View Single Post
Old 08-26-2007, 02:25 PM
brewtoo brewtoo is offline
Registered User
Join Date: Dec 2000
Location: AL
Posts: 1,219
My schematics show S31 to be a simple switch that opens below two bar and closes above three bar. It prevents the compressor from running with a low charge. I still don't see a high pressure switch, but there is usually a relief valve.

The test in the factory manual for S31 does not provide for anything but a low-pressure test.
2012 E350
2006 Callaway SC560
Reply With Quote