32 | EngliSH
The machine does not start
Cause
Remedy
Interruption of the power supply, short circuit/short-circuit to earth in
the conduit and/or motor winding
Specialist to check conduit and motor and replace, if appropriate
Trip fuses, circuit breakers and/or monitoring devices
Connections to be checked by a specialist and changed, if appropriate.
Fit/set up circuit breaker and fuses according to the technical instruc-
tions, reset monitoring devices. Check impeller/propeller for smooth
operation and clean/restore to operability, if appropriate
The machinery starts, the circuit breaker is released, but is off shortly after start-up
Cause
Remedy
The thermal trigger on the circuit breaker is set incorrectly
Specialist to compare the setting of the trigger with the technical
instructions and to correct if appropriate
Impeller/propeller slowed down due to adhesions, obstructions and/or
solids, increased power input
Switch off machinery, secure against restart, restore to operability of
the impeller/propeller/clean suction branch
The medium is too thick
Contact the manufacturer
The machinery runs, but does not convey
Cause
Remedy
There is no pumped medium
Open inlet for container/gate valve
Inlet obstructed
Clean inlet, gate valve, suction piece, suction branch/suction filter
Impeller/propeller blocked/slowed down
Switch off machinery, secure against restart, restore operability of
impeller/propeller
Defective tube/pipe
Replace defective parts
Pump adhere on flexible ground
Move the pump on hard ground
The machinery is running, the indicated operating values are not met
Cause
Remedy
Inlet obstructed
Clean inlet, gate valve, suction piece, suction branch/suction filter
Gate valve in the pressure pipe closed
Open gate valve completely
Impeller/propeller blocked/slowed down
Switch off machinery, secure against restart, restore operability of
impeller/propeller
Air in the system
Check pipes, pressure mantle and/or part of pump, de-aerate, if
appropriate
The machinery conveys against too high pressure
Check the gate valve in the pressure pipe, open completely if appro-
priate
Wear and tear
Replace worn parts
Defective tube/pipe
Replace defective parts
Inadmissible content of gas in the pumped medium
Contact the manufacturer
Dual phase operation
Specialist to check connection and to correct, if appropriate
Too strong drawdown in operation mode
Check supply and capacity of the system, check settings and function
of the level control
The machinery does not run smoothly and makes noises
Cause
Remedy
The machinery runs in inadmissible operating range
Check the operating data of the machinery and correct, if appropriate
and/or adjust the operating conditions
Pump inlet, intake strainer and/or wheel/propeller congested
Clean suction branch, suction filter and/or impeller/propeller
Impeller does not run smoothly
Switch off machinery, protect against restart, restore operability of the
impeller
Dual phase operation
Specialist to check connection and to correct, if appropriate
Wear and tear
Replace worn parts
Engine mount defective
Contact the manufacturer
Machine mounted askew
Check assembly and use rubber compensators
Further steps for troubleshooting
If the aforementioned points do not help you to eliminate
the fault, contact our customer service. They can help you
as follows:
•
Assistance by telephone or in writing by the custom-
er service
•
Support on site by the customer service
•
Check/repair of the machinery in the factory
Please note that the use of certain services of our custom-
er service might incur further costs! Please contact our
customer service for further information.
Summary of Contents for C250WA
Page 33: ...English 33 Notizen Notes ...
Page 65: ...Nedlerlands 65 Notizen Notes ...
Page 70: ...70 Notizen Notes ...
Page 71: ...71 Notizen Notes ...
