SUMMARY
TROUBLESHOOTING
PLEASE NOTE: Before doing any work on your machine, disconnect the electricity and water supplies and discharge the pressure. Proceed systematically through our troubleshooting guide to identify the issue; if you are still unable to find a resolution, please contact our aftersales department for assistance.
- When the main switch is turned on the machine does not does not start:
If you cannot get your pressure washer to start, it is possible that the plug is not properly connected, or that the connection panel fuses are burnt out.
Start by carefully checking the plug and electric cable. If they are without damage, check the fuses next and replace as required.
- The motor hums but does not start:
In the event that the motor can be heard to hum but does not start, there is most likely either a phase missing (in three phase models) or the voltage is too low. It can also be due to a blockage affecting the high pressure pump.
If this is the case, please contact our aftersales department for further assistance.
- The motor stops suddenly or after a while:
Motor stoppage is often due to the motor-protecting switch engaging due to insufficient mains voltage; always check that the value of your mains supply voltage is appropriate to your machine's requirements.
If this issue persists, please contact our aftersales department for further assistance.
- When the lance is turned on pressure values decrease and increase:
Intermittent pressure values can often be caused by either a clogged or deformed nozzle, or by limestone blockages in the boiler coil or lance.
This can be resolved by cleaning and de-scaling the lance; please see your manual for descaling and cleaning methods. If the problem persists, replacement lances are available from our spare parts website: Power Spares.
- There is too much vibration at delivery:
Excessive vibration can be caused by the pressure tank being run down, or the valves becoming worn out or dirty.
First, check tank pressure (operating pressure 150bar / 2175psi), and then ensure valves are cleaned and intact.
- The pump does not reach the fixed pressures:
There are several issues that can prevent operation at required fixed pressures. This can be caused by the pump drawing in air, worn valves or valve settings, unsuitable or worn nozzles, or wearing to seals.
Always check suction pipes are fitted and operating correctly, and check the relevant components are fit for purpose, and replace as required. Replacement valves, seals, and nozzles are available from our spare parts website: Power Spares.
- Irregular Pressure Fluctuations:
This can be caused either by wearing to the suction/delivery valves and seals; the presence of foreign matter clogging the valves; or by the intake of air via the suction pipe.
Check that your suction pipe is fully submerged and intact to prevent air intake, and always remember to regularly check the integrity of your machine's valves and seals, and clean/replace as necessary.
- Pressure Leakage:
Pressure leaks are often due to the wearing of components such as nozzles, valves, and seals: maintain your machine's pressure by regularly checking the nozzle, valves, and seals - remove any foreign matter, and clean as necessary.
If any component is excessively worn, replacements can be found on our spare parts website: Power Spares.
- Excessive Noise / Noisiness:
Whilst your HY150HPW-1 does not run silently, if you suspect your machine is emitting excessive noise there are several possible causes that could be to blame.
Air suction can often cause excessive noise, remember to check suction pipes are properly situated, and all fixtures are intact. You should also check that the suction and delivery valves are clear of foreign matter, and that the valve springs have not become damaged/broken.
If your machine's bearings are worn or have become loosened, your pressure washer's function can cause these to vibrate quite loudly; if bearings cannot be tightened then they should be replaced.
Extreme liquid temperature can also cause excessive noise; reduce temperature as required and take care to ensure your machine is not exceeding the standard operating specifications.
See your manual for further detail, and if you require additional assistance don't hesitate to contact our aftersales department.
- Water is in the oil:
Should you discover water in your Pressure Washer's oil, check seals and O-ring immediately, and replace as required.
If the problem persists, it is possible that your Pressure Washer is operating amidst cold air/high moisture, and your oil will require replacing more frequently (at least twice as often as manual suggests).
- Filtrations (leakage) of water from the drains between casing and head:
In the event of "filtrations" (or leaks/leakage) of water from between the casing and head of your pressure washer, check that the relevant seals and O-rings have not become worn; you should also check the piston and piston-cap. Replace as required.
- Filtrations (leakage) of oil from the drains between head and casing:
For "filtrations" (leaks/leakage) of oil between head and casing, check O-rings of casing (as above) for wearing, and replace as necessary.
- Turning on the burner switch does not start boiler:
If the boiler is not starting after turning on the burner switch, first ensure that fuel levels are sufficient, and that the filters and fuel pump have not become clogged or blocked; if the pump has burnt out, it will require replacing.
Next, check the thermostat has not been damaged and that the fuses have not burnt out - if either of these components have been compromised, they will also require replacing.
Replacement components are available via our spare parts website: Power Spares.
Alternatively, if ignition is insufficient or failing to spark, contact our aftersales department and they can advise further.
- Water is not hot enough:
Insufficient heat levels are caused by poor boiler performance or limestone clogging the boiler coil. Check and clean the burner nozzle and fuel filters, and descale the the boiler coil to ensure efficiency.
See the HY150HPW-1 manual for details on how to clean and descale your pressure washer (pg. 17-18)
- Too much / excessive smoke from exhaust/chimney:
Excess smoke from the exhaust or "chimney" is a product of incorrect fuel combustion and/or impurities or water present in the fuel.
To resolve this issue, you will be required to drain the fuel tank and clean it carefully, including filters. You should also drain and clean the boiler as well.
- Insufficient detergent suction:
Where there is insufficient/intermittent detergent suction, first ensure detergent in tank. If there is detergent present, check that injector, hose, and lance are not clogged; clean and descale as required.
WE HOPE THIS TROUBLESHOOTING CAN HELP RESOLVE YOUR ISSUE
IN THE EVENT YOU REQUIRE FURTHER ASSISTANCE PLEASE DON'T HESITATE TO CONTACT HYUNDAI POWER PRODUCTS AND WE WILL BE HAPPY TO ASSIST
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