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Why does my blower motor resistor keeps melting?
Trent, one of the biggest reasons for blower motor resistors to have shorten life is actually because of faulty blower motor drawing too many amps, some times melting wires/plugs, heating up resistors shortening their life.
How do I remove the blower motor resistor?
How to Replace a Blower Motor Resistor
- Remove the negative battery terminal.
- Locate the blower motor resistor on the passenger side under the dash board.
- Disconnect the electrical connector to the blower motor resistor.
- Remove the screws or bolts to the blower motor resistor and remove the resistor.
What is the blower motor?
The blower motor is the fan that pushes heated or cooled air through dashboard vents based on the climate system settings and the fan speed selected. Many vehicles have two fuses for the blower motor, one in the interior fuse block and the other under the hood.
What causes a blower motor resistor to melt?
Arching is what’s melting the connector. when you put the connectors together it may be a good idea to take a scratch awl or pick and squeeze the spade connectors in the plug tighter. You must log in or register to reply here.
What was the wire that melted on my blower?
One of the center wires is burned and melted about 1/4 inch outsode the plug. By wiggling that wore I can get speeds one through four to work again, but the wore and plug get really hot. I bought the connector and resistor at Auto Zone last time, the one that’s in there now.
Can a blower motor go out and smoke a resistor?
A blower motor that is going out can smoke a resistor. I lost #5 (no melting, relay in resistor crapped out) and after replacing the resistor the motor clamped at 23A and some change. I replaced the motor just to be on the safe side and it was right around 22A.
Can you check the draw of a blower motor?
You can check the current draw of the blower motor with a 12V battery/power supply and a DMM to be sure. given all the good responses I’ve gotten here, is to buy the connector plug that the Captain linked to, a new Delco resistor, and install them. The blower motor seems fine, it sounds and runs as it always has.