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Volvo heater relay93 Volvo 850 heater motor relay is on the heater box towards center of car. That is without the digital climate control. There are two relays side by side, my relay has bad points and a blue cover. The resistor pack could also be your problem, it is on/in the heater box also. The heater box is below the glove box in front of passengers knees.

The Dealership refers to the resistor as a power unit (for auto climate control) systems. When this fails, the blower motor will not work. No heat or A/C. A different resistor is required for manual climate systems. To access this unit, you will need to remove the the glove box , the support bracket for S.R.S (passenger side) , and possibly the wire harness. There should be left of the blower motor, the resistor. New up to $300. salvage yard $6-25. Try Crazy rays

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โˆ™ 2010-01-09 20:02:06
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Q: Where is the air and heater blower relay located on a Volvo 850?
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