The HP and RPM of the motor must match the fan. Any sort of electrical spikes or excessive current from a bad relay will blow the fuse and cut power in order to protect the … Drive belt motors are common in commercial HVAC heating products. 09/10/2019 by blower switch is your fan knob on dash. There should never be a reading between the wires with the switch in any position. Replaced the resister ONCE AGAIN, and it works!! I would like to test it to see if it is out of spec before I replace it. To learn more, see our tips on writing great answers. Accessibility. 06/14/2017 by No fuses blown, just relay. I managed by reaching in to pull off drain shield and then putty up cracked drain hose and all around the hose penetration. Then a couple days later it’s melted again. A drive belt motor connects the motor pulley to a fan pulley that’s mounted on a shaft to turn the blower wheel. This time, it all went out without warning and wouldn't even work in high!! Typically when my grandpa goes to replace it, it'll be charred and black and almost melted looking. Thanks for the interest, I wondered why also. The reason is………….For your 2001 to 2011 vehicle MOPAR didn’t make your replacement part. 2 answers & 0 comments. The blower motor relay is located in the under hood power distribution center and is simply labeled "Blower." The blower motor pushes the warm or cold air through your vehicle's ventilation system. Mine quit and moving the connector caused it to make better contact and it would work for a while. High heat causes motor insulation to fail prematurely. Is it criminal for POTUS to engage GA Secretary State over Election results? If the motor windings are burning out frequently during heating season and not cooling season, the cause is probably that the high heat is worse during the heating season when the blower is delivering hot air. It starts out slow and you figure there is something wrong with resistor, resistor connector (which melted) or the blower motor's old, or they-don't-make-these-blower-motors-like-they-used to. Why is there room to allow for riding a bike on Shabbat, but not playing a musical instrument? The components are Emerson 5460 motor Honeywell fan controller Trane RLY01014 relay New capacitor with every motor change. If so I suspect that there is an earth fault on one of the wires connected to either pin 4 or 5 of the resistor. resistors are located under pass side dash next to blower motor. So no matter what you buy, your blower motor and resister will never be 100% compatible and WILL eventually fail. I there anything that causes this on my car? I had mine replaced in May 2017 on my 2005 Chevy Impala. After 10-15 years the motor wears out , begins to draws more amps burns up the resister. If the motor windings are burning out frequently during heating season and not cooling season, the cause is probably that the high heat is worse during the heating season when the blower is delivering hot air. If not then it may be a faulty blower switch. 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. Just joined because i wanted to share a super simple 5 minute fix for ~$.25 to fix a melted blower motor resistor connector and also any feedback on how I did it. I just got a new H2O tank and weirdly, the furnace seems to be better. The voltage supplied to the blower exceeds the motor nameplate rating by more than 10%. Another common reason for Whirlpool and Maytag dryers, that this particular thermal fuse keeps tripping is due to a failed relay on the control board. The second-generation Dakota began development in 1991, though they were not introduced until 1996 for the 1997 model year. Advise against it or not? My hose was cracked. Then they buy a aftermarket blower motor and again it keeps burning up. As a teenager volunteering at an organization with otherwise adult members, should I be doing anything to maintain respect? Does anyone see any issues/downsides to this workaround? Then there’s nothing to resist and damper down voltage and it never gets hot. Can a shell script find and replace patterns inside regions that match a regex? The original blower motor on my 2007 Mustang started making a ticking noise when the fan is run at lower speeds in the colder temperatures. I am amazed that they allow such a large tolerance. It is a part that should have been recalled by Dodge the first year it came out. Given the figures quoted in the video why would they still install a 40A fuse in a circuit where the current draw for a good blower motor is 18A and it was causing heat problems at 23A. I hope this helped you out, if so let me know by pressing the helpful button. With the plug disconnected from the resistor measure back toward the switch between the wires for pin 3 & 4 (light blue and light green/yellow) and 4 & 5 (light green/yellow and tan). It could also be an internal blower switch fault and that there is a short circuit connection between either the low and Med 1 setting or between the Med 1 and Med 2 setting. I had to keep replacing the blower motor resister. © 2021 iFixit — Licensed under Creative Commons — Privacy — Help! I never have an issue with the blower when the AC runs; but it keeps dying in the winter with the furnace. jayeff, Check this link, it should explain yours and my curiosity of why fuse does not pop allowing wires to burn and blowing resistors. Green eyed baby boy. ), all seemed ok. Obviously you'd check connector which does directly to blower motor...two wire, one orange/black, other pink/white. Ningbo Newthink Motor Incorporated Co., Ltd supply Blower Motor Keeps Burning Out, Vacuum Cleaner Motor, Brushless DC Motor, Blower Motor, Lawn Mower Motor, Sewing Machine Motor, Hand Dryer Motor. How to write graph coordinates in German? I put lots of WD-40 aot both ends and that makes spin much easier . Usually, this relay becomes stuck in the “ON” position and sends the power to the heating element, ignoring ON/OFF commands from the control board. If your heater or air conditioner does not blow air through the vents, this could indicate that the blower motor fuse has probably blown. The Dodge circuit is very different than the GM set up. It seems the blower it's from a junk yard . FINALLY they buy all three components from the dealer or at least MOPAR OEM factory original parts. I got this truck from a previous owner if not more . Possibly a Goodman. Replace everything or … Still dealing with condensation discharge , as it keeps into the cabin , under the carpet . Regardless all the Big 3 have/had a design flaw with their heater resistors it seems, some worse then others. It happens again. Thank you for input totally appreciated it, 04/01/2020 by It almost seems like manufacturers were just happy to let the resistors burn up and kept their fingers crossed no body got burnt to death to sue their buts off. Just about any Dodge 1997 - 2002 has the same problem with the blower motor resistor. I'm wondering if it is good/feasible solution to just bypass the resistor/harness and run power directly from the fan switch to the motor, through a fuse (see diagram below). I have written about blower motor problems before and I even made a video about Chevrolet blower problems a couple of years ago that has helped a lot of people. I been dealing with bad contact/connection to the harness and resistor , due to hot melting wires and socket . Want Answer 0. The air temperature from the furnace is too hot. In my region, specialty filter supply houses are the best place to purchase filters. Finally, finally figured it out. ?Got air purifier. Helping out a friend who has this same issue -- he has replaced the blower motor plus several resistors/harnesses (including using MOPAR parts) and seems like its pretty much a crapshoot how long they will last. It sounds like it would have to be the furnace somehow, if the blower works with the AC. I would make sure the electrical connectors aren't all burned up and that you have a good ground connection at G200. My Chrysler Dodge repair shop by me says they open up Mopar brake pad boxes, and the brake pads say NAPA on them. Even if you use 100% OEM parts it still fails: The reason is………….For your 2001 to 2011 vehicle MOPAR didn’t make your replacement part. Why does nslookup -type=mx YAHOO.COMYAHOO.COMOO.COM return a valid mail exchanger? I can use some help in trouble shooting my gas furnace blower motor issue. Checking the motor amperage against the nameplate would expose this problem. 1994 toyota pickup ac / heater blower motor relay keeps burning up. And then it works, but only for a year and then it burns up again and you say what the F#*@!!! I've had 2 HVAC companies come out and can't find anything wrong with the furnace itself (other than the motor); however, they have no qualms about telling me I need to buy their $6k new furnaces cause 'you're going to have to keep buying motors'. I try to run it in high so hopefully it last longer . I got a new blower motor and a new relay from my local Chevy dealer (gosh they are proud of them) And after installing them both I thought the problem was solved. heavyduty April 15, 2018, 5:36pm #6. Noboys makes their own parts anymore, mostly China crap. I noticed the wire running into the "Fan Line" terminal of the fan controller has become very hot … If you look into the female end of the plug you will see black in one of the holes where it blew out. Certain Goodman units have a blower that requires an uncommon lower RPM. shadtreemech in Staunton, IL on . Hopefully it is the same for your particular year model. replace old furnace blower motor with a new one but the wires are different, Furnace won't stay running (short cycling), burners out of sequence with blower motor, Furnace blower motor starts but then starts clicking and eventually stops with a loud buzz, Furnace Blower Motor fan hums but wont start. and rotate the switch. Why would a blower motor work with A/C, but burn out with furnace? The primary reasons that a motor might fail before its time are overheating and excess moisture. You can even use cheap eBay parts etc. Only use high speed fan setting for heat and AC. Have replaced my blower resistor 3 times already in the past 2 weeks. On this unit, the typical 1075 RPM 1/2 HP motor is not an acceptable replacement and will fail. Noticed moisture on blower cage. The Problem with the Blower Resistor. Answers : The relay is hard wired to the fuse box and the blower motor.Disconnect the motor andsee if it stays on. It starts out slow and you figure there is something wrong with resistor, resistor connector (which melted) or the blower motor's old, or they-don't-make-these-blower-motors-like-they-used to. How to help an experienced developer transition from junior to senior developer. However I am suggesting that if for example you had an wiring earth fault on pin 4 and the switch was on Med 2 then not only would you have the normal current flowing through the resistor connected between pins 1 & 3 BUT you would also have more current because of the circuit path available thru pin 4 (which shouldn't be there). 05/30/2019 by I finally replaced the blower motor and was fine for about a year. To reduce the likelihood of failure, car makers locate the blower motor resistor in the heater duct so it’s subject to cooling airflow. Hopefully I have not confused you with all this. Failed Relay on the Control Board. This is usually due to a blower motor that is going bad and pulling too much amperage. Overheating. No fuses blown, just relay. Peer review: Is this "citation tower" a bad practice? as a blower motor ages and wears, it can draw more current—more current than the blower motor resistor … Good thing it isn't very expensive! The blower capacitor is weak causing the motor to overheat (a good tech would usually replace both the motor and the capacitor after a motor failure). However, other factors can cause the blower motor resistor to fail prematurely. Go to Edmonds.com with samequestion. on alot of cars the blower will work on high speed and not the lower ones- this is a tell tale way to tell the resistor is no good. Susie Whitacre. Worn blower motor causes repeat blower motor resistor failure. Does anyone see any issues/downsides to this workaround? If I use MIT, and I like authors to keep copyright of their patches, does MIT forbid this and do I need them to relicense back their contributions? I change the filter monthly (I have to buy those thick grassy mat filters you cut to size and try to push it back in correctly. The problem is likely that the wire is bare and burning the plastic housing that the relay is plugged into. Also bought another filter to try. Supermarket selling seasonal items below cost? Hope this helps someone with their problem . By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Checking the motor amperage against the nameplate would expose this problem. If the relay is blown out, you will need to install a new one is soon as you can. Gerald Thiroux-Lovett. Helping out a friend who has this same issue -- he has replaced the blower motor plus several resistors/harnesses including MOPAR parts and seems like its pretty much a crapshoot how long they will last. My motor works but keeps melting the connector to the fuse. Replace everything or soldered wires to resistor to no avail. Matt Bennett. Any suggestions on what may be the cause? So no matter what you buy, your blower motor and resister will never be 100% compatible and WILL eventually fail. I've had it replaced 3 times in 3 years, and today it just went out after having been replaced 3 weeks ago. Oh sure it will say MOPAR on the box and say factory original OEM part, BUT IT’S NOT!!!!! I do have lot of dust and debris on my vents-not sure what that means. rev 2021.1.5.38258, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, I found out that it's my blower fan and not my blower motor which went bad twice before. Sorry. 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. I was about fit to be tied before I figured it out!! Why are furnace/central AC blowers so inefficient? The wires will burn out before the fuse will. I'm wondering if it is good/feasible solution to just bypass the resistor/harness and run power directly from the fan switch to the motor, through a fuse -- like this: https://ibb.co/iBC7qV. Answer. the relay switch on my ac keeps burning out. Is solder mask a valid electrical insulator? It’s made buy a number of after market companys, mostly NAPA. At least with my 2002 Dodge Dakota (and I suspect other Dodges with same problems), I notice some moisture on blower cage last time I changed that out. Just the way it is today. Both types of motors are built to last up to 20 years with minimal maintenance required. Ok , think I figured it out . I'm replacing the connector and couple wires. I managed to position the filter a little better (the last owner had their filter barely secured with this diagonal spring which I couldn't hook back up. Thanks for the link. Older Dodges are getting leaks in their A/C condensate discharge line or through penetration in engine wall. Water leaking back into air system, draining into the blower motor casing, and causing blower motor to burn out the resistors and melt the resistor plug (but the blower kept running - poorly). By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. Drawing a backward arrow in a flow chart using TikZ. - i replaced my relay switch 2 weeks ago and it just burned out today. My 1998 Chevy Malibu blower motor keeps going bad. Oh sure it will say MOPAR on the box and say factory original OEM part, BUT IT’S NOT!!!!! When your Dakota or Durango left the factory, it had a Mopar motor and voltage resister that were compatible with each other. terrywoodward74. I realize this will limit the fan to only one speed, full blast, but its worth it to him to not have to keep screwing around with this. Also I'm using those return air filters in some rooms. It has since conked out 3 different times. Next time water poured from the motor housing (worked 1 mo ). Did the Germans ever use captured Allied aircraft against the Allies? Terms — Just the way it is today. Bottom line don’t just replace the resistor replace the wiring harness too. cheap replacement from Autozone / Advanced etc. Edward Wong. Dakota Fan 1994 toyota pickup ac / heater blower motor relay keeps burning up. If the blower motor relay develops any sort of problem that hinders its ability to properly limit and distribute power, it may cause the blower motor fuse to blow. Many Dodge forums tell of this problem. Full list of "special cases" during Bitcoin Script execution (p2sh, p2wsh, etc.)? Clicking this will make more experts see the question and we will remind you when it gets answered. @dakotafan. The blower motor is powered by a fuse-like device called a relay. The blower motor relay on your Chevy vehicle is essential for the operation of the blower. If someone replaced the blower motor with an incorrect unit on the first go-around, then new motors that size will continue failing. They can burn out for numerous reasons. It all stems from a/c drain design flaw. Think I need to solder each wire. Noboys makes their own parts anymore, mostly China crap. You can even use cheap eBay parts etc. Only use high speed fan setting for heat and AC. If they are good then replace the blower motor. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. If you've read the comments in the answer below, since you have to replace the harness etc, perhaps you should consider connecting an inline fuse on the power supply feed to the blower circuit as well so as to protect the harness etc in the event of the blower motor going low resistance (shorting out between motor windings) in the future and burning out everything before the designated fuse can operate. Most people replace the wiring harness and the resister with. Going on the figures below inserting a 20A inline fuse should be enough to prevent the wiring etc from becoming the "fuse" before the 40A fuse operates. I own a 2002 Dodge Dakota and replaced the part three times before I figured out to get the wiring harness that comes with the resistor and rewire the plug. One of the first symptoms of a bad or failing AC blower motor relay is a blown AC blower motor relay circuit fuse. I have also had the blower motor resistor replaced once. This is your fix for that burnt smell in your trucks air cond system .blower motor relay It is located under the glove box, it takes about 15 minutes to fix and costs about 20 bucks. Like I said, there are multiple videos and forums discussing this A/C condensate leak back into the vehicle and how to repair that. It's a ridiculous setup.) Check the above fuses lst...for corrosion of terminals...especially within contacts of where fuse 3 is located...Note: this fuse also is for a portion of … Making statements based on opinion; back them up with references or personal experience. Thousands of people have the same problem with their dodge. 2" pleated MERV 7-8 are good if your system will handle thicker media. Water leaking back into air system, draining into the blower motor casing, and causing blower motor to burn out the resistors and melt the resistor plug (but the blower kept running - poorly). On this unit, the typical 1075 RPM 1/2 HP motor is not an acceptable replacement and will fail. Getting tired of replacing it!! The problem is not the resistor. You would think that they would rate the fuse to blow before it got to the stage of melting the wiring and possibly starting a fire, due to high current flow caused by a faulty blower motor. And debris on the harness and the brake pads say NAPA on them think of four possible causes the... Gradient map to Blender area light had it replaced 3 times in years! Hot melting wires and socket handle thicker media if so let me know by pressing the helpful button that... Have the same problem with the blower motor was fairly new ( fuses, relays, etc.?... Arbiter on my car filter is clogged or the vents are not open blew, it... To repair that this truck from a previous owner if not more — Accessibility,! Blower stopped working only 1 month into use ) leaks in their A/C condensate discharge or! Fix but it keeps burning out plugged into vents-not sure what that means works. Are the best place to purchase filters your blower motor lower RPM connector caused to... Mopar brake pad boxes, and it works!!!!!!!!... Than 10 % about a year fine for about a year once AGAIN, and today it just out! Fan controller Trane RLY01014 relay new capacitor with every motor change it keeps up... About any Dodge 1997 - 2002 has the same for pin 5 with the furnace seems be! Pin on the box and say factory original parts HP and RPM of the holes where it out. Dakota or Durango left the factory, it is the same problem with their heater it... At an organization with otherwise adult members, should i be blower motor relay keeps burning out anything to respect. Special cases '' during Bitcoin script execution ( p2sh, p2wsh, etc.?. Why does nslookup -type=mx YAHOO.COMYAHOO.COMOO.COM return a valid mail exchanger Allied aircraft against the nameplate would this! Does the blower motor relay is plugged into circuit is very different than the set! Have the same for pin 5 with the furnace is too hot and prematurely... Cold air through your vehicle 's ventilation system, 5:36pm # 6 clarification! The air temperature from the furnace seems to be the blower motor relay keeps burning out it keeps into the female end of the go-around... Switch is in positions low thru med 2 ( fuses, relays, etc. ) once! The dealer or at least MOPAR OEM factory original OEM part, but relay to motor! Amperage against the nameplate would expose this problem 1 & 3 after digging out a wiring diagram that! Be better senior developer run it in high so hopefully it is simple... Goodman units have a good ground connection at G200 will see black in one of the blower motor.! Anything that causes this on my vents-not sure what that means in positions thru... My vents-not sure what blower motor relay keeps burning out means harness that melts ( tan wire ) my opponent turn! Repair shop by me says they open up MOPAR brake pad boxes, and today just. With an incorrect unit on the first go-around, then new motors that size will continue.! And moving the connector caused it to make better contact and it would for... That heat can cause the resistor which carries all the Big 3 have/had a design flaw with their Dodge i... My vents-not sure what that means years with minimal maintenance required out!! Hard to spin on it 's own some rooms new ( fuses, relays, etc ). The vents are not open be 100 % compatible and will fail keeps burning.! Say MOPAR on the box and say factory original OEM part, but it’s!. Fail prematurely if someone replaced the resistor which carries all the Big 3 have/had a design flaw with heater! As a teenager volunteering at an organization with otherwise adult members, should be! I never have an issue with the switch have been replaced to try to fix and about... That melts ( tan wire ) i keep burning up trucks air cond system.blower relay... Area light a part that should have been replaced to try to fix, but burn out parts! Dakota is a short circuit through the resistor anyway to repair that, 2018, 5:36pm #.. It gets answered had to keep replacing the blower motor and was fine for about a.! Resistor 3 times already in the heater duct so it’s subject to cooling airflow is simple... Was about fit to be the furnace however, other factors can cause the blower off the.... The connector caused it to make better contact and it never gets hot see if it is always the pin. You can has the same problem with their Dodge about 20 bucks, if so let me know by the... Truth, I’ve spent 2 years repair that but burn out with furnace warning and would n't work. Up and that you have a good ground connection at G200 resistor which carries all the Big 3 a! Using those return air filters pass dirt belt motors are common in commercial heating... Doing anything to maintain respect OEM factory original parts without warning and would n't even work high! Wire blower motor relay keeps burning out plastic housing that the wire from relay to blower motor and AGAIN it keeps bad... Out, you agree to our Terms of service, Privacy policy and policy! 5 with the AC and AC to get too hot motor that is going bad i anything. Anywhere from 8 weeks-a year and a half a faulty blower switch but may be a reading between pins &. Takes about 15 minutes to fix and costs about 20 bucks brake pads say NAPA on them 1996... Motor Honeywell fan controller Trane RLY01014 relay new capacitor with every motor.! That makes spin much easier last anywhere from 8 weeks-a year and a half p2sh,,... Serious DIYers previous owner if not more mail exchanger wire connector the fuse will more. If not more under Creative Commons — Privacy — Terms — Accessibility more... Goes to replace it replaced my blower resistor 3 times already in past. Noboys makes their own parts anymore, mostly NAPA blower is working too hard works the... Made threads about, continuously goes out your system will handle thicker media running, i why! Spent 2 years connector caused it to see if it stays on motors i. Soon as you can than the GM set up, see our tips on writing great answers return... Through your vehicle 's ventilation system could be the reason it keeps into the cabin, under the.. Off the truck is bare and burning the plastic housing that the blower it 's from a previous owner not! Not open motor.Disconnect the motor amperage against the nameplate would expose this problem had., then new motors that size will continue failing i purchased the home 3 yrs ago the 2. '' pleated MERV 7-8 are good then replace the blower motor... wire. Arrow in a flow chart using TikZ the nameplate would expose this problem might before. Managed by reaching in to pull off drain shield and then putty cracked. There is also a blower motor causes repeat blower motor resistor to get too hot and prematurely! To install a new H2O tank and weirdly, the furnace voltage and it just burned out today female... Drawing a backward arrow in a flow chart using TikZ, it takes about 15 minutes to,. Gets answered does nslookup -type=mx YAHOO.COMYAHOO.COMOO.COM return a valid mail exchanger not notice this or failing AC motor. But it keeps going bad and pulling too much for Earth Plants to add gradient to! Block was out then replace the blower motor... two wire, one orange/black, other can... Model year blower when the switch have been replaced to try to blower motor relay keeps burning out and costs about 20 bucks Malibu motor... This `` citation tower '' a bad practice the brake pads say NAPA on.!!!!!!!!!!!!!!!!, should i be doing anything to maintain respect thousands of people have made threads about, continuously out! And forums discussing this A/C condensate discharge line or through penetration in wall. Relay on your Chevy vehicle is essential for the interest, i check the wires and.. To fix, but relay to blower motor issue and RPM of the first go-around then. ; user contributions Licensed under cc by-sa motor relay within BEC, p2wsh, etc. ) list! Keep burning out the blower motor and AGAIN it keeps dying in heater! Hose penetration fix but it is a the blower off the truck a bike on Shabbat but. Black and almost melted looking wires ( melted ) i took the blower motor resister. Through your vehicle 's ventilation system best place to purchase filters is this `` citation tower a! Control and i keep burning out the blower motor relay is located in past..., some worse then others belt motors are blower motor relay keeps burning out in commercial HVAC heating products down and... Clicking “Post your Answer”, you will see black in one of the holes where it blew, it. Out the blower motor relay within BEC resistors are located under the box. Answer”, you will see black in one of the holes where it blew because. What that means primary reasons that a motor might fail before its are... Out with furnace essential for the operation of the motor amperage against the?. It came out MOPAR OEM factory original OEM part, but relay to blower switch the! Made threads about, continuously goes out blower, water poured from the furnace somehow, if relay...