A/C pressure to high blockage
Thread Starter
Newbie
Joined: Oct 2016
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2014 C350 coupe
A/C pressure to high blockage
I have a GL450
The high and lowside of the A/C is approx 100PSI.
I must have a blockage somewhere. I evacuated the system and pulled a -20PSI vacuum then added maybe 8oz 134A and pressure went right back to 100ISH PSI.
How do I find where the blockage is???
Thank you
The high and lowside of the A/C is approx 100PSI.
I must have a blockage somewhere. I evacuated the system and pulled a -20PSI vacuum then added maybe 8oz 134A and pressure went right back to 100ISH PSI.
How do I find where the blockage is???
Thank you
Thread Starter
Newbie
Joined: Oct 2016
Posts: 8
Likes: 0
2014 C350 coupe
When there is no 134A in it the pressures are 0.
When I put 134A in it it quickly hits 100 on the low side and high both and then the high pressure switch on the low side shuts down the compresor.
It would generate WAY more pressure it the sensor wasnt shutting it down.
There is a blockage somewhere on the low side. That can be the only explanation.
When I put 134A in it it quickly hits 100 on the low side and high both and then the high pressure switch on the low side shuts down the compresor.
It would generate WAY more pressure it the sensor wasnt shutting it down.
There is a blockage somewhere on the low side. That can be the only explanation.
MBWorld Fanatic!
Joined: May 2015
Posts: 4,037
Likes: 1,012
From: Miami, FL
2003 CL 600
No, if you just put freon in the pressure is around 100psi normally. There isn't a high pressure shutoff on the low pressure side.
If it's 100 on both sides, your compressor isn't working.
If it's 100 on both sides, your compressor isn't working.
