HYDROO MDROO Series, Руководство по эксплуатации

Страница: 7 / 9

12 13
Fault Cause Solution
Motor’s failed to start
1. Power supply faults
2. Overload
3. Power cables faults
4. Pump is blocked by impurities
1. Check power supply
2. Check system
3. Check cables
4. Disassemble and get rid of impurities
Insufficient flow
1. Pump runs reversely
2. Too big suction
3. There is air in the suction or in the
pump
4. Pipes clock or there is air bag
5. Neck ring wears out
6. Valve is not open or not open
correctly
7. Low rotation
8. Choose the wrong model
1. Change the motor cables
2. Lower the install position
3. Vent air or re-fill water
4. Service pump
5. Replace neck ring
6. Open valve
7. Check if the power voltage is too low
8. Re-choose the model
Pump consumes
too big power
1. Too big flow
2. Motor bearing wears out
1. Adjust flow
2. Replace bearing or chage motor
There is noise in the pump
and no water out
1. Excessive high resistance in the
suction pipeline
2. Bad sealing of the suction pipe or air
leakage due to insufficient immergence
of the suction end
3. Excessive high liquid temperature
1. Check suction pipeline
2. Eliminate the leakage
3. Reduce the suction height or liquid
temperature
There is big noise with the
pump
1. Motor bearing wear out
2. Pump parts wear out
1. Replace the bearing
2. Replace the parts
Water leakage
1. Wrong installation of the mechanical
seal
2. Mechanical seals wear out or
damaged
1. Reinstall mechanical seal
2. Replace mechanical seal
Motor temperature is too
high or smoke out
1. Overload running
2. Wrong voltage
3. Wrong connection way
4. Not good electric contact
5. Fan is blocked by impurity
1. Adjust the discharge valve
2. Rectify the voltage
3. Make connection again
4. Remove impurity
X. TROUBlE aND TROUBlE SHOOTING
XI. IMPORTaNT NOTICE
1. Customers will not be advised if this manual is updated.
2. Pump will be guaranteed for one year under normal operation with the correct
model. Wearing part is not included.
3. Users shall be responsible for the damage if they dissemble the pumps by
themselves in guaranteed period.