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Ford: Heater fan either off or high - no in between
Hello Folks,
Once again I come to you asking for help with my company work truck. It's an 06 F-250. A few weeks back the heater fan control stopped working except on high. All the other positions are dead. I was told it was probably the heater fan resistor, located in the air box near the heater core. I took it out and looked at it - all the resistor coils look intact, but have some heat discoloration, which is probably normal. Is there a way to test these with a volt meter or ohm meter. Could it be the switch bad instead?
Thanks for your help,
Blake
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2003 Silver QC 2500 SLT 4x4 6 sp HO, DiProcal gauges in column pod, blue Line-Xed lower body, LED marker lights, 315 Firestone Destination MT's Truck window decals and stickers. Steam Engineer, Cletrac & Oilwell Historian, NRA Life member. Oil & Gas Lease Operator.
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