Mixing pump RITMO L / RITMO M Overview - Operation
Work on troubleshooting
2016-02-17
49
41.6 Table of faults
Fault Possible cause Solution Rectification by
Machine does
not start
Current
Power supply not in order Repair power supply Service engineer
Main switch not activated Activate main switch Operator
RCCB was triggered Reset RCCB Service engineer
Motor protection switch triggered
Turn motor protection switch in
control cabinet to position 1
Service engineer
Contactor defective Change contactor Service engineer
Fuse defective Change fuse Service engineer
Machine does
not start with
Air
Insufficient drop in pressure in the
remote control due to blocked air
duct or air nozzle pipe
Clean blocked air duct or air nozzle
pipe
Operator
Air safety switch set wrongly Set air safety switch Service engineer
Air compressor not switched on Switch on air compressor Operator
Machine does
not start
Material
Too much thickened material in
hopper or mixing section
Empty half of the hopper and start
again
Operator
Excessively dry material in pump
part
Run the machine in backward mode,
otherwise remove pump and clean it
Service engineer
Water does
not run (flow
meter does
not show
anything)
Solenoid valve (hole in membrane
blocked)
Clean solenoid valve Service engineer
Solenoid coil defective Change solenoid coil Service engineer
Pressure reducing valve closed Open pressure reducing valve Operator
Water inlet at pump tube blocked Clean water inlet at pump tube Operator
Needle valve closed Open needle valve Operator
Cable to solenoid valve defective Replace cable to solenoid valve Service engineer
Pump motor
does not start
Pump motor defective Exchange pump motor Service engineer
Connection cable defective Change connection cable Service engineer
Plug or inbuilt socket defective Change plug or inbuilt socket Service engineer
Motor protection switch defective
or triggered
Change motor protection switch or
reset
Service engineer
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