The blower motor resistor is an electrical component that is a part of the vehicle's heating and air conditioning system. Soon after, only days later, the plug melted on the new resistor, with the high speed power into the resistor wire also melting before the resistor … When it burns up, will only work in high. 22 Posts . The grounds could be wiped sparkling of grease and rust for a robust connection. Used Chevrolet Silverado 1500. Another common symptom of a faulty blower motor resistor is a a blower motor that does not function on certain settings. i have had the resistor changed twice and it is out again. Blower resistors can burn out. We've had codes checked and it said it led back to the tranny?? Maybe 6 months ago, blower fan speed 5 stopped working, followed by the rest shortly after. Following the great advice on this forum, I checked the blower motor resistor and plug, and replaced, ad sure enough, everything was fine. I ask because when my blower motor resistor burned up in my 2002 Grand Cherokee, it appeared to be due to bad contact at the connector itself, which is what actually melted. My resistor on my heater blower motor keeps burning out i have replaced 3 resistor the last resistor lasted 2 days can some one help me Posted by peterserv386 on Jul 28, 2011 A few months ago, the blower motor resistor went out. Check out free battery charging and engine diagnostic testing while you are in store. I got in my truck this morning and had some frost on the windshield so I turned the defrost on, blower motor … 3,025 Great Deals out of 128,922 listings starting at $1,495. I would suspect the blower motor itself more, if it's drawing too much current it will burn out the resistor and possibly other electrical components. On this unit, the typical 1075 RPM 1/2 HP motor is not an acceptable replacement and will fail. If the blower motor resistors’ internal components fail it may cause the blower motor to malfunction, or not function at all on one or more of the settings. I finally found the simple solution and ultimately the actual cause to the issue of the blower resistor burning out and over-heating the plug wiring - The blower motor itself is the culprit! A blower motor resistor is an adjustable resistor. I went to area junk yards to see if I could find and replace the part myself. Why do i keep burning out blower motor resistors? ... 1995 Ford F150-F350 PCM Pin Out Chart (4.9L California Only) 1994-1995 Ford F150-F350 PCM Pin Out Chart (4.9L Only) 1992-1993 F150-F350 Fuel Pump Circuit Tests (Ford 4.9L, 5.0L, 5.8L) 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. There is one parallel leg with the blower that goes to the AC Amplifier on this same 50 ampere fuse. The blower motor is the component responsible for … 79 Great Deals out of 6,058 listings starting at $2,450. 100% free webcam site! Mine blew the resistor 3 times replaced the motor and no more problems in 3 years it is an 01. 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. A faulty resistor loses power at different positions on the switch. Sep 25, 2017 | … If the blower motor was aftermarket it might be the problem, especially parts made by Carbone (I think that's the … ... A adverse floor close to those instruments would reason extra warmth which will reason the burn out too. I replaced the original blower motor resistor within a month of purchase. 2. I changed the resitor for my blower motor in my HD about a month ago. I replace it, and within a few days it (sometimes weeks) it burns out again. If I am not mistaken up to 2000 the blower resistor was on passenger side under hood and in 2001 it switched to behind glovebox. Used Cars New Cars ... Used Ford F-150. A half watt resistor would burn out to prevent further damage while the 1 watt or bigger might allow too much current to flow through another component. I've had to replace the blower motor resistor (P/N ECH BR284) four times in the past year. Is that possible? The user chooses a suitable fan speed by using a selector to connect one of the resistors in the blower resistor pack. I'm thinking a defective blower motor that isn't cooling the resistor as it should. The Blower motor resistor in my plymouth breeze keeps burning up. The best way to test the blower motor is run fan position 5 (hi-speed) which uses direct battery supply 12 volts and not the resistor matrix . Skip To Content. Had to replace the connector to match the new resistor style. Certain Goodman units have a blower that requires an uncommon lower RPM. The Dealer wants $700 to fix it. It is responsible for controlling the blower motor’s fan speed. If there is power indicated on high blower speed, but not low or mid range, the problem is the blower resistor. Not only that but my abs, service engine soon, and trac off light are all on. The blower motor relay is the electrical switch that is used to supply the power for the vehicle’s blower motor. The relay is hard wired to the fuse box and the blower motor.Disconnect the motor … The HP and RPM of the motor must match the fan. Also check the electrical connection on the blower esistor it could be melted. Hi..as I said the damn heater blower and resistor keep burning out on my intrigue. This means that the current running through the blower motor, and thus is speed is controlled by the resistor value. No fuses blown, just relay. We fix the cabin fan in our F-150 by replacing the blower motor resistor. Are you sure the blower motor is good? About a month ago I finally got around to replacing the blower motor resitor so that the blower would work on low-med-high. This electrical component is used to control the air conditioning system of a vehicle. I have a 2002 Durango SLT and my blower motor resistor wiring harness connector just burned up. 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. I've replaced the blower motor a total of three times, and the resistor a total of 5 times. my blower motor speed resistor keeps going out.....why? Last night, it went out again and now the blower only works on high. I've had it replaced 3 times in 3 years, and today it just went out … High blower speed has direct power to the motor from the switch. If someone replaced the blower motor with an incorrect unit on the first go-around, then new motors that size will continue failing. After years of replacing the blown resister module 3 to 4 a year, I finally bit the bullet and bought a new blower fan/motor. I saw many Durangos with the connector and resistor already cut out. 1994 toyota pickup ac / heater blower motor relay keeps burning up. I have changed the resistor 4 times, but it keeps … When that happens, you lose that speed. If there is no power indicated on high blower speed, the problem is most likely the switch or the fuse. My number 5 setting quit working so I got the new resistor and it fixed the problem. Personally I doubt the issue is a bad blower motor. At the same time I was replacing a timing chain and oil pump. Heating systems with just 3 or 4 speeds use a motor resistor along with the speed switch to regulate the motor speed. My blower motor resistor keeps burning up. heavyduty April 15, 2018, 5:36pm #6. I replace it 3 times will work for a day or two in all fan speeds. Blower motor resistors can wear out; the blower motor no longer works correctly if this occurs. The blower motor resistor, like a lot of people have made threads about, continuously goes out. Discussion Starter • #1 • Dec 29, 2016. why does it keep going out? Skip To Content ... Used Ford F-150. Why do i keep burning out blower motor resistors? Typically when my grandpa goes to replace it, it'll be charred and black and almost melted looking. 2005 T'Blazer, 6 cylinder, manual A/C controls. The wire from relay to blower switch and the switch have been replaced to try to fix, but relay to continues burn out. Disconnect the blower motor resistor from its electrical connector and remove it from its location. Jeeps service bulletin for that was to replace the wire harness and it never happened again with the original blower motor still in place. If the blower motor looks like it is rusty, or the resistor keeps burning up, then it is most likely water intrusion. There are several symptoms that appear when the resistor of the blower motor is going bad. Blower motor does not work on certain settings. These conditions may cause the relay resistor module or wiring connector to overheat, causing various symptoms such as: the HVAC blower may not function on certain or all blower speed settings; a burning-plastic smell or smoke may be present in the vehicle, or; the HVAC blower may run continually with the ignition in the OFF position. The blower resistor is connected in series with the blower fan. Free Same Day Store Pickup. Power to the blower is from a 50 Ampere Heater Fuse through the Heater Relay to the blower motor to the resistor bridge to the AC Controller to Ground. 07 Taco keeps burning through blower motor resistors. Any idea as to why it keeps blowing out? A usual place for water to enter into this area is a loose, or missing weatherstrip under the upper cowl panel. What is a blower motor resistor? 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