TROUBLESHOOTING
SYMPTOMS | CAUSES | REMEDIES |
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The water pump will not start | The motor thermic protection is open | Check the mains voltage (+/- 5% |
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| tolerance). Check the phases |
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| in the plug are connected well. |
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The water pump will not enter | The | Replace the valve or the gasket |
in bypass |
| and check the pressure valve |
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| body wear. |
| Leakage from the water system | Eliminate the leaks |
| of the gun |
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The water pump does not reach maximum pressure
Nozzle worn | Replace the nozzle |
Pressure ball or adjustment housing | Replace the faulty part |
worn or spring broken |
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Pressure valve gaskets worn | Replace the valve gaskets |
Pistons seal gasket worn | Replace the gaskets |
Nozzle holding head in position | Turn the head on high pressure |
low pressure |
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Strong vibrations on the water pump | Water supply insufficient | Check the water supply flow and |
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| the relative pressure (2÷10) |
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| Check the water filter and clean |
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| it if necessary |
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| Prime the pump without the lance |
| Alien matter under a check valve | Check the valves, clean and reassemble |
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The burner will not start | Diesel filter blocked | Clean the filter |
| Diesel nozzle blocked | Clean the filter |
| Worn or broken electrodes | Replace the electrodes |
| The pressure switch remains open | Replace the pressure switch |
| Safety thermostat is open | Replace the safety thermostat |
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Anormal noise of Diesel pump | Low diesel | Fill diesel tank or work on cold water |
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No detergent suction | High viscosity of the employed | Further dilute the detergent |
| detergent |
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| Detergent filter blocked | Clean the filter |
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