Why is my hot water heater blowing cold air?
Just bought last week, very well maintained. The heater blows cold air. Replaced thermostat with oem 195 (had 180 in it) and filled all coolant levels. Temp gauge varies between 190 and 210 while running. One heater hose is warm, the other is cold.
What to do if your car heater is not blowing heat?
Visually check the water pump behind the pulley for signs of a coolant leak. If the water pump gasket is leaking, it must be replaced. Also vehicles can overheat and or not cool properly. Now at that.I don’t see that is your problem. The engine temp is okay. It is the heater which leads me back to air in the system.
What to do if your water heater is not blowing?
By the time you can feel play in the water pump pulley, you may also be able to hear the bad bearing when the engine is running – there may be a low-pitched grinding noise coming from the water pump pulley. Visually check the water pump behind the pulley for signs of a coolant leak. If the water pump gasket is leaking, it must be replaced.
Can a bad blower motor indicate a bad heater core?
It may indicate that your blower motor or another component of your heater has gone bad (cheer up, it may be a component that’s less tedious to fix than the heater core). Though, if you’re seeing one of the other signs in addition to a lack of heat that’s a pretty good indicator that the heater core itself has a problem.
Heater core exterior: The heat-radiating fins on the outside of your heater core could also be clogged with debris that makes its way in from the outside air intake at the base of the windshield. This can affect the heater’s output.
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.
What to do if your car heater is not working?
Solution: Set the heater to its maximum setting, remove the coolant tank cap and fill it to the proper level. Start the engine with cap still open and let the engine idle for a few minutes. If the coolant level should drop as the thermostat opens, top it up as necessary.
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.