Operating instruction
MWV250.230 / MWV250.1150
Page
4
Searching for trouble
Searching for trouble
defect
possible causes
remedy
Pump does not start
plug is not connected
Power line is damaged
Feed cable without electricity (fuse
damaged)
Connect the plug
Replace line cord
Clear faults in the feed cable
Pump shuts down after a long term
Pump gets too hot
Suction filter / silencer is blocked
Piston jams
Check intake and outtake air of the
engine
Replace components (both)
Refurbish the pump
Air power too low
Suction filter contaminated
Suction hose is broken
Close bushing/ piston liner
Replace suction filter (both filter)
Renew the hose
Refurbish the pump
Engine does not work anymore, makes
noise
Engine damaged
Renew the pumping set completely