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For some unknown reason manufacturers don't publish the meaning of fault codes for many of their products or only publish a limited number of them. Worse, they often change the fault codes on a model by model basis. Below is a list of the fault codes that I know about for the Hotpoint DWF50 dishwasher in white. I imagine the fault codes are the same for the DWF50 in silver / grey and for the DWM55 since it has the same manual. If you know any other fault codes please pass them on by contacting us (doozer).
| Fault Indicator | Fault Description |
| Wash indicator lights 4 + 5 (fast + pre) flashing rapidly. | No water. Most likely you have forgotten to switch the water to the dishwasher on. |
| Wash indicator lights 3 + 5 (eco + pre) flashing rapidly. | Filter is clogged. Pull out the filter and clean it. |
| Wash indicator lights 4 + 6 (fast + delicate) flashing rapidly. | Heating element has blown. Machine will likely start a wash and then cut out when it needs hot water and finds the element not working. |
| Runs for approx. 3 minutes and then stops. Lights 3 + 4 (eco and fast) flash. |
Probably caused by being plumbed into a hot rather than cold water supply. The incoming water is hotter than required for the wash which causes the machine to cut out. Plumbing the machine into a cold water supply will fix the problem with no apparent long term problems. A helpful reader has informed me that this fault code can also be caused by the arm of a Lego man getting past the filter and lodging itself in the inside the machine (not sure where it got stuck). Looks like Lego men are incompatible with dishwashers. |
| Light 3 (eco) flashes. |
Water is present in the flood catching tray at the bottom which usually indicates that there is a leak somewhere. More often than not this is just a pipe with a poor fitting and simply tightening the clip is enough to stop the leak. Our machine had a very slow leak from one pipe (not enough to trigger the alarm) which was fixed in this way. The leak is detected by a small float switch located in the flood catch tray. Undo 4 screws on the metal plate under the dishwasher 3 at the front 1 at the back, this reveals The pump check the seals are in place on the waste pump. |
A reader has pointed out that these error codes also seem to work for the Hotpoint DWF60.