Troubleshooting
Symptom
cause
Solution
1. The pump doesn’t run.
1.1 Tripped thermal protector
1.1.1 Check the fuse. Let the
or blown fuse.
motor cool down before
restart if it is overheated.
1.2 Faulty wire connection or
1.2.1 Check the battery/power
power supply.
supply, main switch and
wiring.
1.4 Motor malfunctioning.
1.4.1 Change pump.
1.5 Pump/motor frozen.
1.5.1 Thaw pump and system
and check for damage.
There is a risk of damage
if a frozen pump/motor
is started.
2. The pump does not prime.
2.1 The water tank is empty.
2.1.1 Fill up the tank.
2.2 Debris under/in the valves.
2.2.1 Open the pump by body
by unscrewing the two
screws and clean the
valves. Clean the outlet
valves. (Viking Power
Vacuum.)
2.3 Perforated diaphragm.
2.3.1 Replace the diaphragm.
2.4 Leak on inlet side of pump.
2.4.1 Check tightness of hose
connections.
2.5 Inlet or outlet plumbing
2.5.1 Check the plumbing and
restricted.
the valves.
3. Low flow/pressure.
3.1 Lean on outlet side of
3.1.1 Check the tightness of
pump.
the connections. Check
the hose for possible
damage.
3.2 Perforated diaphragm.
3.2.1 Replace the diaphragm.
3.3 Motor malfunctioning.
3.3.1 Replace the pump.
3.4 Debris under/in the valves.
3.4.1 Open the pump body by
unscrewing the two screws
and clean the valves. Clean
the outlet valves. (Viking
Power Vacuum.)
4. Pump is excessively noisy.
4.1 Inlet or outlet plumbing
4.1.1 Check the hoses and the
restricted.
plumbing.
4.2 Restriction on outlet side of 4.2.1 Ensure that the valves are
the pump/too high pressure
open.
4.3 Defective motor.
4.3.1 Replace the pump.
10
Original instructions
> English
