C-110-170-200E R11 Page 13
Troubleshooting
Symptom Rectification
Main switch is turned on the High Pressure
Cleaner will not run.
Check power supply connection for faulty
components
• Make sure the socket is inserted correctly
• Check if fuse is blown, replace if necessary.
Motor is humming & Pump does not give
pressure or low pressure
Voltage is too low as compare to specification.
(Check main voltage)
• Motor phase is missing (For 3 phase application).
Check the connection box voltage with a meter
• High-pressure pump is blocked
Pump pressure drops and the High Pressure
Cleaner works irregularly
Strain filter is clogged.
• Water supply from the tap is insufficient.
• Clean the strain water filter
Pump continuously stops and starts, when
the spray-gun trigger is activated.
The high pressure nozzle is partly clogged.
Turn off the High Pressure Cleaner, dismantle the
high-pressure nozzle and remove the extraneous
matter. Replace if damaged
High pressure cleaner does not reach the
proper working pressure when the spray-
gun handle is activated
The high-pressure nozzle is clogged.
• Dirt in the by-pass valve.
• The pump sucks air.
• Turn off the High Pressure Cleaner. Clean the
nozzle.
• Inspect the low pressure supply, while spray-gun
trigger is activated, ON the machine on again.
• Repeat the procedure again; now with the trigger
released. If the problem still occurs, by-pass valve
should be dismantled and the extraneous matter
removed.
High Pressure Cleaner only works with
approximately 2/3 of the maximum
pressure, and the high-pressure hose is
vibrating.
Valves are dirty
• Remove the dirt and check to ensure the valve flaps
are movable and fit tightly.
Noisiness
The pump sucks air.
• One or more valve springs are broken or down.
• Extraneous matter in the valves.
• Crankcase or motor bearings worn out.
• Inspect the low-pressure supply. Replace springs.
• Clean the valves. Replace the bearings.
Water in the oil
The O-ring casing is worn out.
• High moisture in the air (condensing inside the
crankcase)
• The seals are completely worn out.
• Check or replace the O-ring.
• Renewal of the crankcase oil more often.
• Replace the seals.
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