Bosch, Siemens, Profilo Dishwasher Heat Pump Ring Heater Ø85 × 55 mm (Large)

This Bosch, Siemens, Profilo dishwasher ring heater is a ring-shaped heating element Ø85 mm in diameter and 55 mm high (large size). It sits in the machine's heat pump (circulation pump with integrated heater) and heats the wash water flowing through the pump. In the trade it is called a dishwasher heating element, heat pump heater or ring heater.

Which Size Do I Need?

This heater comes in three sizes, and the sizes are not interchangeable. Measure the diameter and height of the old heater and choose from the table.

Where Is It Used?

• In Bosch, Siemens and Profilo dishwashers whose heat pump has a ring heater.
• If the machine does not heat the water, dishes come out cold and dirty, or the machine trips the residual current device (fuse), the heater should be checked.

When Replacing

• First measure the diameter and height of the old heater; this part is Ø85 × 55 mm.
• The heater is in the heat pump housing; the pump has to be removed to replace it. Make sure the seals are seated correctly, otherwise water will leak.
• Compare the connector with the old heater.
• Unplug the machine and close the tap before removing or fitting it.

Technical Specifications

Frequently Asked Questions

Are the heat pump and the ring heater the same part?

No. The heat pump is the unit that combines the circulation pump and the heater; the ring heater is the heating part of this unit. If the pump motor is in good order, only the heater can be replaced.

Are Ø75 × 55 and Ø75 × 45 interchangeable?

No. The diameter is the same but the height is different, so the heater will not seat properly in the pump housing. Choose by measuring the height of the old part.

How can I tell if the heater is faulty?

With the machine unplugged, measure the resistance between the heater terminals with a multimeter; if it shows an open circuit or there is leakage to the body, the heater is faulty.