L&W SC-180 ES Operating Instructions Manual page 37

R E M E D Y I N G F A U L T S
Automatic condensate drain defective
Cause of fault
Solenoid coils defective
Cable / supply cable defective
Timer / relais defective
Sinter filter of pneumatic condensate valve
blocked
Piston of pneumatic condensate valve sticks
Condensate drain starts before reaching final pressure
Cause of fault
Pressure stages are not as prescribed, control
pressure of pneumatic condensate valve too low
Piston sealing of pneumatic condensate valve
contaminated / used up
Timer / relais settings not correct
Timer / relais defective
Compressor stops before final pressure
Cause of fault
Final pressure switch settings not correct
Opening pressure of the pressure maintaining
valve too high
Fuse / circuit breaker has tripped
Valid only for E models
Emergency stop switch has tripped
LW SC-180 ES / LW SC-250 ES
Version: 09.12.2022
Remedy
Replace
Repair, replace if necessary
Replace
Replace
Clean pneumatic condensate valve and restore
function, check/replace o-rings, replace valve
complete if necessary
Remedy
Check corresponding inlet and outlet valve,
replace if necessary.
Clean, replace if necessary
Adjust as prescribed
Replace
Remedy
Correct settings
Correct settings
Check fusing of the power supply / observe
regulations
Unlock emergency stop switch, close compressor
housing door correctly
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