Symptom
Insufficient
pressure
The pump
vibrates.
Motor works
intermittently or
the stator winding
is burned out
Leakage of
mechanical
seal
Abnormal
noise from the
pump.
Pressure switch do
not work or start-
stop too frequently
12. SERVICE DEPARTMENT
_ Damaged switches must be replaced by our after-sales service department.
_ If replacing the power cord is necessary, it should be done by the manufacturer or his agent
to avoid a hazard.
After-sales Service and Application Service
Our after-sales service responds to your questions concerning maintenance and repair of your product
as well as spare parts. Exploded views and information on spare parts can also be found
under:www.eco-repa.com
MASTER PUMPS application service team will gladly answer questions concerning our products and
their accessories : sav@eco-repa.com
13. GUARANTEE
Refer to the enclosed guarantee conditions for the terms and conditions of guarantee.
Cause
Incorrect pump type.
The inlet pipeline is too long or with
too many bends, pipe diameter is not
selected as required.
Inlet pipeline, filter screen or pump
chamber is blocked by foreign
materials.
The pump is not fixed in the base.
There is sundries in the pipeline or
pump chamber.
The base is not enough stable.
The motor is in the overload operation
for a long time.
The impeller is jammed or overload
operation for a long time.
Incorrect grounding, broken cable or
the electric pump is hit by lightning.
The mechanical seal is worn and tom
by impurities.
Noise from the bearing.
Impeller is jammed.
Excessive head.
Pressure is too low inside the tank.
Pressure is too high inside the tank.
2017 – Made in China
Corrective Action
Select suitable pump.
Apply the pipe with the stipulated
diameter, and make the inlet pipe short.
Clean pipeline, foot valve or pump
chamber, clear sundries.
Tighten the foundation bolt.
Check and clean the pipeline and pump
body.
Fix the pump on the stable base.
Install the valve in outlet, reduce the
water yield.
Clear sundries in the pump chamber;
operate the pump under the rated flow
as much as possible.
Seek for the reason, and replace
winding coils.
Clear or replace the mechanical seal.
Replace with the same type bearing.
Remove sundries.
Adjust to the range displayed on the
nameplate before use.
Check the pressure, and adjust it
between 1.4-1.6bar