When that happens, you lose that speed. The Blower motor resistor in my plymouth breeze keeps burning up. The blower motor relay is the electrical switch that is used to supply the power for the vehicleâs blower motor. Blower resistors can burn out. This means that the current running through the blower motor, and thus is speed is controlled by the resistor value. I saw many Durangos with the connector and resistor already cut out. A faulty resistor loses power at different positions on the switch. Heating systems with just 3 or 4 speeds use a motor resistor along with the speed switch to regulate the motor speed. 100% free webcam site! About a month ago I finally got around to replacing the blower motor resitor so that the blower would work on low-med-high. 22 Posts . If someone replaced the blower motor with an incorrect unit on the first go-around, then new motors that size will continue failing. I went to area junk yards to see if I could find and replace the part myself. It is responsible for controlling the blower motorâs fan speed. If there is no power indicated on high blower speed, the problem is most likely the switch or the fuse. If there is power indicated on high blower speed, but not low or mid range, the problem is the blower resistor. Why do i keep burning out blower motor resistors? There is one parallel leg with the blower that goes to the AC Amplifier on this same 50 ampere fuse. A usual place for water to enter into this area is a loose, or missing weatherstrip under the upper cowl panel. Is that possible? Hi..as I said the damn heater blower and resistor keep burning out on my intrigue. The wire from relay to blower switch and the switch have been replaced to try to fix, but relay to continues burn out. Discussion Starter ⢠#1 ⢠Dec 29, 2016. The grounds could be wiped sparkling of grease and rust for a robust connection. High blower speed has direct power to the motor from the switch. Blower motor does not work on certain settings. Well, the last one worked out so well I will try this one. The resistors are arranged in series to reduce the voltage in steps, depending on where in the series you apply power. At the same time I was replacing a timing chain and oil pump. The relay is hard wired to the fuse box and the blower motor.Disconnect the motor ⦠Are you sure the blower motor is good? The blower motor is the component responsible for ⦠When it burns up, will only work in high. Had to replace the connector to match the new resistor style. I have changed the resistor 4 times, but it keeps ⦠Not only that but my abs, service engine soon, and trac off light are all on. i have had the resistor changed twice and it is out again. If the blower motor is bad it should pop the fan hi-speed fuse and you will see it act up or have reduced airflow at the vents. The HP and RPM of the motor must match the fan. I've had to replace the blower motor resistor (P/N ECH BR284) four times in the past year. 1994 toyota pickup ac / heater blower motor relay keeps burning up. Last night, it went out again and now the blower only works on high. 79 Great Deals out of 6,058 listings starting at $2,450. I replace it 3 times will work for a day or two in all fan speeds. The blower motor resistor is an electrical component that is a part of the vehicle's heating and air conditioning system. I have a 2001 Dodge Durango SLT+, and my first time doing this was back in June, I had to replace both a bad blower motor and a bad blower motor resistor. We've had codes checked and it said it led back to the tranny?? 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