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Troubleshooting
Symptom
1. The pump doesn't run.
. The pump does not prime.
3. Low flow/pressure.
4. Pump is excessively noisy.
10
cause
1.1 Tripped thermal protector
or blown fuse.
1. Faulty wire connection or
power supply.
1.4 Motor malfunctioning.
1.5 Pump/motor frozen.
.1 The water tank is empty.
. Debris under/in the valves.
.3 Perforated diaphragm.
.4 Leak on inlet side of pump.
.5 Inlet or outlet plumbing
restricted.
3.1 Lean on outlet side of
pump.
3. Perforated diaphragm.
3.3 Motor malfunctioning.
3.4 Debris under/in the valves.
4.1 Inlet or outlet plumbing
restricted.
4. Restriction on outlet side of 4..1 Ensure that the valves are
the pump/too high pressure
4.3 Defective motor.
Solution
1.1.1 Check the fuse. Let the
motor cool down before
restart if it is overheated.
1..1 Check the battery/power
supply, main switch and
wiring.
1.4.1 Change pump.
1.5.1 Thaw pump and system
and check for damage.
There is a risk of damage
if a frozen pump/motor
is started.
.1.1 Fill up the tank.
..1 Open the pump by body
by unscrewing the two
screws and clean the
valves. Clean the outlet
valves. (Viking Power
Vacuum.)
.3.1 Replace the diaphragm.
.4.1 Check tightness of hose
connections.
.5.1 Check the plumbing and
the valves.
3.1.1 Check the tightness of
the connections. Check
the hose for possible
damage.
3..1 Replace the diaphragm.
3.3.1 Replace the pump.
3.4.1 Open the pump body by
unscrewing the two screws
and clean the valves. Clean
the outlet valves. (Viking
Power Vacuum.)
4.1.1 Check the hoses and the
plumbing.
open.
4.3.1 Replace the pump.
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