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Try taking the car in for a rad flush. You may have a restriction. Check also that the hoses are not kinked, block heater and rad.

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โˆ™ 2015-07-16 18:25:53
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Q: If you replaced the thermostat but the heater does not work and the air conditioner fan keeps working although not in use what could be wrong?
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Related questions

What is wrong with the rear ac of 1994 Mazda mpv when no cold air is coming out the front ac is working perfectly?

The rear air conditioner unit has a thermostat that is malfunctioning and needs replaced.

Why does your air conditioner turn on but not cool?

thermostat setting /very low gas pressure or compressor not working.

How do you calibrate the thermostat on the wall not on the heater itself for in wall forced air heaters?

If a thermostat is not working properly, you cannot calibrate it. It must be replaced.

Central heating quit working and led on thermostat does not work?

I replaced my thermostat recently. Try They have lots of them and they have good pricing. Give them a look.

Why would a Honda civic ex 95 overheat if you replaced the thermostat?

because the water pump is not working properly....

Why heating isn't working even though we have replaced the thermostat?

sounds like the heater core is out or you have an air bubble in the cooling system

Does the thermostat need replaced on a 1999 Ford Escort ZX2?

I have a 2000 zx2 and it has a thermostat, if that is your question. Having said that, my heater quit working and it turned out to be the cable came loose under the dash on the left side of the radio. At first I thought it was the thermostat but was wrong. Duct taped the cable in place and the control and heater started working fine again.

Will a bad thermostat prevent heater from working correctly?


How can you tell if thermostat on 95 ford escort bad?

If the engine is taking a long time to warm up or the gauge registers low heat the thermostat probably is stuck open and needs to be replaced. If the engine runs hot check the temperature of the upper radiator hose. If it's not hot the thermostat is stuck closed and should be replaced. If the upper hose is hot it means the thermostat is open and working. Cooling problem could be restricted radiator.

What would make the temperature gauge indicate hot on a 2004 Dodge Dakota if the thermostat has been replaced?

Have you checked for leaks? also the cooling fan may not be working.

Why would a tropper get hot if the radator is full?

If you have an old ISUZU Trooper, the radiator thermostat may be not working. Therefore, it will not let cool water from the radiator into the hot engine, even if the radiator is full. Have the thermostat checked and replaced, if necessary. Good Luck

Home air conditioner not blowing air?

Your air conditioner blower may have stopped working because the blower motor isn't working. You can replace the blower or replace the air conditioner.

If you have replaced the water pump thermostat and heater core and ran water through the radiator but it is still overheating Should you have the radiator pressure tested?

If you have replaced the water pump then flush the radiator with CLR also check to see if the fan is working properly.

Central Heating stopped working, themostat screen not working after changing battery now heat does not come on, fan works, still have hot water and gas dryer still works Do I need to replace themostat device?

Yes, If the thermostat isn't working, It cant tell the heat to come on. Thermostat is the brain of a heating & cooling system. Most likely the thermostat itself has worn out and does need to be replaced. You can get another digital one or you can change to an older style if you so desire.

Why has the heater in my 1996 Chevy blazer stop working?

It could be a blocked heater core if your fan works... Or it could be your thermostat... I have an 03 that is doing the same thing. I just replaced the thermostat and it is still doing it. There is a site called you may get some better answers there

Why is it running hot after you replaced thermostat and radiator?

if you have heat and and it is working OK. and if you squeeze the lower radiator return hose and feel water flowing. most likely it is the electronic fan not coming on.

Why is my Air conditioner outdoor unit not working?

1. Low on freon.. 2. Electrical issues.. 3. Bad inside thermostat.. 4. Bad outside capacitors..

How do you tell if your home thermostat needs to be replaced?

it should be replaced when it stops doing its job controlling the temperature and replacing the battery does not solve the problem or it is showing a digital error code that tells you it is defective. You may also want to test if it actually is doing its job but the heating or cooling unit may be broken. If you have more than one zone and you know what you are doing, you can switch it with a known working thermostat and see if the problem stays with the zone or it moves with the thermostat. That should tell you if the thermostat is broken or the system related to that zone needs maintenance.

1995 s-10 blazer you replaced the radiator and the heater hose was leaking so you replaced it and it is still overheating?

Did you check the thermostat to make sure it is working? If it is and you have enough coolant, you might want to check for head gasket issue. You can rent a tester at Autozone. HTH

What can cause my96 la sabra to ever heat and then have te ac quit working?

The thermostat may need to be replaced. The cooling fan might not be working. The cooling fan should run while the a/c is on. Two things I would check first.

What other reasons are there for a motor to get hot if you have replaced the thermostat and radiator cap?

Low of coolant, defective water pump, clogged radiator interior or exterior, cooling fans not working, thermostat installed up side down, or you may have bought a bad, new, thermostat. It happens. Also running 100% water will cause it to overheat. Run a 50/50 mix.

When the thermostat gauge stops working is it just the gauge or the thermostat?

most likely the gauge

Is the cars heater going from hot to cold a sign of a blown head casket replaced thermostat and water pump had it working good for a day then same thing happened or could this be faulty new thermostat?

Could be low on coolant. If the coolant continues to "disappear", you may have a head gasket problem.

Were is the thermostat?

NEED to know what you are working on.

How do you know if your thermostat is broken?

if its not working.