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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

heater switch low voltage

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Old Nov 16, 2023 | 04:42 PM
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66 4x4
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Mountain Pass
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heater switch low voltage

1964 f 250 has low voltage to heater blower control, has 12 volts at fuse box but test light very dim at power wire for switch. I ran 12 volt from battery to switch and blower works fine. Is there any thing between fuse box and switch that can be causing this issue.
 
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