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WARNING
To prevent serious accidents, disconnect the power supply before inspecting
the pump. Failure to observe this precaution may lead to a serious accident.
Read this Operation Manual carefully before requesting repair. After re-inspecting the
pump, if it does not operate normally, contact the dealer where this equipment was
purchased, or the Tsurumi sales office in your area.
Disposal of Product
Properly dispose of the product by disassembling it, presorting the contents, and sending
them to the waste material treatment site.
The information listed below is needed for repair or for contacting Tsurumi.
9 TROUBLESHOOTING
(1)Contact the electric power company or
an electrical repair shop.
(2)Examine the cause and perform a
professional repair.
(3)Inspect the pump and remove the
debris.
(1)No power is supplied (i.e. power
outage).
(2)Automatic controller (control
panel) malfunction
(3)Protector has tripped due to
jammed debris.
(1)After the operation is restored, change it
to an operation of approximately once
every 30 minutes.
(2)Remove debris by referring to the
section on How to Clean.
(1)Protector has tripped after long
hours of exposure operation.
(2)Float case is clogged with debris,
preventing it from operating.
(1)Secure the pipe support.
(2)Replace the bearing.
(3)Adjust the valve to an appropriate
opening.
(1)Pipe support is loose.
(2)Motor bearing is damaged.
(3)Valve is too restricted.
(1)Repair or replace the affected parts.
(2)Change the operation plan.
(3)Check the nameplate and replace the
pump or the impeller.
(1)Impeller or the pump casing is
excessively worn.
(2)There is an excessive amount of
piping loss.
(3)A 60 Hz model is operated at 50
Hz.
(1)Stop the pump and restart, or clean the
air valve.
(2)Remove the clogged debris.
(3)Remove the clogged debris, or repair or
replace the valve.
(1)Pump is airlocked.
(2)Pump or pipe is clogged inside.
(3)Pipe is partially clogged or the
valve is not operating properly.
(1)Replace the equipment with one with
appropriate specifications or set it to
correct values.
(2)Repair or replace the pump.
(3)Check the nameplate and replace the
pump or the impeller.
(1)Equipment is not matched to the
specifications of the pump or the
equipment is set to improper
values.
(2)Motor is malfunctioning (seized or
waterlogged).
(3)A 50 Hz model is operated at 60
Hz.
Pump fails to start,
or starts but stops
immediately
Pump stops after a
predetermined length
of time
Protector has tripped
Pump runs but does
not pump water
Low pumping volume
Pump generates noise
or vibration
Problem
Possible cause
Countermeasure
Remarks
Purchase date
Manufacturing number
Product model
