Why are we getting LS-20 Low Sump faults?

by MPM
(Kansas)

Working on a Sullair LS-20 and can't seem to resolve an issue.


I keep getting a low sump fault even within a minute or so of start up.

What is likely the culprit?

Comments for Why are we getting LS-20 Low Sump faults?

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Jul 20, 2016
MPV
by: Utallis

Hi there,
It sounds like the minimum pressure valve on top of the separator tank is stuck open. That's the first thing I'd check.
Hope that helps :)

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