Drummond 63407 - Troubleshooting

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Troubleshooting
Problem Cause Solution
The pump won’t start 1. No power.
2. Pressure switch disconnected.
3. Thermal Protection cut out.
4. Blocked impeller.
1. Check connections, and breaker/fuse.
2. Check gauge.
3. Allow pump to cool.
4. Free the impeller.
The pump operates
but it won’t
discharge water
1. Pump not primed.
2. Lift height exceeded.
3. Inlet tube not submerged.
4. Air in suction pipe.
5. Inlet screen clogged.
1. Prime pump.
2. Reduce lift height.
3. Submerge the inlet.
4. Check pipe and seals.
5. Clean screen.
Only a low volume
of water flows
1. Inlet pipe is too small.
2. Liquid is too dirty.
3. Lifting height exceeded.
4. Tank’s rubber bladder under-inflated.
5. Piping corroded, causing friction.
1. Increase pipe diameter.
2. Clean screen frequently.
3. Reduce lifting height.
4. Inflate to 23 PSI.
5. Replace piping, with plastic
where possible.
Motor overheats often Pump cycling too often. Cut-in and cut-out pressure may be set
too close together. Have the pressure
switch adjusted by a qualified technician.
Pump/motor
cycles rapidly
Cut-in and cut-out pressure
may be set too closely.
Have the pressure switch adjusted
by a qualified technician.
Tank bladder will
not hold pressure
1. Air inlet valve is leaking.
2. Bladder is broken.
1. Check air tank for leaks using soapy
water and replace bladder if needed.
2. Replace bladder.
Water pumps
intermittently
Water level is being drawn below foot valve. Lower foot valve.
Pump will not
hold prime
1. Foot/check valve not installed
in suction line.
2. Foot/check valve leaks water back to well.
1. Install foot and check valve in suction line.
2. Replace foot/check valve.
Water is full of
bubbles at outlet
1. Pumping bubbles temporarily as
air is purged after initial setup.
2. Leak in suction side of pump system.
3. Well is gaseous.
4. Water level below suction
inlet of foot valve.
1. Temporary self-remedying issue.
2. Check for and fix leaks.
3. Install a sleeve in the well.
4. Lower suction line into water
and re-prime. If water is deeper
than Maximum Suction Lift, then a
deep well pump may be needed.
Follow all safety precautions whenever diagnosing or servicing the pump.
Disconnect power supply before service.
Do not disassemble the pump or motor as this will damage the water seals.
All repairs should be performed by a qualified technician.