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Posted on May, 20 2019 by Michael Burnstagged with :
Blower motor resistor wiring diagram - it is a mon concern of ford crown victoria owners to state something to the effect of my blower motor only works good on the high speed in which case the blower motor might not spin on any speed other than high what is a blower motor resistor heating systems with just 3 or 4 speeds use a motor resistor along with the speed switch to regulate the motor speed blower motor resistor diagnostics gm blower motor resistor diagnostics wiring diagram analysis and resistor failure causes the blower motor controls air flow into the passenger cabin in conjunction with the blower motor resistor final stage if your blower motor fails and replacing the final stage unit has not remedied the problem the blower motor itself is likely at fault step 2 remove the blower motor locate and disconnect the a c blower motor wiring by releasing the safety tab on the side of the connector this connector can have one.
or four wires depending if the system is manually or automatically controlled yes pulled the 30 hvac blower fuse and the blower motor will stop checked the dic rke fuse 10 and there is power their checked a c cruise fuse and there is power there as well it s possible the aftermarket parts are the problem but not likely i would suspect the blower motor itself more if it s drawing too much current it will burn out the resistor and here you are at our website nowadays were delighted to declare we have discovered an incredibly interesting niche to be reviewed that is a c wiring diagram chevrolet silverado 2014 present why does my blower motor not work whether it s hot or cold you expect your chevrolet silverado s ac or heater to take care of you installed new wiring on 67 cutlass with ac i failed to save the blower motor relay on the heater blower motor i can purchase a new relay but i cannot.
see what wires i
When switching to speed 4 the voltage goes through a resistor before reaching the blower motor this resistor takes away approximately 2 volts.