EBARA ENZX - Manual (Page 7)

Ebara Submersible Slurry Pump ENZX
Operating, Installation and Maintenance
Troubleshooting Guide
If the fault cannot be remedied, please contact Ebara FHD customer service directly by phone: (803) 327-5005 or
e-mail: [email protected].
Ebara Fluid Handling
www.pumpsebara.com 7
(803) 327-5005 • (803) 327-5097 (fax) rev. 03/14
Faults Problem Solution
No liquid lifting
or deficient
1. Reverse rotation of motor 1. Change any two leads of the three phases
2. Pipe or impeller blocked 2. Clear suction area
3. Impeller drop down or damaged 3. Re-secure or change impeller
Uneven running
(Vibration)
1. Pump head too low or pump cavitation 1. Replace pump or reset valve
2. Impeller damaged
2. Replace impeller
3. Bearing damaged 3. Replace bearing
4. Impeller friction 4. Reset impeller gap
Insulation failure
1. Cable damaged 1. Replace cable and dry motor
2. Mechanical seal failure 2. Replace seal and dry motor
3. O ring failure 3. Replace O ring and dry motor
4. Water into cable 4. Replace cable and dry motor
1. The pump is locked 1. Free impeller
2.Medium density and viscosity is
excessive 2. Adjust medium density and viscosity.
3. Bearing damaged 3. Replace bearing
4. Working voltage is too low 4. Reset voltage
Sudden
current
drop
1. Pipe or pump blocked 1. Cleaning pump or pipe
2. Water level is too low 2. Filling medium
3. Impeller damaged 3. Replace impeller
Thermal
protection
(WC) alarm
1. Motor out of water 1. Reset pump installation or install cooling
device
2. Voltage low 2.Reset voltage
3. Bearing damaged 3. Replace bearing
4.Trouble with cooling device 4. Clean cooling device
Leak protection
˄ XLǃJH˅alarm
1. Mechanical seal failure 1. Replace seal and dry motor
2. O ring failure 2. Replace O ring and dry motor
Current
excessive or
motor
temperature
too high