PROBLEM
POSSIBLE CAUSES
Pump will not prime.
• Not enough water. Stop motor, remove 1-1/2" pipe plug, and fill case with water.
• Pump wired incorrectly. Voltage of pump should match voltage of power supply.
• Plugged impeller, check valve, suction piping, foot valve, or well point.
• Foot valve is sitting in sand or mud, or is stuck shut, or leaks.
• Well depth exceeds pump capacity.
• Leaks. Check all connections for airtightness.
• Leaky shaft seal.
Pump does not deliver rated
capacity.
• Insufficient submergence of suction pipe; should be at least 3 feet below water level.
• Pump wired incorrectly. Voltage of pump should match voltage of power supply.
• Plugged impeller, check valve, suction piping, foot vavle, or well point.
• Discharge system head is too great.
• Well depth exceeds pump capacity.
• Pump flow in greater than well flow capability.
• Leaks. Check all connections for airtightness.
• Suction pipe is too small. Should be 1-1/2" pipe.
Pump loses prime after starting
• Insufficient submergence of suction pipe; should be at least 3 feet below water level.
• Well depth exceeds pump capability.
• Pump flow in greater than well flow capability.
• Leaks. Check all connections for airtightness.
Pumps vibrates or is noisy
• Insufficient pump foundation.
• Well depth exceeds pump capability.
• Bent shaft, worn motor bearing, or clogged impeller.
Motor overheats and shuts off
(overload).
• Motor voltage does not match power supply voltage.
• Improper wire size. See Wire Size Guide on page 3.
• Impeller is rubbing against pump case.
Motor fails or does not operate
properly.
• If within Warranty, return pump/motor unit to place of purchase (with proof of purchase)
for exchange.
Troubleshooting
7
TROUBLESHOOTING CHECKLIST
(CAUTION: SHUT OFF POWER TO PUMP)
Содержание 4039145
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