USER MANUAL
Carefully follow the instruction below to obtain the best performance and a long
service life.Contact your local agent if you have any problem.
PH - PM
SERIES PERIPHERICAL ELECTRIC PUMPS
INOX 100 - JET 100
SERIES SELF-PRIMING ELECTRIC PUMPS
P Y D
ELECTROBOMBAS
TROUBLES AND COUNTERMEASURES
Troubles
Causes
Counter-Measures
(the indication can be done by user.)
Motor does
not start.
• Thermal protector acting.
• If the motor is overheated, it doesn’t operate.
Then, wait till getting cold(20~30minutes).
• Thermal protector damaged.
• Replace a new one.
• Faulty cord connection.
• Insert the plug securely.
• Connect the cord again.
• Faulty cord connection.
• Replace the new cord.
• Trouble in motor.
• Replace the motor.
• Impeller stuck.
• Clean the impeller.
• Too low power supply voltage.
• Consult with the power supply company.
Motor runs
without
pumping water
• Water level of well is lower than stan-
dard level or suction lift too high.
• Check the water level of well
• Move the pump closer to water intake level.
• Trouble in non-return valve.
• Take off the non-return valve cover, then clean
the valve, the valve seat and the valve hole.
• Filter apparatus or foot valve blocked.
• Clean both of them.
• Air drawn into suction pipe.
• After checking the joints of piping, tighten them
perfectly.
• Make sure the foot valve is immersed by at least
50 cm.
• Air drawn into pump from mechanical
seal.
• Replace the new mechanical seal.
Thermal
protector for
motor works
too often.
• Too low or high power supply voltage.
• Consult whit the power supply company.
• Impeller is in contact with another part.
Impeller blocked.
• Check and repair the defects.
• Clean the impeller.
• Short or open circuit of the capacitor.
• Repair the capacitor.
Water does
not come out
from pump at
the first few
minutes after
switch on
• Air drawn into suction pipe.
• Repair the defects of piping.(To prevent air
leaking).
Pump starts
though no
water is being
used.
• Water leaks at piping or pump
• Repair piping, pump parts and faucets etc.
• Water leaks at mechanical seal.
• Replace the mechanical seal.
Flow rate
insufficient
• Suction lift reached the limit.
• Check the suction lift.
• Filter apparatus or foot valve blocked
partially dogged.
• Check valve or filter apparatus and check the
whole suction piping if necessary.
• Impeller blocked.
• Disassemble pump and carefully clean pump
body and impeller.
