The heater is dependent on the coolant flowing through the heater core. If the coolant is low then there will not be any heat.
You need to find and fix what broke. The first places to start would be coolant level, engine temperature, and dash heater controls.
Yes, if the coolant level is low, or the pump is not capable of moving coolant through the heater core.Yes, if the coolant level is low, or the pump is not capable of moving coolant through the heater core.
replace heater core and or themostat Coolant level may be low not allowing hot coolant to circulate properly, check coolant level.
Check the coolant level. My 2000 Ford Taurus has a constant flow cooling system and the heater will not work if the coolant level is too low.
The presence of the valves usually restrict the coolant flow into the heater core.
There are several possible causes. A thermostat stuck open A heater control valve stuck closed A malfunctioning blend air door (located in the heater box) Low coolant level Malfunctioning heater controls
coolant level could be low not letting it circulate through the heater core, causing it to blow cold. Also, if the coolant level is low it will in turn overheat.
Check the coolant level.
Check coolant level? Heater core plugged or restricted? Heater core airbound? Bad thermostat? Water pump not circulating coolant? Heater control cable not adjusted properly?
Check the coolant level. Usually low coolant levels will cause this.
It could be the coolant level is low or a faulty thermostat.
Coolant mixed with a little air circulating thru the heater core. Check the coolant level in the reservoir.
If your heater core is LEAKING engine coolant so that your engine coolant level drops too low or the engine coolant is lost completely and causes your engine to overheat then your engine can be damaged beside the mess the leaking coolant makes inside your vehicle ( you might be able to just temporarily bypass the heater core so that no engine coolant is flowing through the heater core )
Low coolant level? Cooling system airbound? Bad thermostat? Water pump not circulating coolant? Heater control cable not working?
Low coolant level? Thermostat not opening? Water pump not circulating coolant? Heater core airbound? Heater core plugged or restricted?
First check the water level. Low level will not get to the heater core. Change the thermostat. If you recently changed the thermostat, bleed the coolant system.
Check to see if the coolant level is low. If you have a leak in the system and the level drops low enough your heater can't do it's thing.
First thing to check is that your coolant level is full in the radiator. Low coolant will cause exactly the problem you describe. If the coolant level is okay there are a few things that can cause the heater not to work. A bad control panel, a heat thermister (usually located on the heater box under the hood) some have a fuse that controls the heater but most just have a fuse for the heater fan. It is also possible you have clogged heater hoses or a clogged heater. Also check the thermostat to make sure it is not stuck open. On a 2002 you should probably have a check engine light if the thermostat is stuck.
well you could just turn the heater off heater blower ---- If it is a car heater then check your coolant level. the heater is driven off a heat converter that is fed by the radiator system. When the coolant fails to pump round the radiator system the car internal heater doesn't work. Driving without coolant in the system will result in the engine overheating and seizing.
Check coolant level? Heater core plugged restricted, or airbound? Defective thermostat? Water pump not circulating coolant? Heater control cable not adjusted properly?
check your coolant level. if its full, might be a plugged heater core.
If you are talking about a vehicle, then the coolant level is critical for generating heat. Check you vehicle coolant reservoir if it is empty, wait until the engine is cool and check the level of coolant in the radiator and fill as recommended with the appropriate kind of coolant then fill the reservoir to the level indicated.
Check you oil level! Also there should be a wire attached to around the area of the oil pan. That sensor controls the coolant level, oil level and that wire.
Check your coolant level. If its too low the sensor won't read the temperature of your coolant.