English
5.906-736.0 Rev. 00 (07/15)
181
13.2 Faults without display on the console
Fault
Possible cause
Water pressure too low /
The device does not reach the full
pressure
Check / clean the water filter.
Check water supply volume, increase if necessary.
Check the water quantity in the two 250 l tanks
Open stop cock water tanks.
Bleed device. Check suction line for leaks / clogging.
Check frost protection valve.
Check/replace high-pressure nozzle.
Check the high-pressure hose; appropriate diameter?
Check safety valve for leaks / replace if necessary.
Check/adjust/replace overflow valve.
Check the pressure and suction valves for leaks / replace.
High and low pressure seals are worn; replace.
Check / adjust motor speed.
Check / adjust /grease / replace speed control.
Coupling motor - check / replace transmission.
Check / replace intermediate gear.
Water leak between cylinder head
and crankcase
Leakiness of 1 drop per minute and piston is acceptable.
Check / replace high pressure and low pressure seals.
Water is not being heated
Check / correct temperature settings.
Check / clean / replace flow switch (reed switch).
Check / refill filling level in the fuel tank
(If the bargraph shows < 3 bars, the burner is switched off).
Check / replace temperature sensor after the boiler outlet.
Check / replace fuel filter.
Check / replace the solenoid valve fuel pump.
Check / adjust setting fuel pump / replace pump.
Check / replace coupling fuel pump.
Check / replace blower motor and impeller.
Check / adjust the setting air flap.
Check / replace fuel nozzle.
Check / replace ignition cables.
Check / replace ignition transformer.
Check / adjust distances of the ignition electrodes.
Decalcify the heating coil.
Insufficient or no
function detergent
Check / refill the detergent level.
Check / correct setting of the dosing valve.
Clean filter detergent on the suction hose.
Check / replace the solenoid valve detergent.
Check the orifice plate at the inlet of the fine filter (in the inlet of the HP pump).
Summary of Contents for HDS 9/50 De Tr1
Page 46: ...46 English 5 906 736 0 Rev 00 07 15 1 Reflector on both sides 2 Marker light on both sides...
Page 182: ...182 English 5 906 736 0 Rev 00 07 15 13 3 Troubleshooting Yanmar diesel engine...
Page 184: ...184 English 5 906 736 0 Rev 00 07 15...
Page 185: ...English 5 906 736 0 Rev 00 07 15 185 14 3 Maintenance plan Yanmar diesel engine...
Page 189: ...English 5 906 736 0 Rev 00 07 15 189 HDS 13 20 and 17 20 safety block...
Page 190: ...190 English 5 906 736 0 Rev 00 07 15 HDS 9 50 and 13 35 pump head...
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