Homa CR253WA, Original Instruction Manual

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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