What does the Hotpoint F07 error code mean?
F07 (or 7 flashing lights) typically indicates a fault with the turbidity sensor (the component that detects how dirty the wash water is) or a water level/pressure switch issue. The machine cannot correctly determine whether the water is clean enough to proceed or whether it has filled to the correct level.
🔍 Symptoms
- Machine gets stuck in the pre-wash or main wash phase and will not advance
- Cycles run for an unusually long time
- The machine repeats the same phase multiple times
- Water level appears incorrect — either too high or too low
- Error appears early in the wash cycle
How to fix the HOTPOINT F07 error code
- Clean the turbidity sensor — it is located in the sump area near the filter. It looks like a small plastic window or lens. Clean it with a soft cloth to remove any grease or limescale coating.
- Clean the filter thoroughly, as a dirty filter can cause incorrect turbidity readings.
- Check the pressure switch and its connecting hose for any blockages or kinks.
- Reset the machine by unplugging it for 10–15 minutes and retrying.
- If the error persists, the turbidity sensor module may need replacing — this is a relatively inexpensive part on most Hotpoint models.
Frequently Asked Questions (FAQ)
Q: What does a turbidity sensor do in a dishwasher?
A: It measures how cloudy (dirty) the wash water is. This allows the machine to decide whether to extend the wash phase or move on to rinse — it is part of the energy-saving ‘eco’ intelligence.
Q: Can limescale cause F07?
A: Yes. In hard-water areas, limescale deposits on the turbidity sensor lens can make the water appear permanently ‘dirty’ to the machine, causing it to loop indefinitely.
Q: Will a dishwasher cleaner product fix an F07 fault?
A: Sometimes. If the fault is caused by a limescale-coated sensor, running a descaling cycle with a proprietary dishwasher descaler can resolve it without replacing any parts.
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