A05G069A
16
7.
COMMON
ABNORMAL SITUATIONS AND SOLUTIONS
：
ITEM
SITUATIONS
POSSIBLE CAUSES
SOLUTIONS
1.
Pump stop or
pump can`t
start
No power or incorrect power
Supply power or correct
power source
Magnetic switch damaged
Replace a new one
Fuse/current protector action
Reset or change fuse
Coil temp. protector action
Wait and check possible cause
C.P.U crashed or main board
failed
Unplug to reset C.P.U. or
return to maker to repair
2.
High temp.
(Case top
temp>65
℃
)
High viscosity of fluid
Reduce the fluid viscosity
High pressure output
Check reason and correct it
Output line block or valve closed Clear block or open valve
Incorrect power source
Change to a correct one
Continuously pumping over 4
hours.
If temp. protector does not
action,. This is normal.
Environment high temp. or low
ventilation
Lower temp. and improve
ventilation
3.
No
transportation
No power supply
Turn on power
Inlet pipe or filter blocked
Clear pipe and/or filter
Diaphragm failure
Replace with a new one
Coil temp. protector action
Wait for protector to auto
reset and check cause.
C.P.U crashed or main board
failed
Unplug to reset C.P.U. or
return to maker to repair
4.
Flow rate
become
unstable or
lower than
original
Check ball valve blocked
Clean ball valve components
Gas collects in pump head
Purge through purge valve
Fluid viscosity increase
Check cause and reduce
Input/output pipe leaks
Check and repair
Input pipe or filter blocked
Clean pipe and filter
5.
Abnormal noise
or vibration
Output pressure too high
Check and reduce pressure
Mechanical abnormal
Return to maker to repair
6.
Leaking
Leaking joint/cap is loose
Tighten loose joint/cap
Washer/O-ring failure
Replace with new one
Washer/O-ring is not installed or
not installed correctly
Install one or correct the fail
installation
Screws of pump head are loose
Turn to tighten
Diaphragm is broken
Replace with a new one
