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Dishwasher Heating Elements: Round and Triangular Flange Types for Commercial Machines

Maintenance & Spare Parts · 3 November 2026 · 1 min read

Dishwasher Heating Elements: Round and Triangular Flange Types for Commercial Machines

A dishwasher heats wash and rinse water with flange-mounted elements. They work in hot, hard water, so they wear faster than most elements. Knowing the flange type makes ordering simple.

Round Flange Dishwasher Heating Element 755
Round Flange Dishwasher Heating Element 755 · View product

Round flange elements

The round flange element 755 bolts to the machine with a circular plate. The tank versions 757 and 753 are built for wash tanks.

Triangular flange elements

The triangular flange element 756 uses a three-corner plate that matches some machine designs.

Triangular Flange Dishwasher Heating Element 756
Triangular Flange Dishwasher Heating Element 756 · View product

Preventing scale damage

  • Descale the machine on a regular schedule.
  • Use a water softener where water is hard.
  • Never run the machine with a low tank level.

Replacement steps

  1. Switch off power and close the water supply.
  2. Drain the tank completely.
  3. Disconnect the wires and remove the flange bolts.
  4. Fit the new element with a new gasket and test for leaks.

Pair your dishwasher with a well-planned dish pit. See all heating elements or request a quote.

Frequently asked questions

Why do dishwasher elements fail?

Scale from hard water is the most common cause. It insulates the element and makes it overheat.

How do I tell round from triangular flange?

Look at the mounting plate on the element: round flanges are circular, triangular ones have three corners.

Do I need to drain the machine?

Yes. Always drain the tank and disconnect power before replacing an element.

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