Trouble Shooting
05
Fluctuating Pressure.
1. Pump sucking air.
2. Valves dirty, worn out or
stuck.
3. Pump seals worn out.
1. Check that hoses and
connections are air-tight.
2. Clean and replace, or refer to
manufacturer
Water leaking from the pump.
1. Seals worn out.
1.Check and replace or refer to
manufacturer
The motor stops suddenly.
1. Thermal saftey switch has
tripped due to over heating
1.Check that the mains voltage
corresponds to specifications
2. Switch off the unit and let it
cool for a few minutes.
The pump does not reach the
necessary pressure.
1. Water inlet filter is clogged.
2. Pump sucking air from
connections or hoses.
3. Suction/Delivery valves are
clogged or worn out.
4. Unloaded valve is stuck.
5. Lance nozzel incorrect or
worn out.
1. Clean the water inlet filter.
2. Check that all supply
connections are tight.
3. Check that the water feed-
ing hose is not leaking.
4. Clear or replace valves.
5. Loosen and re-tight regula-
tion screw.
6. Check and/or replace.
When switched on the unit
does not start working.
Fault
Repair
Probable Cause
1. Plug is not well connected
or electric socket is faulty
2. The main voltage is insuffi-
cient, lower than minimum
requiremnet.
3. The pump is sucking air
4. Thermal saftey switch has
tripped.
1. Check plug, socket and
fuses.
2. Check that the mains volt-
age is adequate.
3. Refer to after strorage
instructions.
4. Switch off the unit and let
the motor cool for a few
minutes.
5. leave lance open
