Symptom
Cause
Corrective Action
Insufficient
pressure
Incorrect pump type.
Select suitable pump.
The inlet pipeline is too long or with
too many bends, pipe diameter is not
selected as required.
Apply the pipe with the stipulated
diameter, and make the inlet pipe short.
Inlet pipeline, filter screen or pump
chamber is blocked by foreign
materials.
Clean pipeline, foot valve or pump
chamber, clear sundries.
The pump
vibrates.
The pump is not fixed in the base.
Tighten the foundation bolt.
There is sundries in the pipeline or
pump chamber.
Check and clean the pipeline and pump
body.
The base is not enough stable.
Fix the pump on the stable base.
Motor works
intermittently or
the stator winding
is burned out
The motor is in the overload operation
for a long time.
Install the valve in outlet, reduce the
water yield.
The impeller is jammed or overload
operation for a long time.
Clear sundries in the pump chamber;
operate the pump under the rated flow
as much as possible.
Incorrect grounding, broken cable or
the electric pump is hit by lightning.
Seek for the reason, and replace
winding coils.
Leakage of
mechanical
seal
The mechanical seal is worn and tom
by impurities.
Clear or replace the mechanical seal.
Abnormal
noise from the
pump.
Noise from the bearing.
Replace with the same type bearing.
Impeller is jammed.
Remove sundries.
Excessive head.
Adjust to the range displayed on the
nameplate before use.
Pressure switch do
not work or start-
stop too frequently
Pressure is too low inside the tank.
Check the pressure, and adjust it
between 1.4-1.6bar
Pressure is too high inside the tank.
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 : [email protected]
13. GUARANTEE
Refer to the enclosed guarantee conditions for the terms and conditions of guarantee.
2017 – Made in China
