Technical summary
Guide on scale formation, heat-transfer loss, pitting corrosion and preventive cleaning in appliance heating elements.
Typical applications
- Automatic washing machines.
- Dishwashers.
- Equipment where the heater works in direct contact with hard water.
Key points
Unwanted thermal insulation
Scale acts as a barrier and increases tube temperature.
Perforation risk
Overheating and deposits may accelerate localized corrosion.
Simple maintenance
Periodic cleaning and water control reduce premature failures.
Recommended inquiry data
- Equipment brand and model.
- Heater dimensions and shape.
- Power, voltage and terminal type.
- Photo of the damaged part and housing.
- Water condition and usage frequency.
Related document
Related document: Open original PDF document.
Selection criteria
When the heater is already perforated or leaking to ground, it should not be cleaned for reuse: replacement is required.
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