750h will not start and reading high pressure

by Richard B
(Lebanon)

Hi, i have a sullair 750h , i open ignition, it lights a compressor shutdown and service pressure reads 231 psi.


Tryed to shunt or override the p2 pressure sender, nothing happened.

Tryed to override other pressure senders, nothing.

Any help?

Comments for 750h will not start and reading high pressure

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Jun 14, 2017
750h will not start
by: Doug in s.d.ca.

Clearly, 231 is bogus.

Broken or shorted wire in harness, I'd guess.

Check for continuity sensor to controller.

Good luck.

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