifreeze from moving through the heater core component. A valve or switch could be faulty, or the heater core could be a clogged. Wait until the engine has cooled down and check the coolant level, topping it up if needed.
Is heat not working an emergency?
A malfunctioning heater isn’t considered an emergency unless it stops working during the winter. If your heating system won’t operate on a cold winter day, please call our emergency maintenance number as soon as possible.
How do you know if your heat isn’t working?
If your heater isn’t working, you shouldn’t smell anything in the air. If you smell a burnt or smoky smell or a gas-smell, that can be a worrisome sign and you should get professional help quickly.
What causes heater not to work in the car?
The amount of coolant in the system is too low.
What to do if car heater is not working?
Check the heater core temperature. Lift the hood and check the temperature around where the heater core hoses enter the heater core box. The safest way to do this is with a non-contact infrared thermometer. If one hose is the same temperature as the coolant and the other hose is cold, there may be a blockage in the heater core.
What can cause a heater to stop blowing heat?
At the simplest level, there are two main reasons why the heater is not working. If it’s not coming on at all, it’s usually either the blower motor or some other wiring issue. If the heat is blowing, but blowing cold, it has something to do with the coolant getting to the heater core, or the heater core itself.
Why would the car heater not blow any air?
Car Heater Not Blowing Hot Air: A Bad Blower Fan Motor The blower fan located behind the dashboard pushes air through the climate control vents. If the heater isn’t blowing hot air at you when you turn the system on, the blower fan might have a problem.