1.When the environment temperature is
lower than 4
℃
, you should empty the water
in the pump body for fear of freezing and
breaking the pump body. Before starting the
electric pump again, you must first check
whether the pump shaft rotates flexibly and
fill water into the pump body.
2.If the electric pump is not in use for a long
time, you shall disassemble the pipelines,
empty the water in the pump, clean the
main parts and components, conduct rust-
proof treatment, place it in a dry and
ventilated location and keep it properly.
NOTICE
End Plug
M Pa
Air tight test: After disassembly or replacement of
various sealing units, the pressure-bearing parts
and complete machine shall be conducted a water
(air) pressure test under the maximum working
pressure for 3 minutes and no leakage or sweating
phenomena shall occur.
NOTICE
Every three months you use the water pump, you
need to check whether the pressure tank is filled
with air; if there is no air inside, you need to refill
air into the pressure tank as per the pressure
marked on the tag of the pressure tank.
Recycling of the electric pump shall observe the
local laws and regulations with regard to recycling
and reusing.
NOTICE
IX. Troubleshooting
Fault
Cause
Remedy
Difficulty in
starting
1. Low voltage;
2. Default phase of
the electric pump or
breakage of the
cable;
3. Stuck impeller ;
4. Too much voltage
reduction of the
cable;
5. Capacitor damage;
6. Burned-out stator
winding.
1. Ask the electric power company to solve or add the
voltage; regulator and adjust the voltage to 0.9 – 1.1 times of
the rated value
2. Check the switch wiring terminal and the cable;
3. Use the screwdriver to toggle the rotation shaft at the fan
end to make it rotate flexibly or disassemble the pump body
to clear the debris;
4. Thicken the cable properly;
5. Send it to the maintenance center to replace the capacitor
with one with the same capacitance;
6. Send it to the maintenance center to replace the winding
coil.
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