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Heater Fan Not Spinning


Best Answer sonikk4 , 23 September 2017 - 06:24 PM

You will need a Fluke / multimeter to see if you have power to the switch. As for the earth this will come off the motor itself. Its possible it broken off or damaged. On my Clubby, the earth lead was trapped between the heater body and lower dash rail. Also luckily for me the power lead insulation has also been damaged but had no shorted against anything.

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#1 JB998

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Posted 23 September 2017 - 05:56 PM

My 1991 mini heater fan is not spinning, it's worked before but tried it the other day and it no longer worked!

I have checked the switch works and it's not the fuse as my wipers still work, all the cables look in good condition so I'm a little stumped :(

Any ideas appreciated...

#2 sonikk4

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Posted 23 September 2017 - 06:00 PM

Have you got power supply to the switch?? Is the earth good??



#3 JB998

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Posted 23 September 2017 - 06:03 PM

Have you got power supply to the switch?? Is the earth good??


Where would it earth? And how would I check I have power too the switch? (Sorry for being thick)

Edited by JB998, 23 September 2017 - 06:03 PM.


#4 sonikk4

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Posted 23 September 2017 - 06:24 PM   Best Answer

You will need a Fluke / multimeter to see if you have power to the switch. As for the earth this will come off the motor itself. Its possible it broken off or damaged. On my Clubby, the earth lead was trapped between the heater body and lower dash rail. Also luckily for me the power lead insulation has also been damaged but had no shorted against anything.



#5 JB998

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Posted 23 September 2017 - 06:29 PM

Sounds easy enough Thank you, I'm guessing the earth would be the black lead coming from the heater?

#6 Magneto

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Posted 23 September 2017 - 06:36 PM

Two leads coming out of the heater motor, one goes to the switch (green/black IIRC) and the black one goes to ground (or earth as you guys say it) check to see if you have power to the switch, and coming out of the switch first, if you do and you're certain the ground is good you may have to drop the heater assy to see if something is stopping the blade from turning or if the motor is simply bad.

 

Lots of people have found mouse nests and other things in their heaters keeping the fan from working.....



#7 JB998

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Posted 23 September 2017 - 06:44 PM

Two leads coming out of the heater motor, one goes to the switch (green/black IIRC) and the black one goes to ground (or earth as you guys say it) check to see if you have power to the switch, and coming out of the switch first, if you do and you're certain the ground is good you may have to drop the heater assy to see if something is stopping the blade from turning or if the motor is simply bad.
 
Lots of people have found mouse nests and other things in their heaters keeping the fan from working.....


Just checked and I have no power coming too the switch at all

#8 sonikk4

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Posted 23 September 2017 - 09:07 PM

 

Two leads coming out of the heater motor, one goes to the switch (green/black IIRC) and the black one goes to ground (or earth as you guys say it) check to see if you have power to the switch, and coming out of the switch first, if you do and you're certain the ground is good you may have to drop the heater assy to see if something is stopping the blade from turning or if the motor is simply bad.
 
Lots of people have found mouse nests and other things in their heaters keeping the fan from working.....


Just checked and I have no power coming too the switch at all

 

 

Inline fuse??



#9 Magneto

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Posted 24 September 2017 - 12:55 AM

 

Two leads coming out of the heater motor, one goes to the switch (green/black IIRC) and the black one goes to ground (or earth as you guys say it) check to see if you have power to the switch, and coming out of the switch first, if you do and you're certain the ground is good you may have to drop the heater assy to see if something is stopping the blade from turning or if the motor is simply bad.
 
Lots of people have found mouse nests and other things in their heaters keeping the fan from working.....


Just checked and I have no power coming too the switch at all

 

No power to the switch tells you where your problem is, just follow the wire back to either the fuse box or the inline fuse, whichever it has.......



#10 JB998

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Posted 24 September 2017 - 07:35 AM

Yeah, I'll get on with tracing the other wire back, one goes to my fuse box the other I'll find out where it goes

Thank you




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