How To Fix AC Won't Turn On Problem (2002-2006 T1N Sprinter Van Air Conditioner) by Mercedes, Dodge

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The 2002, 2003, 2004, 2005, 2006 TN1 Sprinter vans have a common issue with the AC system that causes the Air Conditioner to only operate intermittently at first, and if it not repaired, it will eventually stop working all together. The culprit is the relay solder joints on the AC and Heat control head unit. The solder joints get cracks in them and then the relay no longer operates.
The repair requires completely desoldering the relay connections, and resoldering them. The first time I did it, I didn't remove the old solder. I just added new solder. That lasted for about 2 years, and the same symptoms reared their ugly head. So I took it apart again, used a solder sucker to completely remove the old defective solder, and resolder fresh. That fix has lasted many years so far.
The 2002-2006 TN1 vans were mainly sold as Dodge Sprinter, Freightliner Sprinter, and sometimes as Mercedes Sprinter van.

Пікірлер: 17

@michaelcarman4875 5 ай бұрын

thanks for info and work

@timmchapman5307 9 ай бұрын

Hey there -Do you have video that shows how you removwe the trim to get at that control panel?

@michaelcarman4875 5 ай бұрын

other videos show this

@WATCHOUT1100 8 ай бұрын

Question! 2006 sprinter when you press the heater button on the side of the snowflake a/c button does the blower motor come on. Or does the a/c have to be pushed in also?

@engineerable 5 ай бұрын

If you're talking about the rest heater button under the AC button, yes, it turns the blower on, and you can adjust the speed using dial. You're electric circulation pump must be working, which is a whole other story.

@user-jk4mg2th5h Ай бұрын

Anyone here ever worked on a rear AC unit for an 06 t1n ?

@marekhodur2887 6 күн бұрын

Hi where did you buy that relay?

@engineerable 6 күн бұрын

@@marekhodur2887 I only resoldered the original relay. I didn't replace it.

@marekhodur2887 6 күн бұрын

Ok thank you

@marekhodur2887 6 күн бұрын

By any chance do you know wher I can buy it? Or what is the name of the part?

@mikebrunt4099 10 ай бұрын

This looks like it could fix my van too without buying an expensive new ac cassette I brought a Mercedes sprinter Van 2006 model without the front AC fitted The guy I brought it from had a new compressor, condenser and fans So I paid my mechanic to install it Cost me $2500 to fit it. It worked for 3 weeks and stopped. Just the fan works no cold air, plenty of gas in system I have taken it to 3 places to fix it that has cost me $2500 plus without success . Including changing the thermostat for no reason as it worked. They get it running for a day then it cuts out a day later Can I bypass the thermostat Can I hard wire the compressor and leave my fan on full speed as it’s very weak anyway and needs to be on full speed Is this safe I’m at my wits end and just need cold air or my wife will kill me for buying a dud AC in a hot Ozzy summer ? Please help Thx 🙏🏼 Mike

@engineerable 10 ай бұрын

I don't think hardwiring will work, because the AC system probably needs to cycle to prevent freezing over or too high pressures. Check the solder joints as I have shown, because the cracked solder joints result in intermittent working AC