Symptoms
- Cycle time on display keeps increasing or resetting
- Normally 2-hour cycle runs 4+ hours
- Water seems to reheat multiple times
- No error codes shown, just extended runtime
Likely causes
- CommonCold incoming water requiring extra heating timeThe dishwasher heats water internally, and cold supply water extends this significantly.
- CommonSensor-based cycle extending wash time for dirty waterMany dishwashers have soil sensors that add extra wash time when water stays cloudy.
- PossibleEco or sensor cycle selected instead of a normal cycleThese modes intentionally run longer using less water and lower heat.
- PossibleHeating element working harder than normalA partially failing but still functional element can take much longer to reach target temperature.
- Less commonMultiple wash and rinse fills due to soil sensor readingsHeavily soiled loads on a sensor cycle can trigger extra fill-and-drain cycles.
What to do
- Run the hot water at the kitchen sink until steaming before starting the dishwasher to reduce internal heating time.
- Check which cycle is selected; eco and sensor cycles are designed to run longer than normal or quick cycles.
- Scrape heavy food debris off dishes before loading, since very soiled loads can trigger extended sensor cycles.
- Note if the extended time happens on every cycle type or just eco/sensor modes.
- If even quick or normal cycles are taking dramatically longer than the manual states, the heating element may be underperforming.
- Have a technician test the heating element's performance if extended runtimes happen consistently across all cycle types.
Tools and parts
- None
When to call a pro
If every cycle type runs far longer than the manual's stated times, have a technician check the heating element and water temperature sensor.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.