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Heater fan will not come on

Heater is hot but the fan will not come on

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Heater a/c control unit not working


what mode, heat or cold?
does fan blow?> no "? then replace the fan fuse.
fan blows on high? yes.
then if A/C ? wanted? why not say? then the green light glows
near A/C switch, does it? y/n
yes the does A/C compressor clutch close? and compressor shaft turn? y/n.?
or its heat you want? not stated.
so no heat, is a whole other list. ill try.
1: engine not hot, not 180f min. and holding (y/n)
2: cab fan dead.
3: heater core not hot, (feel the hose there both must be hot)
4: damper stuck closed blocking heater core.

Mar 25, 2014 | 1996 Geo Metro

3 Answers

How do I check to see if the heater coil is plugged


The fan is usually the problem - does the fan run? If the fan is good, remove the fan and use a mirror and flashlight to inspect the coil. It would be unlikely that the coil is completely plugged but it can happen.

Dec 27, 2012 | 2002 Lexus IS 300

1 Answer

Heater doesnt work


To troubleshoot this types of problem,click the link below :---
Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html

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Engine Overheats and heater blowing cold?

http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html

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Heat blows cold on drivers side and hot on passenger side?

http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html

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No heat on car? http://technoanswers.blogspot.in/2012/02/no-heat-on-oldsmobile-silhouette.html

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Heater blows intermittently and temp gauge goes erratic?

http://technoanswers.blogspot.com/2012/01/heater-blows-intermittently-and-temp.html

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Heater blows cold?

http://schematicsdiagram.blogspot.in/2012/02/heater-blows-cold.html

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Heater/AC blower motor not working?

http://technoanswers.blogspot.in/2012/02/heaterac-blower-motor-not-working-on.html

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A/C, heater, defroster fan, not working? http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html Heater problem?

http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html

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This will help.Thanks.

Mar 27, 2012 | 1994 Volvo 960

1 Answer

Air works great but no heat just blows cold air


For this types of problem,i suggest you to check this help links:----Car heater blowing warm, but not hot air?http://schematicsdiagram.blogspot.com/2011/12/car-heater-blowing-warm-but-not-hot-air.html
---------A/C, heater, defroster fan, not working?http://technoanswers.blogspot.in/2012/02/ac-heater-defroster-fan-not-working.html
--------Heater problem?http://technoanswers.blogspot.in/2012/02/heater-problem-on-isuzu-trooper.html
---------Engine Overheats and heater blowing cold?http://howtobyme.blogspot.com/2011/11/engine-overheats-and-heater-blowing.html
-----------Heat blows cold on drivers side and hot on passenger side?http://schematicsdiagram.blogspot.com/2011/12/heat-blows-cold-on-drivers-side-and-hot.html----------------This will help.Thanks.

Sep 05, 2011 | 2007 Suzuki SX4

2 Answers

When the car is idling, the heater blows out cool air but when the car is moving, the heater works fine


When the coolant in the heater core is hot from the engine and your fan is on hot air will blow through the hot fan coil, i figured it out, when i stepped on the gas i could here the coolant squeezing by the control or limiter valve, because the higher rpms make the belt spin faster which makes the water pump pump harder causing more pressure, so when u idle that hot coolant will cool down from the fan blowing on it, u need to find the control valve and open it up to full blast, then hot coolant will always be flowing through your heater coil. ;)

Dec 17, 2010 | 2008 Pontiac G6

2 Answers

Heater gets warm but not hot? 1995 dodge Dakota


Do you know how to carefully feel heater hoses to see if coolant getting to heater core is hot enough? Has thermostat been changed lately, and coolant system flushed?

Nov 06, 2010 | 1995 Dodge Dakota

1 Answer

Heater only blows hot (well, warm) on full speed of fan


Replace the temp control on this car, it should be electrical control not cables.

Dec 03, 2008 | 2000 Ford Escort

3 Answers

2002 mercury sable heater wont get hot


you have a broken or stuck temp blend door in the heater case. or the servo motor is broken. this sits on top of the heater case

Dec 02, 2008 | 2001 Mercury Sable

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