Hyundai HYW10200, User Manual

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TROUBLESHOOTING
Should the cleaner malfunction, refer to the following table. Should troubles persist, refer to an
authorized expert technician.
CAUTION:
Before any repair, disconnect the
machine from the electrical supply .
PROBLEM REASON REMEDY
PUMP NORMALLY RUNS BUT
DOESN'T REACH THE REQUIRED
PRESSURE
Pump sucks air in Operate the pump with spray gun open
Inlet/outlet valves worn or dirty Clean or replace
Nozzle unsuitable or worn Check and/or replace
Seals worn Check and/or replace
Suction filter clogged Clean or replace
Pin of control valve Clean or replace
FLUCTUATING PRESSURE
Inlet/outlet valves worn, dirty or
clogged
Check/clean or replace
Air intake Check that hoses and fittings are air tight
Seals worn Check and/or replace
PRESSURE DROP
Nozzle worn Replace nozzle
Inlet/outlet valves dirty Check/clean or replace
Pin of control valve worn or clogged Check and/or replace
Seals worn Check and/or replace
NOISE
Air intake Check that hose and fittings are air-tight
Inlet/outlet valves dirty, worn or
clogged
Check, clean and/or replace
Bearings worn Check and/or replace
WATER IN OIL
Water-oil seal rings worn Check and/or replace
WATER DRIPPING FROM PUMP
HEAD
Seals worn Replace
O-ring worn Replace
OIL LEAKS
Oil seal ring worn Replace
THE MOTOR DOESN'T START
Not correctly plugged in Check cable plug and switch
No power supply Check cable plug and switch
THE MOTOR HUMS BUT DOESN'T
START
The mains voltage is insufficient,
lower than the minimum required Check that the mains power supply
is adequate
The pump is stuck or frozen
Check by manually turning the motor
(see MAINTENANCE)
Incorrect extension cable Replace extension cable
THE MOTOR SUDDENLY STOPS
Tripped thermal overload due to
overheating
Check that the mains voltage matches the
specifications. Switch off the motor and let
it cool for a few minutes
THE BURNER DOESN'T START
Lack of diesel
Check the diesel level and/or the float
Electrodes worn Adjust (see MAINTENANCE)
Electrodes damaged Replace
Diesel filter clogged Replace
Diesel nozzle clogged Clean the burner nozzle
Fuse of the burner and transformer
motor blown
Replace
The operations marked with the black square must be done only by qualified personnel
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