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AppENDIX II - TROUBLESHOOTING
Problem
Possible Cause
Remedy
Pump does not deliver
water or pressure
1. The pump is is not full of water.
1. Stop the pump, fill it with water, check all pipe
connections to make sure there are no air leaks
and try again.
Low pressure
1. The motor is not up to speed.
2. The impeller is partially plugged.
3. Air is leaking into suction line.
1. Check for proper voltage and tight wiring
connections.
2. Check impeller for rocks or debris. Refer to
disassembly instruction for getting to impeller.
3. Check suction line connections.
Low capacity
1. Your water level is deeper than 25 feet.
2. You are using too long a pipe from the water to the pump.
3. You have a plugged impeller.
4. The pipe from the pump to the water is partially plugged.
5. The motor is rotating backwards. (3 phase only)
1. Pump can’t pump below 25 feet. Call your
Franklin Pump Systems dealer.
2. You shoud use a larger diameter pipe.
3. Check impeller. Refer to disassembly
instructions above.
4. Check pipe.
5. Switch 2 leads to reverse rotation (3 phase
only)
Motor overheats
1. Improper voltage or wiring connections.
2. Improper ventilation for the motor.
1. Check to see if your voltage is the same as
indicated on the motor name on dataplate. Be
sure all wiring connections are tight.
2. Check to see if motor is clean and
properly vented.
Motor will not start
1. Open switches, blown fuses or loose connections.
2. Improper connections to motor.
1. Check switches, fuses and connection.
2. Make sure connections are tight.
Air logging (excessive air
in pipe)
1. Air leaks in pipe.
2 Water drops below the end of the pipe.
1. Check connections.
2. Pump is out-producing well. Tighten down
control valve gradually until pump starts
operating properly.
Gravelly noises inside
pump (cavitation)
1. Pump running over capacity (NPSHR exceeds NPSHA)
2. Suction pipe is too small or length of pipe is too long.
3. End of suction pipe is in mud or sand.
1. Call your Franklin Pump Systems dealer.
2. Use a larger diameter pipe.
3. Raise end of suction pipe or clean out well.
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