You are turning on your Comet pressure washer and it is not turning on, is not working, is not supplying or heating water – it’s a sign of the breakage. First of all, you need to determine the cause and 2 tables below will help you. Each of them is devoted to the problems of a particular model of pressure washer of this brand. This manual could help to find out the causes of failure and choose a way to repair it yourself.
Comet ETM 71 pressure washer troubleshooting
| PROBLEMS | CAUSES | REMEDIES |
|---|---|---|
| The high-pressure cleaner vibrates a lot and is noisy. | Water inlet filter dirty. | Follow the indications of the “ROUTINE MAINTENANCE” paragraph. |
| Suction of air. | Check the integrity of the suction circuit. | |
| Not enough water supply or too much priming depth. | Make sure the tap is completely open and that the water mains flow or priming depth are in conformity with the indications of the paragraph “OPERATION – PRELIMINARY ACTIVITIES” fig. 5 – Operation G. | |
| The high-pressure cleaner fails to reach maximum pressure. | Unloader/regulation valve set at a lower value than the maximum one. [ETM 100, ETM 130, ETM 150] Nozzle holder head in low- pressure mode . |
Turn the knob clockwise. |
| Worn nozzle. | Replace the nozzle | |
| Not enough water supply or too much priming depth. | Make sure the tap is completely open and that the water mains flow or priming depth are in conformity with the indications | |
| Faulty operation of the BA type water mains disconnector | See table in relative instruction manual. | |
| Low detergent suction | [ETM 100, ETM 130, ETM 150] Detergent suction filter clogged. | Follow the indications of the “ROUTINE MAINTENANCE” paragraph. |
| [ETM 100, ETM 130, ETM 150] Detergent too viscous. | Use a detergent recommended by the Manufacturer, and dilute in accordance with plate instructions. | |
| No water comes out of the nozzle. | No water. | Make sure the water mains tap is completely open or the suction hose can prime. |
| Faulty operation of the BA type water mains disconnector. | See table in relative instruction manual. | |
| Too much suctioning depth. | Make sure the priming depth is in conformity with the indications of the paragraph “OPERATION – PRELIMINARY ACTIVITIES” | |
| Water nozzle clogged. | Clean and/or replace the nozzle as indicated in the “ROUTINE MAINTENANCE” paragraph. | |
| The high-pressure cleaner stops during operation. | Tripping of system cutout device to which the high-pressure cleaner is connected (fuse, RCCB, etc). | Reset the cutout device. IN CASE THIS TRIPS AGAIN, DO NOT USE THE HIGH-PRESSURE CLEANER AND CONTACT A SKILLED TECHNICIAN. |
| Tripping of the ampere cut-out protection device. | Follow the indications of the “SAFETY DEVICES” paragraph. | |
| The high-pressure cleaner starts again spontaneously. | Leaking and/or dripping in the delivery circuit. | Check the integrity of the delivery circuit. |
| When the master switch is turned, the motor hums but does not start | Electrical system and/or extension inadequate. | Make sure the power line connection instructions have been followed (see the INSTRUCTION MANUAL – SAFETY PRECAUTIONS), with special reference to the extension used. |