23833A308
7
TROUBLESHOOTING CHECKLIST (CAUTION: SHUT OFF POWER TO PUMP)
PROBLEM POSSIBLE CAUSES
Pump will not prime. • Not enough water. Stop motor, remove 1-1/2" pipe plug, and fi ll 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 capability.
• Leaks. Check all connections for airtightness.
• Leaky shaft seal.
Pump does not deliver rated
capacity.
• Insuffi cient 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 valve, or well point.
• Discharge system head is too great.
• Well depth exceeds pump capability.
• Pump fl ow is greater than well fl ow capability.
• Leaks. Check all connections for airtightness.
• Suction pipe is too small. Should be 1-1/2" pipe.
Pump loses prime after starting. • Insuffi cient submergence of suction pipe; should be at least 3 feet below water level.
• Well depth exceeds pump capability.
• Pump fl ow is greater than well fl ow capability.
• Leaks. Check all connections for airtightness.
Pump vibrates or is noisy. • Insuffi cient 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 2.
• 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.
PUMP DISASSEMBLY
REPAIR KITS
DIFFUSER & IMPELLER
Kit RPK-7LS for the R7L
Kit RPK-10LS for the R10L
Kit RPK-15LS for the R15L
Kit RPK-20LS for the R20L
Kit RPK-25LS for the R25L
KIT RPK-LSS
Includes shaft seal, impeller seal,
slinger, gasket 8-3/4 O.D.,
gasket 2-1/8 O.D. which fi t all
5 lawn sprinkler pumps
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