Hard water is rich in calcium and magnesium; when heated it leaves scale on hot parts and small openings. Over time heating efficiency can drop and white spots appear on dishes.
Signs of scale
- White spots on glasses and dishes.
- Clothes feel rough.
- Slow heating or long cycles.
- Spray-arm holes partly blocked.
Prevention in the washer
- Run Tub Clean periodically.
- Dose detergent for your water hardness.
- Clean the inlet screen.
Prevention in the dishwasher
- Use rinse aid.
- On models with a softener, use dishwasher salt and set hardness per the manual.
- Clean spray arms and the filter.
Caution
Don't use descalers not recommended in your manual, and never mix cleaning products.
FAQ
Does scale cause faults?
It can contribute to weaker heating and blocked openings over time.
How do I know my water hardness?
Use hardness test strips or ask your water supplier.
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