Villager VHW 155, Original Instruction Manual, Page: 29 / 149

13
Villager VHW 155 (EN)
TROUBLE SHOOTING
FAULT PROBABLE CAUSE REPAIR
When switched on the
machine will not start working
Plug is not well connected or
electric socket is faulty.
The main voltage is
insufficient, lower than
minimum requirement.
The pump is stuck.
Thermal safety switch has
tripped. Check plug, socket.
Check that the main voltage is
adequate.
Refer to after storage
instructions.
Switch off the unit and let the
motor cool for a few minutes.
Leave the lance open.
Fluctuating Pressure
Pump sucking air.
Valves dirty, worn out or stuck.
Pump seals worn out. Check that hoses and
connections are airtight.
Clean and replace, or refer to
dealer.
Water leaking from the pump
Seals worn out. Check and replace, or refer to
dealer.
The motor stops suddenly
Thermal safety switch has
tripped due to overheating. Check that the main voltage
corresponds to specifications.
Switch off the unit and let it
cool for a few minutes.
The pump doesn’t reach the
necessary pressure
Water inlet filter is clogged.
Pump sucking air from
connections or hoses.
Suction/ delivery valves are
clogged or worn out.
Unloaded valve is stuck.
Lance nozzle incorrect or worn
out. Clean the water inlet filter.
Check that all supply
connections are tight.
Check that the water feeding
hose is not leaking.
Clear or replace valves.
Loosen and re-tighten
regulation screw.
Check and/or replace.