Troubleshooting Guide for Hyundai 3050psi 210bar Hot Pressure Washer, 3-Phase | HY210HPW-3

Before doing any work on the machine, disconnect the electricity and water supplies and discharge the pressure. Proceed systematically to identify faults following the chart below; if you are still unable to eliminate the problem, call in the Authorised After-Sales Service.

Fault	Cause	Repair
When the main switch is turned on, the machine does not start	- Plug not properly connected. -The connection panel fuses are burnt out.	- Carefully check the plug and the electric cable. - Check them and replace them.
The motor hums but does not start	- A phase is missing (in three-phase models). - Low voltage. - The high-pressure pump is blocked.	- Contact an authorised service centre. - Contact an authorised service centre. - Contact an authorised service centre
The motor stops suddenly or after a while	- The motor-protecting switch is on because of insufficient mains voltage.	- Check the value of the mains voltage. - Contact an authorised service centre.
When the lance is turned on pressure values decrease and increase	- The nozzle is either clogged or deformed. - Either the boiler coil or lance is clogged with limestone.	- Either clean it or replace it. - Descaling.
To much vibrations at the delivery	- The pressure tank is run down. - The valves are worn out or dirty	- Check the pressure in the tank. - Check and/or replace.
The pump does not reach the fixed pressures	- The pump sucks air. - The valves are worn out. - The setting valve area is worn out. - The nozzle is unsuitable or worn out. - The seals are worn out.	- Check the suction pipes. - Check and/or replace. - Contact an authorised service centre. - Contact an authorised service centre.
Irregular pressure fluctuations	- The suction and/or delivery valves are worn out. - Presence of foreign matters in the valves, which generates bad functioning. - Air suction. - The seals are worn out.	- Check and/or replace. - Check and clean the replace. - Check the suction pipe. - Check and/or replace the seals
Pressure leakage	- The nozzle is worn out. - The suction and/or delivery valves are broken or down. - Presence of foreign matters in the valves, which generates the valves bad functioning. - The setting valve area is worn out. - The seals are worn out.	- Replace the nozzle. - Check and/or replace the valves. - Check and clean the valves. - Check and/or replace the setting valve area. - Replace the seals.
Noisiness	- Air suction. - The suction and/or delivery valve springs are broken or down. - Foreign matters in the suction and delivery valves. - The bearings are worn out. - Extreme liquid temperature.	- Check the suction pipes. - Replace the valve springs. - Check and clean the suction and delivery valves. - Replace the bearings. - Reduce the liquid temperature.

Fault	Cause	Repair
Water is in the oil	- The O-ring casing is worn out. - High moisture in the air. - The seals are completely worn out.	- Check and/or replace the O-ring. - Replace the oil with double frequency in respect of the one suggested. - Replace the seals. Fault Filtrations of water from
Filtrations of water from the drains between the casing and the head	- The seals are worn out. - The piston is worn out. - The O-ring of the piston cap is worn out.	- Replace the seals. - Replace the piston. - Replace the seal.
Filtrations of oil from the drains between the head and casing	- O-ring seals of the casing are worn out.	- Replace the seals.
Turning on the burner switch the boiler does not start	- No fuel. The fuel filter is clogged. The fuel pump is either blocked or burnt out. - Damaged thermostat. - Ignition spark insufficient or totally lacking. - The space among the electrodes is not correct. - Burn out fuse	- Check the level in the tank and check whether the rigid suction pipe is clean. - Replace the line filter. - Contact an authorised service centre.
The water is not hot enough	- Poor boiler performance. - Boiler coil clogged with limestone.	- Clean burner nozzle filter. - Clean fuel filter. - Check diesel pump pressure. - Descaling.
Too much smoke from the chimney	- Combustion is not correct. - Impurities or water in the fuel.	- Clean fuel filter. - Clean the boiler. - Empty the tank and clean it carefully. - Clean fuel filter as well.
Insufficient detergent suction	- No detergent in the tank. - Incrusted injector. - Either coil or tube or lance are clogged	- Fill the detergent tank. - Clean it. - Either cleaning or descaling.

If you need any spare parts for your Hyundai petrol pressure washers, please take a look at our page: https://power-spares.co.uk/

For further assistance, call our after-sales team on 01646 687880 or send email to [e-mail]

For more information, helpful hints, and tips, visit the Hyundai Power Equipment website hyundaipowerequipment.co.uk