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Heater is not coming on. All I hear is what sounds like the fan but no heat kicking in. Can ya help?

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Sounds like the blower motor has had a pin sheared off the would typically hold the cage of the blower, so to speak, to the drive shaft. I would look towards a new blower motor. If the cage on the blower moves freely with the motor then you might have a stuck or faulty blend door not allowing the air to enter the duct system.

Posted on Oct 16, 2013

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My heat works on all settings whenever it comes on, but it can take up to an hour for the fan to kick in.


If the engine itself is running on the hot side, that's could be a thermostat/ heater control valve. If the engine itself is running up to par (cooling system, fans etc) sounds like a heater control valve issue.) Inside fan works well, no odd vent smell (rotten eggs). Heater control valve. Good luck Frank M

Feb 15, 2016 | Cars & Trucks

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2010 Lincoln MKS Heated Seat on driver's side stopped working (Light in button turns off on its' own)


The most common cause of this problem is that the drivers seat heater grid is open or burned out. That is based on 25 years as a Ford dealer technician.

Feb 27, 2017 | Lincoln Cars & Trucks

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Poor heater


The most common issues with this can be low engine coolant, the thermostat being stuck open, or a engine cooling fan / fan clutch being stuck on. Generally the fan is the easiest to check. You can hear it when the engine is running, a good way to check fan operation is to turn the Air conditioning, on, this should turn at least one (if you have two fans) on. That will help you know what the sound of the fan kicking on sounds like. Checking the coolant level should be left to someone who allready knows the procedure to check proper coolant level as it can be very hot and often erupts when opened. The thermostat is best checked by letting the car warm up for 15 minutes with the hood open. The engine coolant temperature should be between 170F and 210 F. The best, and easiest way to check this is to pickup an infrared thermometer. They can be purchased at any auto parts store. You then measure the temperature of the top coolant hose coming off the radiator and the bottom hose. There should be a slight difference but no more than 10 or 15 degrees. If there is more than that replace the thermostat.

Feb 21, 2014 | Cars & Trucks

1 Answer

Fan blows air, but no heat or ac


May be your air modulator. Do you hear a clicking sound behind the dashboard?

Jan 04, 2014 | 2000 Lexus ES 300

1 Answer

When I turn the heater on, the motor sounds like it wants to turn but there isn't any heat coming out


the fan will run whether or not the heater core is getting warm, it does not care. you can hear the fan run, sounds like a fan running. if there is air coming out the vents and you hear the fan running, then the problem lies with the heater core.

Dec 16, 2010 | 2004 Mitsubishi Galant

1 Answer

No heat in cab.


You did not BLEED the radiator and it's over heating.

Take off radiator cap when engine is COLD

Start engine

Let it idle until it's HOT

As it heats up you will notice air bubbles coming out of the radiator filler neck.

Let car run until you don't see any more bubbles

Fill radiator coolant to keep it topped up to the hot mark.

Put radiator cap back on once you hear the fans kick on.

Done

You should now have tons of heat

Providing your water pump is working

Mar 31, 2010 | 2000 Chrysler 300M

1 Answer

The fan doesn't come on allthe time for the heat


This sounds like a BSC blower speed controller. To diagnose turn the key on engine off, its located under the heater hoses on the a/c case. Wiggle the connector and the fan should start to work, then replace it.

Nov 20, 2009 | 2001 Lincoln Town Car

1 Answer

My 96 thunderbird gettin hot


is your fan clutch kicking in? It could be bad. crab the fan blade and try to move it back and forth. If it moves more than minimal you will need to replace your fan clutch.

Oct 08, 2009 | 1996 Ford Thunderbird LX

1 Answer

Heater comes on and go off when it wants to.


What you're likely referring to is the blowing air starts and stops erratically. Since the heater uses heat circulated from the engine, if the air is constant and the heat comes in and out then that's a different issue.
Firstly, if the airflow starts and stops, you'll find a loose connection between the the fan switch and the blower itself. If the connections are sound, then look for a loose ground connection to the blower. If all electrical connections are good, and it still starts and stops erratcially, then it's time for a replacement blower.
Secondly, If the air is constant and the heat comes in and out, the the options are a faulty water pump or partial blockage in the colling system or heater core. If the water pump is failing and working erratically, then when the heat dissipates in the cabin airflow (it has used all the heat in the heater core and no circulation to replace the cooled water with hot water) the dash temp gauge should start to climb, indicating that the coolant is no longer circulating, the heat has left the heater core but the engine is not being cooled. You'll need to replace the water pump. If this is the case, take care of this ASAP as you run the risk of a an engine overheat.
If the dash temp gauge looks normal, then you're likely looking at a partial obstruction in either the cooling system or the heater core that blocks the flow and then works its way loose erratically. Limescale and crud buildup in your cooling system (especially in a 15-ys-old car) can cause this when flakes of buildup brake loose from the walls of the larger channels and get caught up in the smaller ones. Your local parts store will have additives to clean out the cooling system, but if they don't work (they can only do so much) then you're looking at a professional cooling system flush. If the issue persists after that then you're likely looking at a heater core replacement.
Also check to see that your a/c is not kicking in erratically. It shouldn't completely cool down the full-hot airflow, but it will cool it. You can tell if the a/c unit is kicking in as you'll hear the compressor clutch kick in and the engine revs/sound will change under the load. If this is the case look for a short in the a/c wiring.
Hope this helps, and please rate my answer.

Dec 31, 2008 | 1994 Geo Tracker

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