Trouble Shooting Chart - Johnson Pump AQUA JET UNO WPS 3.4 Bedienungsanleitung

ENGLISH
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.
12
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 over-
heated 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.