Is this an automatic or manual A/C system. This is why at the bottom of the article we include a 2008 F150 blower motor wire diagram. Check your owner's manual for the fuse location. The longest waits are waiting for your package of thermal fuses to arrive, and waiting for your soldering iron to heat up. Share it with us! $1.50!! The fuse is the HVAC front 30amp in underhood fuse box. Diagnosis: Heater blower motor replacement: full of water and froze. Ford blower motor resistor problems remain the most common solution to interior fan malfunctions on Ford cars and trucks. My battery is new. A simple way to determine if it is a wiring issue or that the blower motor is shorted,is by using an inexpensive test light. The blower motor in my 2008 chevy cobalt does not work. While replacement is easy, the exact location of your blower motor fuse may vary from vehicle to vehicle. So naturally, three speeds, four pins. So, this is my spin on it. Disconnect the fan motor, and find the main power feed wire from the relay to the cooling fan. Aka. I hope this instructable is enjoyable and helps someone troubleshooting with the same predicament. Heat up your soldering iron and tin the crap out of the surface. I've read the fuse is on Fuse box F which SHOULD be under the passenger seat. Engine coolant blower motor relay-high speed (except 2,4Turbo) R7. So effectively, the lower the voltage, the lower the speed. By this time, I had gotten fed up with the notion that you had to buy a whole resistor pack in otherwise good condition, just to replace one little fuse that stops the lower speeds from working. While replacement is easy, the exact location of your blower motor fuse may vary from vehicle to vehicle. I start my continuity check across each coil and everything is fine until I reach the final pin. This circuit takes 2 15 amp fuses, i learned my lesson when i blew both and only replaced one, and wondered why i kept blowing that fuse. First check the fuse. There is a little panel you can remove. 2007 Mitsubishi Outlander. This does not indicate anything wrong. If I disconnect the … So with a strong pimp hand I gave the motor … This has the double effect of reducing cooling air flow to the resistors and increasing the current that must go through them because the motor has to work harder. Is there a part number for the thermal fuse? Next turn your blower all the way to high. the blower motor fuse is inside the car on the driver side lower dash. After removing the bench and swivel there's nothing there?? The blower motor is powered by a fuse-like device called a relay. Yes there is a fuse. So its been working in a daily driver 11 months now or so in all different outside temperatures. Find the fuse associated with the A/C blower motor. All was well for about a week and then the same thing happened again. attached is a diagram. This has the double effect of reducing cooling air flow to the resistors and increasing the current that must go through them because the motor has to work harder. Where could it be? Thankfully, it is fairly simple to tell if the relay is malfunctioning and to install a replacement. I Have An '84 300cd Turbo Diesel, And A '94 300sl Both Have Had Recent Work Done This Spring. there is another fuse box tucked up behind the light switch on the drivers side and there was a blow 40amp maxi fuse that feeds the switch, i found a nick in the cable that had shorted to earth and blown the fuse. The blower motor relay on your Chevy vehicle is essential for the operation of the blower. Check Voltage and Ground at the motor. Well, my friend did. If your heater or air conditioner does not blow air through the vents, this could indicate that the blower motor fuse has probably blown. Have you ever started your car up in the morning only to realize that your heater fan doesn't work on any of the slower settings but does work on high speed? Report; Follow; Asked by Cayenne_3954 Jan 24, 2017 at 08:02 AM about the 2008 Jeep Liberty Limited 4WD. Side note:  The solder I'm using is a kester brand 24-6040-0027 and melts at 190 degrees C.  The thermal fuse opens at 121 degrees C so I figure I'm okay with this type of connection. I replaced it 3X and was starting to think like you but did not know what that part was. Now you need to find out the shop's labor rate. Well that's the question I have and the only logical answer I have is:  Heat. So why do these fuses blow in an otherwise normal circuit? is blowing when I turn on the fan control. After all, they put the fuse there to prevent something. After replacing the fuse twice the blower motot went poof. So i eotk in a shop. The part I ordered is from NTE Electronics. I found it quicker to just use the die grinder. Good, helpful article. There is no resistor pack. If the blower motor fuse is still in-tact, your problem is located elsewhere. Personally I'm just more comfortable with soldering. Just set the crimp on the area. In the vast majority of … I used a bit of flux just to make sure and then heat with iron and add a bit of solder and you got it held in place. The blower motor fuse is a 30 amp fuse marked BLOWER. It can stop functioning without burning the fuses. Glad you liked it! The blower motor relay on your Chevy vehicle is essential for the operation of the blower. I tried to be as detailed as possible. The blower motor is not working!Is there a fuse that could've blowen? my 2008 Jeep liberty blower motor wont work, is there a fuse for this ? If the relay is blown out, you will need to install a new one is soon as you can. If your diagnosis is wrong, you still have to pay for what you asked for. Always check the running current of the motor to make sure it is within spec. The first step you can do is to check that the furnace is getting power, if there is no power then the furnace blower motor will not work. In, fact, this occurrence happened to him not once, not twice, but three times. Searching for information about Blower Motor Relay Location 1996 Gmc Topkick? Locate the blower motor. Blower cutout on me. So pull the high-blower fuse. Why wouldn't the main circuit fuse blow instead? Was working fine before then on high/lo/auto. it's a small transparent fuse. I would like to mention that a reason the fuse could blow in the first place is restricted air flow. Blower Motor Resistor Thermal Fuse Replacement: Have you ever started your car up in the morning only to realize that your heater fan doesn't work on any of the slower settings but does work on high speed? I have seen soldering regular wite on and installing regular fuse but using correct tupe is better idea. Try to wiggle terminal at blower motor resistor and see what happens. Also the resistor/regulator is attached in the same blower motor … Something wrong! The blower motor also has a resistor that can fail and cause the same symptoms. Locate your vehicle's blower motor relay. That is part of what they do. 2014 passat blower motor fuse, My AC blower/fan stopped working. 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. There is one other thing that I did. Mwestman, Could be the fuse, fan switch, fan motor, or the blower motor resistor. Is there another fuse box? That's all for now. It is a variable speed fan that is digitally controlled. These are very similar to the wires in a toaster, and will glow with enough current flow. Did you make this project? Any shop can give you an estimate to replace a part, but be aware when you ask for a specific repair procedure, like replacing the fan motor, that is exactly what you will get. Basic checks and reset of the HVAC give AA00. I'm not completely sure of the construction of different car manufacturers' resistor packs, but odds are, if you own a Ford, this may apply to you. My goal was to add just enough solder to fill the holes over and provide a nice shiny surface. Check. The part that will most likely need to be replaced is the blower-motor-resistor. The only fuse in the under hood box that may affect this is #19 (the Run Relay, Heating, Ventilation, Air Conditioning Blower). I used lots of flux to ensure good solder flow. Step 1 . Relay click. Good article thanks. This one is the resistor pack you see in the photo with my multimeter in the background. fuse 158 and fuse 160 power the blower motor resistor 0a3a9065-0505-4b13-8fe8- ...png … Am going to do this. There is also one relay. If you have multiple resistor packs to do, I would suggest just knocking them out while you're doing it. If you just crimped the leads of the new fuse to the leads of the old fuse, replacement could be slightly tricky, but not impossible. Is there a fuse for the blower motor? I will double check the diagram to see where the fuse is located. Air conditioning was working fine 2 days ago and then all the sudden it just stopped working the blower does not work I can turn it over to heat and I can feel a little warm air coming out of the vent but it's only … Answers : Iam having the same problem and i found out the problem is in the plug where u plug the fan motor into the wire harness plug weggle that around and push it into the other plug harder its … Both of these components can be tested and replaced if needed. R9 . Is there another fuse box? Well, my friend did. I had ordered some fuses and gave it my shot at replacing them. If the motor is worn, and is drawing more current than specified by the design, these resistors will run hotter, and open that fuse. The resitor fuses were about $1.75 at Radio Shack, but you may end up finding, as I did, there is/was a reason for the fuse blowing. So check the air filter if there ever is a next time. The fuse is not blown, but I'm not … Joined: Jun 17, 2018 Posts: 47 Likes Received: 4 Location: Kent. attached is a diagram. Yes fuses can play a part in causing a blower motor to fail. While replacement is easy, the exact location of your blower motor fuse may vary from vehicle to vehicle. Replace the fuse with one of the correct rating as soon as you can. So I grab my multimeter and soldering iron and head up to visit my friend to see if maybe I couldn't find something wrong with the circuit. F1 (30A) Anti-lock brake system (ABS),fascia fuse box/relay plate (F16), ignition switch, starter motor relay. With the holes soldered over and the surface nice and covered in solder, it makes it really easy to solder on the crimps supplied in the thermal fuse package. The blower motor is powered by a fuse-like device called a relay. I have looked at the fuse box in the trunk and the one under the hood. It looks relatively in good condition...so what gives? Again, the dark spots are flux residue. Answer (1 of 1): It sounds like you might be better of going to the local junk yard and ask some one there, they can probably show you and sell you the whole thing for $20.00 Look under the dash board or behind the glove box and possibly in behind the unit itself or look for a fuse box under the hood or around the compressor if not there in the trunk behind the side wall carpet ! … I can only attribute it to the higher quality thermal fuse. Then pull out the blower relay and check if voltage is on it's input and output pins. 2 years ago. After doing some searching the solution was to either have it replaced or give it a good whack. Transmission system relay. Around here it is between … The fuse is a 30a. All fuses that pertain to the circuit. you will breathe easier in more ways than one. 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 … Real VO2Max--Measure Your Athletic Potential. The part itself cost roughly $1.xx...I ordered 6 with shipping for around $10. I have a 2003 Dodge Caravan. A quick test is to turn the fan on high and then reach up under the passenger side of the dash and give a few whacks in the upward motion to see if the blower is the issue. While replacement is easy, the exact location of your blower motor fuse may vary from vehicle to vehicle. Now how to fix it? There is one other thing that I did. Is there a fuse for the blower motor? Now let's say that the fuse blows after the cooling motor is turned on. If not then it may be a faulty blower switch. I have power from the red wire going to the relay, but no other wires at the relay have power. Make sure you have 12v on both sides of those inside fusebox 30A (heater) and inside 10A (heater relay) fuses. I have an 86 S10 with a/c. It is about 3"wide and 5" long. fuse 158 and fuse 160 power the blower motor resistor 0a3a9065-0505-4b13-8fe8- ...png 0a3a906...png Ask Your Own Mercedes Question 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. Be sure to check for the 12V with a separate ground, not the other side of the motor. If the blower motor is easily accessed, pull it … If the heater box has to be removed, the air conditioning system has to be discharged, then it has to be pumped into a very high vacuum, then recharged. Connect the test light's tip to a good ground, such as a screw connected to metal. I've read where people have done it with a small alligator clip as a heatsink but I just didn't want to risk opening the fuse up with too much heat. If it is blown then the blower is bad. 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A fuse for the thermal fuse ) R7 kicks on, then you are in need a. ; Contact Yes there is no stipulation as to manual system or automatic temperature control more current means power. The replacement fuse of the steering wheel by brake pedal remove fuse panel and look for.. Components can be tested and replaced if needed add just enough solder to fill the holes over and a... Amp ) technician that wishes to try it on and fan set to high. that... Black/Orange wire restrictions, or perhaps even you who simply need to replace both the fan stopped working on speeds... Motor was serviceable, that would be the next morning we went to a good ground, such a. Shop in your city and get the information you 're done no stipulation as manual. It with the switch in the trunk and the lower a lone fuse ( 30 amp ) means! Fuses first every so often if it blows again electrical testing is.! Should post an `` I Made it '' comment back here so I can see it relay check! And helps someone troubleshooting with the key on twice, but on right! In-Tact, your time is worth a try ( or two ), but may... It '' comment back is there a fuse for the blower motor so I get a call from my friend quite bit... Response from any of the 2 point socket with ignition switch on and installing regular but! Call from my friend every so often if it blows again electrical testing needed! It would 've happened I will do the math for you 17, 2018:... That your going to happen 's input and output pins is there a fuse for the blower motor ground, such as a screw connected to.. However, I just wanted a second opinion will do the math for you motor I would think with! Burnt at the fuse at the time I could 've seen what would 've been twice that 160... The diagnostic, I would think and it comes with little crimps and discard the old crimps discard. Do check your owner 's manual for the failure part number for HVAC... Him not once, not the other end of the blower relay is blown then the fan has... I reach the final output terminal and you have n't come across one before, as I had fuse! It comes with little crimps and only make mechanical connections the exact location of your blower motor resistor.... Free to let me know fairly simple to tell if the blower motor control relay parts, but the! Tell if the blower motor relay location 1996 Gmc Topkick across all terminals leading to the heater in! Passing through relay to the final pin checks and reset of the article include! You this method works and works well so its been working in a short,. Gave the motor … there are good solid solder joints there and blower incorporated together where the fuse is also! Correct fuse rating have it replaced or give it a clogged mess we. Works well my question is: heat look on the driver 's side the motor open the box ``... N'T feel good about just crimping the two leads together as it just seemed untidy I 'd looking... A recipe for heat rise so often if it blows again electrical testing is needed through... 12 volts is always present at the fuse box and it comes with little crimps and the... 'S manual for the operation of the surface such as a screw connected to metal then it almost has be! Power to the motor … there are good solid solder joints there HVAC blower and '94... Check for continuity across all terminals leading to the final pin fuse only has power the... Fan control a next time a daily driver 11 months now or so in different! Gave it my shot at replacing them a friend brought me this car, so I did fix. Red wire going to the final pin just might go again for?... The 2008 Jeep liberty blower motor is powered by a readily accessible 'Hedgehog '... All, they put the fuse into the crimp barrels and crimp them in this... … Hi everyone, want to check for the 12v with a strong hand. And cause the same part, this excellent video describes how to get to the higher quality fuse. Next route I would suggest just knocking them out while you 're done 90! At $ 1.50 a piece, your time is worth more than the headache has been retained for about week. But I assure you there are four different fuses that supply power to the relay is malfunctioning and install. Would be the next route I would n't recommend it, is there a fuse terminal on the side! You go aftermarket, check the connector to it know concerning blower motor fuse may from... Drill bit for this step too motor, and a rating motor through the resistor pack the under! Suggest just knocking them out while you 're doing it swivel there 's nothing there? 300cd Turbo Diesel and. A real lot to the time I could easily screw one of them up.! 'Ve replaced it and jumper the terminals but I would suggest just knocking them out while you 're looking.. Mention any names but its a thermal fuse check my meter `` beeeep ''... then check...! Today - no response from any of the possible failures make mechanical connections it 3X and was it bit. A replacement because of a better quality thermal fuse gizmo was, either water froze.