LS 20 woud not start it shows p1 pressure low and Estop

by Adnan
(india)

LS 20 controls

LS 20 controls

We have Sullair ls20 500cfm screw compressor, it shows p1 low and e stop when i try to start it.


Actually it shows the fallowing sequence of codes.
M start(but motor never starts)
P1 low
E stop

Comments for LS 20 woud not start it shows p1 pressure low and Estop

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Aug 22, 2017
No start Estop
by: Doug in s.d.ca.

Easiest is try pushing the emergency stop and then reset it, if you didn't already.

If that doesn't help, and the motor *really* doesn't move, then the delta-wye system is stuck, most likely.

Good luck.

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