
6
Pump
Troubleshooting
Reduced capacity
1. Strainer or impellers partially
clogged or plugged.
• Pull pump and clean.
The vast majority of service calls
on these systems are caused
by problems that are electrical in
nature.
Never operate the pump for long
periods of time with the discharge
valve closed. This could cause
overheating resulting in damage
to the pump and its motor. A
properly sized relief valve should
be installed before the tank to
prevent the pump from operating
with the discharge valve closed.
Familiarize yourself with potential
problems and troubleshooting
solutions.
Pump won’t run
1. Blown fuse, broken (or loose)
electrical connections.
• Check fuses, capacitor,
relays and all electrical
connections.
2. Motor overload protection
contacts open.
• Contacts will close automatically
within short time.
3. Improper wiring connections.
• Check wiring diagram.
4. Low voltage.
• Check voltage at control box.
Pump runs, but no water pumped
1. Check valve installed backward.
• Reverse and reinstall.
2. Pump impeller plugged or
intake strainer clogged.
• Pull pump and clean.
Motor Model No. ________________________ Pump Model No. __________________
HP____________ Phase____________ Volts__________ Cycles __________________
Amps: L1______________ L2_____________Date of Installation __________________
Well depth________________________ft. Pump depth______________________ ft.
Name of dealer installer from whom pump was bought __________________________
_________________________________ Date of purchase ________________________
For your reference
Fill in the following information and keep this Installation & Operation
Guide among your important papers. Information about your
Hydromatic Submersible Pump will be found on the owner’s
information-plate. Whenever necessary to contact your dealer or
installer, give him this information.
Any or all the above
1. All known causes are checked
but system won’t work properly.
• Call your Hydromatic dealer
or your serviceman.