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Originally Posted by dingzhijia
i just change blower motor resistor last week but it doesn't work again, and . someone told me maybe my blower motor is also not good although it still work. this sometimes will cause too much current in the resistor. is that right?
i have another small question, if A/C system uses different quantity of electricity from wind speed 1 to speed 5? i prefer not to change it if speed 5 consume the same electricity as speed 1.
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If the blower works in position 5 then the blower motor is most likely good. Positions 1-4 and 5 do not use the same 12 volts. Position 5 gets its 12 volts directly off the battery supply where 1-4 gets it via the climate control head unit.
Sounds like you have another issue like wiring, bad ground or possibly an ignition switch problem.