Why is my space heater only blowing cold air?
An electric heater that blows cold air could be caused by one or more of the following reasons: The manual reset has tripped. The fan switch is “on” and the thermostat setting is below the actual temperature. Adjust the fan switch; try setting it to auto – it may not be in the heating cycle.
What do you do when your fan heater blows cold air?
To start the troubleshooting process for your heater, try these steps:
- Let the heater run for 10 minutes and check if hot air is beginning to come out after that time has elapsed.
- Check the temperature setting on the thermostat.
- Check or replace the batteries inside the thermostat.
How do I stop my heater from blowing cold air?
How to Troubleshoot a Furnace Blowing Cold Air
- Do this: Ensure your thermostat’s fan setting is set to AUTO, not ON.
- Do this: Turn off your furnace at the thermostat, and check the furnace filter.
- Do this: Try relighting the pilot light following these steps:
- Step 1: Turn off your furnace.
What to do if your heater is blowing cold air?
Coolant level: If your coolant level is low, your heater core may not be getting enough warmed coolant through it to produce adequate heat. Solution: Top up the coolant and see if it helps. If the level is low due to a leak, track down the source and get it repaired.
Why does my car heater keep blowing cold air?
There are many reasons your car’s heater isn’t working. Maybe the fan is malfunctioning. Perhaps your temperature gauge is running below normal. There could even be a puddle of liquid under the front of the vehicle. A lack of heat can be a symptom of a much larger problem. You could soon be facing failing parts or even a blown engine.
What to do if your car heater is leaking coolant?
Radiator leak: This can keep your coolant level too low, especially in older cars. Look for puddles of coolant under the front of your vehicle. You may also find a dripping or wet area on the radiator. A bad radiator should be attended to promptly. Solution: Your mechanic might be able to repair the radiator, or it may need to be replaced.
What causes an air lock in a hot water heater?
Air lock: An air lock is a large air bubble that forms in your cooling system as the result of a coolant leak or a recent coolant top-up. An air lock prevents the coolant from circulating properly and can cut your heat output. Solution: Set the heater to its maximum setting, remove the coolant tank cap and fill it to the proper level.