A/C

Tiny
KENS QUESTIONS
  • MEMBER
  • 1994 MERCEDES BENZ S420
  • 197,800 MILES
Have had the car serviced with freon, fixed a leak and now the compressor has no power nor do the cooling fans. How do I trace this out? I found no fuse blown but suspect that one may be hidden somehow. Please help!
Wednesday, May 15th, 2013 AT 1:05 PM

6 Replies

Tiny
ASEMASTER6371
  • MECHANIC
  • 52,797 POSTS
Re check all fuses with a test light.

Did the system work prior to the repair?

There are a series of switches that protect the system from working with no freon. What are the pressures at rest?

Roy
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Wednesday, May 15th, 2013 AT 3:56 PM
Tiny
KENS QUESTIONS
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It appears all fuses are good.
The a/c was never used before since all use was winter time. I got the car used and did not know the seller.
The mechanic friend that serviced the a/c put in four cans and we were about 2 ozs short of full.
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Wednesday, May 15th, 2013 AT 4:07 PM
Tiny
ASEMASTER6371
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Appears? Once again, needs to be checked with a test light.

Was the ac on when he installed the freon?

Roy
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Wednesday, May 15th, 2013 AT 4:11 PM
Tiny
KENS QUESTIONS
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The fuses weere tested with a test light with ignigtion on.
The system was working inside the car but apparently the compressor never did come on.
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Wednesday, May 15th, 2013 AT 4:17 PM
Tiny
KENS QUESTIONS
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  • 4 POSTS
Also the fuses have no detail list on which belongs to what system nor does the one in the trunk. But all were checked with everything turned on and I will go do that again while waiting for the response.
Thanks
Ken
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Wednesday, May 15th, 2013 AT 4:20 PM
Tiny
ASEMASTER6371
  • MECHANIC
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Use your test light and test for power to the compressor with the ac activated

roy
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Wednesday, May 15th, 2013 AT 4:24 PM

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