General Safety; Troubleshooting Checklist - Master Plumber 123333 Manual Del Usuario

General Safety

Troubleshooting

TROUBLESHOOTING CHECKLIST

PROBLEM
Pump will not prime.
Pump delivers water for a period
of time, then stops pumping.
Pump does not deliver rated
capacity.
Motor overheats and shuts off
(overload).
Pump delivers water but will not
shut off.
Pressure switch turns on and
off every few seconds.
Motor fails or does not operate
properly.
For parts or assistance, call Master Plumber Customer Service at 1-800-628-9439
For parts or assistance, call Diamond Customer Service at 1-800-265-7241
(CAUTION: SHUT OFF POWER TO PUMP)
• Not enough water. Stop motor, remove pressure gauge bushing, and fill case and suction
line with water.
• Pump wired incorrectly.
• Plugged venturi tube or nozzle.
• Foot valve is sitting in sand or mud, or is stuck shut, or leaks.
• Low well water level.
• Air leaks. Check all connections for airtightness.
• Low well water level. Use a water-level tester while pump is operating.
• Plugged venturi tube, nozzle, or impeller parts.
• Plugged venturi or nozzle.
• Faulty pressure gauge resulting in false readings.
• Low well water level. Use a water-level tester while pump is operating.
• Motor voltage does not match power supply voltage. See pages 2 and 3.
• Improper wire size. See Wire Size Guide on page 3.
• Impeller is rubbing against pump case.
• Impeller neck is worn.
• Defective pressure switch.
• Tank precharge pressure too high. Tank precharge pressure must be 1–2 pounds less than
switch turn-on setting.
• Storage tank is waterlogged.
• Leaky foot valve.
• Too much tank pressure.
• If within Warranty, return pump/motor unit to place of purchase (with proof of purchase)
for exchange.
POSSIBLE CAUSES
7 7