Mercedes Sprinter Air Conditioner Fix
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- Опубліковано 30 бер 2018
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Bad advice. First thing to check is the front blower fuse. Fuse is in the fuse block near the driver's foot. Left side in USA model. It's #12 on USA models. The blower can draw as much as 25amps. Causing the 30 amp fuse to run hot. Mine melted one of the terminals but the fuse was still good. Top terminal of the fuse was 140F when the fan was on max with new fuse. No voltage at blower motor with the old fuse. Mercedes Benz dealer said I needed a new blower motor and new blower motor resistor. I didn't need either one.I disassembled the blower motor and lubed it. And wired around the fuse block using a fuse link with a 30amp fuse. Saving yourself hundreds of dollars. And future problems. Bad design to run a fuse at over 75% of its rating(25amps on a 30amp fuse is 83% of its rating). The blower motor resistor is a solid state device with no resistors inside. It doesn't check out with a multi meter like regular blower motor resistors. This problem is hard to figure out and can give you headaches.
I do have the same issue with my 2012 sprinter. The fuse no 14 melted then I replaced with a new one then the A/C worked for a few seconds and run out again. I changed the fuse no 14 for 3 times but nothing fixed. I wish if you have time make video step by step how to fix this issue. Thank you for ur time to write this hopeful comment!!!
Is not misleading. He may be trying to solve the problem because is the same blower for AC. He may not be so clear about it but very helpful, I just solve my blower problem with this video.
Good video - especially the link for the part
Gerçekten çok bilgilendirici bir video teşekkürler
Hi Nick, thanks for the heads up, fixed the blower to Aircon in a half an hour, took 4 day delivery for resistor bought on line from Chullora ($32). Thank s to all the guys who do this you tube stuff really does save heaps.
Show me more mate, you know your stuff,straight forwárd
To all those claiming this has nothing to do with air conditioner are kidding themselves. An air conditioner needs to blow the cold air it produces, so ultimately the blower is part of the air conditioning system... Had similar problem, the fans were not blowing the cold air. When at standstill in traffic..nothing... when driving at 100km p/h the cold air was ok. Replacing the blower resistor fixed the problem. Whether there is an underlying issue causing the resistor to blow is another thing, but for $30 bucks, it's a pretty good fix.
question, I replace the blower resistor my on my 2016 and still not working, my blower was working but it wasn't cooling that was and still the problem,
what else I should be looking, any idea?
Thanks.
If your Merc is blowing hot air, whichis fair indication that the blower fuse is working, the first thing to do b4 running up expensive repairs is a visual check on the ambient air temperature on the intrument cluster on the dashboard. If the ambient temperature reading is abnormaly high, then the sensor has gone open circuit. Same deal if it reads abnormally low - from about 3.5 degrees centigrade to below. In either instance it affects the performance of your air conditioner and it will blow hot air. This is an intermittent problem I am having with the ambient temperature sensor on my 2014 Vito van. It reads low instead of high - as soon as it reads as low as 3.5 degrees (it sometimes reads as low as -17 C), I lose the air conditioner. It becomes a pain in the butt on a hot day. But it's an easy fix which I need to get around to b4 next summer.
I'm pretty sure that's just the resistor for the fan speed control. Not anything to do with AC. But someone correct me if I'm wrong..
You are correct: That is merely a dropper "resistor" (but solid state) for the different fan speeds: It needs to be in the air flow for cooling under ALL conditions.
If it is open circuit.... the AC will not come on...because the AC is wired in series with the fan: NO FAN. No AC.
(Try putting your AC on without switching on the fan.....It will not operate.....will it? No matter what the status of your AC system.)
Where to purchase
Great info. I have 5 sprinters and all of them stopped blowing cold air. They are 2005 - 2007. They blow air but it’s hot. From your experience do you think I should try what you did here. I as well as my employees hope to hear back from you soon.
Thanks Joe
MR. Electric
I'm actually experiencing the same issue with mine and its 2016
My 09 was blowing hot air, most of the r134 freon leaked out just had it recharged and works great repair shop says its a common problem on sprinters they need to be recharged every few years...
@@lutomson3496 I've added freon today as well and the red line see instructions on r134 showed up. Compressor doesn't seem to kick on. Ordered a new compressor, resistor, belt, seals, hopefully that fixes the issue
Same 2006 how did you go Mr Joe ?
@@ald_in I am betting it did not. Wasted your money. Much more to Air Con than gas.
What is the name of the unit and part number?
Did you hear that your blower motor squeaking that mean your blower motor brush is bad so pulling extra Current that’s way getting hot and blowing that resistor
Can't find linc
How will you know if its that or not?! I've just had my aircon regassed and now the mechanic is saying I need a new thermostat as its possibly leaking?
Find a proper mechanic. Thermostats do not "leak" They either work or they don't: They are a switch. Not a gas control.
Do you have a link for the part for the USA?
Does the rear rooftop AC also have one of these resistors?
I have the issue of mine is not working on the rooftop did you ever figure out the problem
Hi
My air con on 2017 Sprinter Jayco Motorhome keeps cutting out after 20 mins or so on a journey i switch it off then it comes back on for 5 minutes. Guess its the same fix , its getting hot ??
Great vid any advice would be appreciated
Thanks
Mitch
Mine does the exact same thing. It’s almost as if it’s freezing over then comes good after I turn it off for a while. Have you found a solution for yours yet?
I changed resister as in the video ! Worked perfectly 👍🏻
@@Justin-be5gy mine seems to make loads of noise but nothing comes out the vents after a while, then when it has a break it opens the flaps behind the dash and blows my face off again. Only happens on cold and never heat
@@rob12841 yes that’s exactly what mine does. So frustrating lol
l too own a 2017 sprinter mercedes motorhome and the aircon keeps cutting out every 30 minutes into the drive so i guess i will be ordering a resistor too...
Boy oh boy do you not know the differance between an AC and a heater. Back to school for you, me lad.
Sorry, brother man, you didn't fix the AC you fixed the cabin fan. The HVAC fan. The blower motor. It's only just three and some odd minutes but I can't get that time back.
quite misleading, he is just fixing the blower resistor. it is not an A/C problem
NOTHING TO DO WITH AIR CON. THIS IS BLOWER MOTOR.
Did not work for mine 50$ down the drain
That’s not A/C that’s heat. This vid is misleading
It's actually the blower motor resistor. He's fixing the fan.