No air from heater/defroster

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Radical Racing
Posts: 47
Joined: Mon Mar 11, 2013 12:06 am

No air from heater/defroster

Post by Radical Racing »

I can't figure out why there is no air from the heater or defroster when I rotate the right hand large round knob on the center console. I replaced the blower motor brushes (I checked it on the bench before reinstalling), K1 relay, fuses and the low speed fan resistor. I get air when I turn on the A/C and can increase the air flow when I rotate the knob. Any thoughts on a fix would be greatly appreciated.
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hornhospital
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Location: Silverhill, AL
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Re: No air from heater/defroster

Post by hornhospital »

The A/C fan is separate from the heater/defroster fan.
Ken Kanne
'84 633CSi "Sylvia"; '85 635CSi "Katja";'85 325e "Hazel Ann"; '95 M3 "Ashlyn"
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