Thread: W211 AC Wiring
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Old 06-23-2015, 09:45 PM
sredwine sredwine is offline
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Quote:
Originally Posted by JimFreeh View Post
The electrical line to the compressor is connected next to the one of the pressure lines at the top of the compressor. I *think* it's not a simple 12V on or off, it may be a pulsed DC signal to vary the swash plate. As you noted, the compressor is engaged all the time, no traditional clutch.

I borrowed an SDS computer which gives all the A/C parameters, it was essential to do the diagnostics on the system.

Refill is 2lbs, 2 oz. I was also seeing some high pressure in the system, more than I was accustomed to, might have been due to the 95 degrees and high humidity...
Static was around 120 on the low side, 140 on the high side at rest.


Jim

Jim
Thanks for the prompt and meaningful reply, Jim. Was your compressor coming on? what was your fix?
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