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Trouble-shooting chart
Symptom
1. Pump does not run.
2. Pump does not prime.
3. Pump cycles on and off
rapidly while water is demanded.
4. Pump cycles on and off rapidly
while water is not demanded.
5. Pump will not stop running when
water is not demanded.
6. Low flow/pressure.
7. Pump is excessively noisy.
10
Cause
1.1 Tripped thermal protector or blown
fuse.
1.2 Faulty wire connection or power
source.
1.3 Pressure switch malfunctioning.
1.4 Motor malfunctioning.
1.5 Pump/motor frozen.
2.1 Water tank empty.
2.2 Debris under valves.
2.3 Perforated diaphragm.
2.4 Leak on inlet side of pump.
2.5 Inlet or outlet plumbing restricted.
3.1 Restriction on outlet side of pump/
too high pressure.
4.1 Leak on outlet side of pump.
5.1 Leak on inlet side of pump.
5.2 Leak on outlet side of pump.
5.3 Perforated diaphragm.
5.4 Water tank empty
5.5 Pressure switch malfunctioning.
5.6 Low voltage to pump.
6.1 Leak on inlet side of pump.
6.2 Leak on outlet side of pump.
6.3 Perforated diaphragm.
6.4 Motor malfunction.
6.5 Debris under valves.
7.1 Pump is plumbed directly to rigid
tubing.
7.2 Pump head loose on motor.
7.3 Pump mounting is loose.
7.4 Pump mounting is too rigid.
7.5 Defective motor.
Remedy
1.1.1 Check fuse. If motor is overheated let it
cool down prior to restart.
1.1.2 Check battery/power supply, main
switch and wiring.
1.1.3 Change pressure switch.
1.1.4 Change pump.
1.1.5 Thaw pump and system and check for
damage. The pump/motor is liable to
damage when a frozen pump is started
2.1.1 Fill up tank.
2.1.2 Carefully flush pump with tap water at
nominal pump flow.Note! Flush in
nominal flow direction.
2.1.3 Replace diaphragm kit.
2.1.4 Check tightness of hose connections at
pump, filter and tank.
2.1.5 Check plumbing.
3.1.1 Outlet hose too small, must be of same
diameter as pump connection.
4.1.1 Check tightness of hose connections,
check hose for possible damage.
5.1.1 Check tightness of hose connections,
check hose for possible damage.
5.1.2 Check tightness of hose connections,
check hose for possible damage.
5.1.3 Replace diaphragm kit.
5.1.4 Fill up tank.
5.1.5 Change pressure switch.
5.1.6 Change battery/power supply.
6.1.1 Check tightness of hose connections,
check hose for possible damage.
6.1.2 Check tightness of hose connections,
check hose for possible damage.
6.1.3 Replace diaphragm kit.
6.1.4 Change pump.
6.1.5 Carefully flush pump with tap water at
nominal pump flow.Note! Flush in
nominal flow direction.
7.1.1 Install flexible tubing according to
installation recommendation, see page 9.
7.1.2 Tighten screws.
7.1.3 Tighten screws.
7.1.4 Use flexible tubing and make sure the
dampening rubber feet are used.
7.1.5 Change pump.
Original instructions
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