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  #1  
Old January 3rd, 2013, 11:50 PM
Trooper90
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John Capps
1986 ninety
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Heater problems

I have an ex-mod 90 that no longer blows warm air, or air at all, I am getting about 13 volts at the connector before the relay but the blower is not working. The fan spins freely, and some air will move when at highway speed. Any help appreciated, not real good with electrics, especially British! Thanks
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  #2  
Old January 4th, 2013, 12:13 AM
DGH
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David Howe
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Your description is a bit cryptic but I'll take a stab at this. Correct me if I am wrong - by "no longer blows...air at all" you mean that your fan is not working when it should.

Test #1 - Can you apply power and a common to the fan connections to see if it will spin?

Question #1 - When you say "at the connector before the relay" do you know if that's the switch or the coil circuit?
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Old January 4th, 2013, 08:07 AM
Trooper90
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John Capps
1986 ninety
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Yes that is what I mean, it does not blow at any fan speed.i would like to test the fan but do not know how,without hurting it, and the connector is at what I believe is the coil (under the left wing)
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  #4  
Old January 4th, 2013, 08:46 AM
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ron
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Ron
1994 NAS Defender 90
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there are 2 wires near the fan with a quick disconnect ... disconnect and get a pos and neg wire to the motor if motor spins then the problem is upstream... my bet is the motor. if the air intake gets full of water it backs up into the motor and shorts it out good luck i have replaced 3 motors in my defenders.
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  #5  
Old January 4th, 2013, 09:40 AM
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Red90
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John B.
1991 Defender 90, 200TDI
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The fans are switched on the ground side, so make sure both ground and power are good.
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  #6  
Old January 6th, 2013, 06:47 PM
Trooper90
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John Capps
1986 ninety
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Okay, I'm going to try to work on it tomorrow and I'll post what I find, thanks for the help,oh and 1 more dumb question where should I get the power to test the battery?
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