
Container Mixing
Pump CMP 30 4.0
Part 2: Overview –
Operation – Spare Part Lists
Troubleshooting
52
2021-02-10
Malfunction Possible cause
Solution
Performed by
Mixer does
not start
Material
Moist, set material in
the dosing zone
Open and clean dosing zone
Operator
Pressed and set material in
the mixing zone
Clean mixing tube.
Operator
Water not
flowing
(flowmeter
does not
display
anything)
Solenoid valve (bore hole in
membrane blocked)
Clean the solenoid valve
Service technician
Solenoid coil defective
Replace the solenoid coil
Service technician
Pressure reducing valve closed
Open pressure reducing valve
Operator
Water inlet at the mixing
tube blocked
Clean water inlet at
the mixing tube
Operator
Needle valve closed
Open the needle valve
Operator
Cable to solenoid valve defective
Replace the cable to solenoid valve Service technician
Pump motor
will not start
Pump motor defective
Replace pump motor
Service technician
Defective connection cable
Replace the connection cable
Service technician
Plug or mounted socket defective Replace plug or mounted socket
Service technician
Motor protection switch defective
or actuated
Replace or reset motor
protection switch
Service technician
Material in pump container too dry Clean pump container
Operator
Machine
stops after
a short period
Dirt trap screen is dirty
Clean or replace the screen
Operator
Pressure reducer filter dirty
Clean or replace the screen
Operator
Hose connection or water line
too small
Enlarge the hose connection or
water line
Operator
Machine will
not switch off
Air pressure safety switch
misadjusted or defective
Set or replace air pressure
safety switch
Service technician
Compressed air hose or
seals defective
Replace compressed air hose,
replace seals or check
compressor
Service technician
Air tap on spray gun defective
Replace air tap
Service technician
Insufficient compressor output
Check compressor
Service technician
Air supply not connected to
compressor
Connect air supply to compressor Operator