Thenewguy
05 Sprinter
TLDR; This is for no fan speed (not the single fan speed resistor pack issue), after checking the blower is operable by jumping 12v to it to verify it is an AC ATC issue.
This post will highlight the symptoms, and parts necessary for repair.
After purchasing a new ATC module late last year from Module Repair Pro in Van Nuys, CA because of an AC issue, I wound up with a new module with a warranty for around 150 dollars. Alas, the issue was my AC system and not the ATC. Three weeks ago I went to flick the heater on and noticed no fan controls, not a 'one fan setting' as read in relation to a failing Resistor Pack, but instead absolutely no fan. I decided I'd throw my money at a cheap resistor pack and see if fixed anything, but that didn't resolve the issue.
I decided after ticking that off the list that I'd call Module Repair Pro and bring the ATC in under warranty. I drove around an hour and a half to get there, pulled the module out and went in. Their "tech" pulled it apart, and found that the fan relay had burnt out (I'll list this down below). I was happy to hear that the issue was apparent, and then the owner proceeded to tell me that it would be $100 dollars to replace, and that the warranty was only for issues that were caused at their fault. I don't know what the hell that means. He says he needed to pay his technician to fix it and $100 was the cheapest for labor and the relay. He showed me the relay that was burnt out, and I proceeded to tell him that I was too broke to pay that much, but the truth is... I'm just cheap. He even tried to lower the price to $75, but I was a little too bitter about the entire ordeal, and it should have been covered by the warranty. Anyways, I am unsure how it wouldn't be the fault of the components on the board, I do not have any shorts in the wiring or anything like that. Sounds like a bait and switch to me. Buyer Beware.
Needless to say, I peeled the dumb 'warranty void if removed' sticker off when I got home, and ordered the new relay. Lo and behold, you can get a pack of these relays for like $10 from China, or if you wanted it sooner you can buy it from the one dealer on ebay in the US for 12 bucks for a single one. Since I'm impatient, I resorted to the latter.
When I received it I just used my soldering iron and suction tool (included in a cheap soldering kit from Alibaba from a few years ago) to release the old relay from the board, used a little bit of force and it came out.
Placed the new relay in, soldering a pin to hold it in place and proceeded to get finish the job.
As concerned as I was about my inability to solder on a circuit board, I was more concerned that maybe the part mentioned at the module shop was incorrect, and that I would need to order another relay or something. To my surprise, I reinstalled the unit in my van, and it WORKED!
You can do this easily, and all it cost me was 12 dollars plus the time to remove and install the unit.
Tools Needed:
Soldering Iron
Suction Tool for Solder
Relay v23076-a3001-c132 (Found mine on Ebay)
Patience
I cannot stress the last part enough, the module isn't super delicate, but it is very possible to hulk out and snap some of the little clips that hold the unit together or the clips holding the board down to the housing.
The relay can only fit in one way on the board.
Mind that spring in the fan position selector in the middle too, sit it aside and don't lose it.
Once again, this is only to fix ALL speeds not working after verifying that the blower still functions by jumping it.
Good luck!
One picture of the relay attached during the operation. Pretty simple.
This post will highlight the symptoms, and parts necessary for repair.
After purchasing a new ATC module late last year from Module Repair Pro in Van Nuys, CA because of an AC issue, I wound up with a new module with a warranty for around 150 dollars. Alas, the issue was my AC system and not the ATC. Three weeks ago I went to flick the heater on and noticed no fan controls, not a 'one fan setting' as read in relation to a failing Resistor Pack, but instead absolutely no fan. I decided I'd throw my money at a cheap resistor pack and see if fixed anything, but that didn't resolve the issue.
I decided after ticking that off the list that I'd call Module Repair Pro and bring the ATC in under warranty. I drove around an hour and a half to get there, pulled the module out and went in. Their "tech" pulled it apart, and found that the fan relay had burnt out (I'll list this down below). I was happy to hear that the issue was apparent, and then the owner proceeded to tell me that it would be $100 dollars to replace, and that the warranty was only for issues that were caused at their fault. I don't know what the hell that means. He says he needed to pay his technician to fix it and $100 was the cheapest for labor and the relay. He showed me the relay that was burnt out, and I proceeded to tell him that I was too broke to pay that much, but the truth is... I'm just cheap. He even tried to lower the price to $75, but I was a little too bitter about the entire ordeal, and it should have been covered by the warranty. Anyways, I am unsure how it wouldn't be the fault of the components on the board, I do not have any shorts in the wiring or anything like that. Sounds like a bait and switch to me. Buyer Beware.
Needless to say, I peeled the dumb 'warranty void if removed' sticker off when I got home, and ordered the new relay. Lo and behold, you can get a pack of these relays for like $10 from China, or if you wanted it sooner you can buy it from the one dealer on ebay in the US for 12 bucks for a single one. Since I'm impatient, I resorted to the latter.
When I received it I just used my soldering iron and suction tool (included in a cheap soldering kit from Alibaba from a few years ago) to release the old relay from the board, used a little bit of force and it came out.
Placed the new relay in, soldering a pin to hold it in place and proceeded to get finish the job.
As concerned as I was about my inability to solder on a circuit board, I was more concerned that maybe the part mentioned at the module shop was incorrect, and that I would need to order another relay or something. To my surprise, I reinstalled the unit in my van, and it WORKED!
You can do this easily, and all it cost me was 12 dollars plus the time to remove and install the unit.
Tools Needed:
Soldering Iron
Suction Tool for Solder
Relay v23076-a3001-c132 (Found mine on Ebay)
Patience
I cannot stress the last part enough, the module isn't super delicate, but it is very possible to hulk out and snap some of the little clips that hold the unit together or the clips holding the board down to the housing.
The relay can only fit in one way on the board.
Mind that spring in the fan position selector in the middle too, sit it aside and don't lose it.
Once again, this is only to fix ALL speeds not working after verifying that the blower still functions by jumping it.
Good luck!
One picture of the relay attached during the operation. Pretty simple.
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