How To Fix 2001 Ford Focus AC and fan problem

[@andrwmnk]

Thank you so much! Worked perfectly. My fan blower only worked on "4" and didn't blow cold air. Replaced the part and all now works fine. Saved me hundreds.

[@michaelhansen6802]

This worked perfect for me on a '04 Focus. Dropping the glove box allows you to see the resistor, but for the bolt you just reach up underneath with a socket/ratchet. Just weasel your arm up the floorboard onto the firewall around the dropped glove box. At first I thought it was contained in a compartment (but not the case). Once I figured this out it was easy. Ford Part was 3M5H-18B647-BA. I picked up Part No. BWD RU1120 $15 replacement at O'Reilly.

[@geoffreywright3153]

Total life saver my guy! I was quoted from 3 different shops at 275 to fix, did it myself for 15!

[@friedchicken1]

Also make sure the blower motor is not opposing resistance if turned by hand or you'll blow the new resistor as well over time.

[@kevinisidorkk]

Dude I was stressing! since I did new Serpentine belt this last weekend while changing my motor mounts. I thought I messed up. AC button/light wasn’t even turning on. Took out the old blower resistor, had cracks and corrosion. Placed new one and it works like a charm! Thank you! Much help! 2003 Ford Focus ZX3 2.0i (Zetec)

[@CameronScottsChannel]

Kevin Isidorkk glad I could help, those motor mounts wear out way too fast, I replaced three over 100k miles!

[@stephendee7839]

Good video. When the blower resistors fail, this can be a signal that the blower is drawing too much current. Pull the blower down, clear out debris from the housing and oil the bearings. Or replace the blower motor if it's too bad. If this is left too long with only the high-speed circuit working, the extra current to push the fan can overstress the wiring leading to bigger issues.

[@friedchicken1]

Thank you. That is indeed good advice and I will do that!

[@heribertomendez8759]

awesome video fixed my 2002 Ford focus cause of the same problem thanks to this video saved myself 120 from the mechanic not including the part.

[@handiman5]

Fantastic! You just saved me $300 to $400 repairs at the dealers!!

[@kewigirl3]

Wanted to say "thank you"!!!!!!. your video saved me lots of money.

[@JamesChristmas]

Thank you so much for this video. I have 03 Focus SVT. 14 bucks and I am back into cold air!!!!!!!

[@willmiller7794]

Bottom line ... thanks. Story goes that the air conditioner wasn't working and I was having a problem with the vent selector. I managed to get the vent off the dash but air conditioner would only engage on low speed. Problems with my 2004 Ford Focus has me limiting any repairs and an air conditioning tune up is just too costly. I googled the symptoms and after viewing a few of the 'hi pressure' - 'lo pressure' videos I was pretty much resolved to forego any further action but the fan blower issue rang a bell from the other videos. I viewed your video and decided that I'd go the expense of replacing the heater blower resistor since it would only be about $25. I stopped in at Auto Focus and asked for the part, gal showed me a photo and I confirmed that it was the item I wanted but their list was $53.99. She looked over all of the options and found one for $13.99 but not in their store, but one a mile away. Placed it on hold and I drove over and picked it up. As you said it was an easy replacement (after dumping the junk in the jockey box) and took only a few minutes to replace. then the moment of testing the system. Drove off to get a little engine speed with the opportunity of testing the switches and air. Switched the blower on, the A/C light stayed on in high (sweet success) and the cold air was blowing out the vents. Ah, sweet, easy and cost efficient. Thanks heaps my friend.

[@robertheinkel6225]

Any suggestions on a 05. It works fine in all speeds, then the blower motor slows down and quits. Let it cool off, and it will work again for about a minute. I did a voltage check at the motor, and it did change with the speed, until the fan started running slower. The voltage remained 12, no matter what speed was selected.

[@fahlur]

did you ever get this resolved? I have the exact same issue.

[@barney3667]

I had a Ford dealer replace this resistor 3 times in 6 months and was told it may be a heater unit problem which could cost over £400 to replace. However they came up with a solution. Always leave the setting on 4 BEFORE you switch on the ignition, when the car starts turn down the blower level to what you want. It doesn't make a lot of sense however I'm willing to try it for a while to see. I'll like to bet that if the motor is switched off before you start the ignition this would also save the resistor from blowing.

[@righton581]

have a 2009 focus, not easily finding resistor...plus plug that goes to the actual blower motor is blackened on one end and keeps blowing 40a fuse under hood that I assume is blower fuse.

[@miekevandenbosch4301]

Thanks! Ik think this is my solution, but I just tried it en I got a little bit of electric stream on my hands...is that normal?

[@michaelsnyder24]

I just did mine but a/c light still turns off on 2 3 4 setting. Works on 1... what else could be my prob? At least blower is now working on all settings!

[@rickyiso5447]

Hi. Is this the solution also when the fan works on 1 , 2, only? My 3 and 4 speeds are dead. A/C works fine. (I am asking for a Focus MK1, i know the resistor is on the right side, etc.) Thank you

[@CameronScottsChannel]

Ricky Iso Check fuses, if the fuses are fine then I'd say yes, it isn't expensive and pretty easy to do so might as well try it. My ac would work sometimes and then stopped working altogether.

[@MartinHernandez-qs7wz]

Could this possible also cause the radiator fan not to turn on causing overheating problems?

[@CameronScottsChannel]

Most likely the radiator fan is a separate issue unrelated to interior fan systems, take a look at the fuse diagrams associated with the radiator, it could be fuse related or another sensor.

[@ryanhayward5910]

Will this fix the cooling fan that’s on radiator?

[@CameronScottsChannel]

This is only for the interior AC/heat blower.

[@mofoco1971]

sure did it fixed my 2002 zts with over 270k on it. thanks you so much.

[@TruePain123]

Bro, your a life savior, tyvm

[@bazf7742]

thanks very much, any help with the engine fan?

[@CameronScottsChannel]

Baz F most likely a fuse/relay/connector do you have a check engine light?

[@bazf7742]

No engine light, ill check all the fuses, thanks again for the blower fan fix

[@mofoco1971]

relay or like mine it was a resistor and it's pigtail.its on the housing of the fans there are videos on this on KZbin

[@TACOPOTENTE]

I have a similar problem only have switch selector position one not working only 2-4 and I have inspected fuses all other functions work fine including the A/C buttons. Now my thing is what if changing the resistor out doesn’t fix it what else is causing this error?!

[@CameronScottsChannel]

If resister doesn't do it then it might be the fan knob itself, almost everyone with the same problem has found the resistor to be the issue though.

[@TACOPOTENTE]

Cameron Scott Yep! The Resistor and the Switch were available to change out and it turns out for me the resister was fine however I replaced it with new one anyway. It turns out the selection module was broken on the speed one and now I’m back in business!

[@CameronScottsChannel]

@@TACOPOTENTE Glad you figured it out

[@Eli-sh9qh]

I had the same provlem but i dont know how its impacting the ac can ypu tell me

[@bobreams5178]

Great video & info, will replace resistor as per your much appreciated help, thanx!

[@tirperazvan3100]

same car. my problem is week airflow. the blower motor works on all 4 speeds and i can hear it going faster as i turn the switch from 1 to 2 to 3 to 4 . is it possible for the resistor nut to feed enough current to the blower motor causing it to spin at a lower rpm even if it works on all 4 speeds? or it s probably an obstruction, maybe the evaporator matrix filled with dust or leafs....

[@CameronScottsChannel]

change the cabin air filter, easy cheap step to try

[@tirperazvan3100]

i forgot to say it s the same with the recirculation on , and i even tried with the cabin filter removed so the air will flow freely so..nope. anyway thx for your answer.

[@bethbusick5246]

Had two mechanics replace my water pump n pulley on my 2002 Ford Focus SE. It is now leaking anti freeze in which it never has before. It's still over heating. They told me the put disc in backwards. Not for sure what that is. I'm female. Not a mechanic. Wondering what I need to do to get it fixed so I can drive it so it will not continue to overheat

[@CameronScottsChannel]

replace thermostat and housing, your car shouldn't leak after being at the mechanic.

[@bethbusick5246]

K ty

[@phillipforde2453]

Thank you, thank you, thank you. My problem almost exactly. AC and no fan on lowest setting. No AC and fan on all the others.

[@snc9584]

Thanks - you saved me money I didn't have to spend. Now I just need to get some more freon.. sigh.

[@dalanowright7395]

my problem is the actual electrical connector is burned. Do you know the name of that part?

[@CameronScottsChannel]

Dalano Wright the plug or the resistor?

[@dalanowright7395]

the plug.

[@CameronScottsChannel]

Dalano Wright should be able to find a wiring diagram for the ac system online and that should have it labelled

[@Fanis13Sp]

Great video. I changed it but I still hear some noise. Any one with the same issue?

[@geoas9959]

Great video. Fixed my car ! Thanks

[@alderete74]

OUTSTANDING Saved me a bundle.

[@jovyneilleyros1107]

very helpful just fix mine today.. cheers mate keep the good work...

[@Ingyar]

TNX for the video. I think this is the solution to my problem. My history: 1st i lost #3. I thought it might be the fan speed regulator, because when i pushed it in, it had some contact and while holding kept blowing. After couple of moths, on #1 and #2 no blowing but A/C indicator shows ON, #3 is out and #4 just fan, no A/C. I took the resistor out, waiting for new part. I was surprised that the fan STILL works at #4. Can somebody point me out the functioning logic how this resistor regulates the A/C being on or off. TNX.

[@breedsauce101]

HELP!! My blower just went out and I changed the resistor and it still does not work. What else could it be???

[@CameronScottsChannel]

breedsauce101 Fuse?

[@ShaneM321]

+Cameron Scott where is the fuse located can you make a video about the fuse box to please

[@CameronScottsChannel]

Shane mc donagh Ok, in the fuse box inside the car check fuse 58 on the interior fuse box, that is ac and air, i.fixya.net/uploads/images/2a4e68d.jpg

[@averygoodwin5257]

Excellent review!

[@joehyundaitech7961]

thank you for the video and helpful it fixt my issued and saved me the money going to a shop I did it myself after buying the oem part on rockauto

[@alejandroa.sanchezviamonte8845]

Excelente explicación, pensaba enviar el auto a un taller especializado, ahora lo resolveré.

[@adamredei4053]

Hy My a/c still turns off on 2 3 4 setting. Works on 1... what else could be my prob? Sorry for my bad english

[@CameronScottsChannel]

fuse or the system might need to be recharged.

[@lisagiannotti97]

my 2003 ford focus doing the same exact thing

[@ebenreinhardt2446]

Thanks for the help pal! All fixed

[@johnnyboyle4811]

Does this help the main fan?

[@CameronScottsChannel]

This fix deals with the cabin air fan not functioning at certain speeds or only on one speed.

[@dalanowright7395]

What's it called?

[@modestoandkimberlyitehua4804]

Thanks for this video it really help me out a lot

[@cuervoclothing]

I just changed it and the blower will NOT turn off it's on even in 0, what could it be?

[@CameronScottsChannel]

my guess is you have a bad switch, pull the fuse for a temp fix.

[@cuervoclothing]

+Cameron Scott I'll try that thank you very much!

[@coolmojito]

A/C light was only coming on at 1 speed, turning off at 2-3-4. Changed this blue resistor pack, A/C started working on all speeds!

[@mofoco1971]

that's what mine is doing .did the fix last my just did this on my way home.but right before this ac wasn't blowing cold air all the time. i have over 269 k on my focus.i thank you if you replay back

[@cobrapower8763]

is it normal for the resistor to be so very hot

[@CameronScottsChannel]

Resistors do transfer some energy to heat during normal use but lots of heat will cause it to fail.

[@cobrapower8763]

Cameron Scott the resistor for my car i bought from aliexpress, and is getting extremly hot, i cant touch with my finger. Over 6 months have passed since i have placed on my ford focus mk1. I am scared if that much heat will make something to the wires and make a fire on my car, should i replace it or should i leave it. Like i said over 6 months have passed and nothing happened, I am using it almost everyday

[@CameronScottsChannel]

I would go with the reputable part from the link I have in the video description, I don't trust aliexpress as a supplier. goo.gl/YazicN

[@lindamccloskey4497]

yes, I changed mine too...it worked a week. Now it only blows on high speed. Starts to get hot and smell of wire burn. What could it be?

[@1969emex]

Bought a new resistor. fitted new one. it worked on all 4 levels for around minute then stopped working. Fitted back old resistor and now only works on level 4. Do i need a new blower motor?

[@mofoco1971]

was it a ford part or after market ? yes there is a difference.also inspect your pigtail.

[@Pebblerock59]

Really useful. Many thanks.

[@joshuafox7325]

thanks for the great video, the system works perfect!

[@TheRubenjavier]

thanks for your video,i have this problem, your solution its very eassy, sorry to mi english.

[@infantryrecon101st]

Thank you!!

[@robertobovea569]

Thanks a lot! It worked for me!!

[@honkeunglee6417]

Thank you. My problem is solved.

[@gazhodd74]

Fantastic, cheers buddy that fixed my issue :)

[@jonathanortiz1206]

Thanks my ac on my car is working great now

[@chukynene]

Thanks very helpful.

[@friedchicken1]

Yeah I'm trying to fix the resistor itself

[@josephsepe9186]

Replace thermal fuse 250 if can get deg that size .. $2 crimp on cut old one off

[@RYO92]

TNX SO MUCH MAN!!

[@mathuff5]

2018-08-03: 2003 Ford Focus part #3M5Z18591BA. Current prices range from about $10-$26 (w/$4-$10 shipping depending on how fast you want it) on rockauto.com

[@RobiSt75]

AAAAAAAA++++++++ video, KZbin and Cameron Scott