Yes — if you never use your electric dishwasher, it’s a good idea to turn off the water and unplug it, but there are some important details to consider:
1. Turn Off the Water Supply
- Most dishwashers have a dedicated shutoff valve under the sink.
- Benefits:
- Prevents leaks from hoses or internal valves.
- Reduces risk of water damage if a component fails while unused.
- Tip: If you leave the water on, even a small leak can cause major damage over time.
2. Unplug the Dishwasher
- Why unplug:
- Eliminates electrical risk (shock, short circuits, or small standby power consumption).
- Protects the appliance from power surges.
- Tip: If the plug is hardwired, you could turn off the circuit breaker instead.
3. Extra Precautions When Leaving Unused
- Empty the dishwasher completely (no water left in the sump or filter).
- Leave the door slightly ajar to prevent mold, mildew, and odors.
- Clean filters and spray arms to remove debris that could rot over time.
- Check hoses for cracks or bulges; consider replacing old hoses before long-term storage.
- If you live in a cold climate, ensure no water remains that could freeze and damage components.
✅ Bottom Line
For long-term disuse: turn off the water, unplug (or shut off the breaker), clean the appliance, and leave the door open. This protects both your home and the dishwasher from leaks, mold, and electrical issues.