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DIRECT CONNECTION Y
2
GY
W2
BE
PE
BK
U1
L1
GY
BK
PE
W2
BE
YW
U1
L1
11. STARTUP AND MAINTENANCE
Do not operate the pump unless the pump chamber is
fully filled with clean water.
Dry operation of the pump will cause damage to the
mechanical seal.
Do not touch the electric pump unless the power of
pump is cut off for over 5 minutes.
Do not remove the pump bonnet unless the water in
pump chamber is completely drained.
Rotate the fan with a screwdriver to check if the pump rotates
flexibly before startup. Remove the filling plug and prime the
pump chamber fully with clean water, then tighten the filling
plug.
2
12.TROUBLESHOOTING
PE
PK
GY
W2
PROBLEM
LB
U1
YW
The pump
L1
does not
start
GY
WE
Insufficient
BK
PE
W2
liquids
pumped
LB
YW
U1
L1
Stator
winding
burnout
220~240V
WE
PK
BK
- black
CE
- coffee
U2
V2
WE
- white
YW
RD
RD
- red
CE
YW
- yellow
V1
W1
GY
- grey
PE
- purple
L2
L3
PK
- pink
BE
- blue
440~480V
BK
- black
CE
- coffee
WE
PK
WE
- white
CE
U2
V2
RD
- red
YW
- yellow
GY
- grey
RD
V1
W1
PE
- purple
PK
- pink
BE
- blue
L2
L3
220~240V
BK
- black
CE
BK
CE
- coffee
WE
WE
- white
U2
V2
RD
POSSIBLE CAUSE
- red
YW
- yellow
RD
V1
W1
Low voltage
GY
- grey
PE
- purple
Impeller blocked
PK
- pink
L2
L3
BE
- light blue
Cable broke or one phase disconnected
Stator winding burnout
440~480V
Excessive head
BK
- black
PK
CE
- coffee
Foot valve clogged or filter screen blocked
CE
WE
U2
V2
- white
RD
- red
Suction pipe leakage
YW
- yellow
RD
V1
W1
GY
- grey
Mechanical seal damage
PE
- purple
PK
- pink
Wrong grounded circuit or phase failure of power
L2
L3
BE
- light blue
Seal box broken and the coil burns out
Long time of dry operation
Impeller blocked or long-time running
Cable broke and winding exposed to moisture
3000 W. 16 Ave. Miami, FL 33012
Tel: (954) 4749090 | Fax: (954) 8890413
info@pearlwatersystems.com | www.pearlwatersystems.com
CONNECTION
2
BK
PE
PK
GY
W2
U2
LB
YW
U1
V1
L1
L2
GY
WE
BK
PE
W2
U2
LB
YW
U1
V1
L2
L1
Keep the valve narrow opened during startup. When the pump
runs normally, adjust the valve to the required flow.
When not using the pump and the ambient temperature is
below 4, empty the pump completely for frost and freeze
protection. The priming procedure must be repeated to restart
the pump.
Attention! If the appliance or the supply cord is
damaged, it must be repaired by manufacturer, its
service agent or qualified person.
SOLUTION
Regulate voltage variation between +/-10%
Clean the impeller by removing it
Check out outlet box and replace the cable
Replace the stator winding
Choose appropriate standard pump according to the scope
of application
Clean up the float grass
Tighten the adaptor of suction pipe evenly
Replace mechanical seal
Fix the problems by removing the winding, re-embedding,
the winding, re-embedding, drying it by heat.
220~240V
BK
- black
CE
CE
- coffee
WE
WE
- white
V2
RD
- red
YW
- yellow
RD
W1
GY
- grey
PE
- purple
PK
- pink
L3
- light blue
BE
440~480V
BK
- black
PK
CE
- coffee
CE
WE
- white
V2
RD
- red
YW
- yellow
RD
W1
GY
- grey
PE
- purple
PK
- pink
L3
BE
- light blue
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