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Tips for troubleshooting a Samsung dishwasher with an HE (heating element) error

Samurai Appliance Repair Man


This problem could manifest as the dishwasher running nonstop and not entering the drying cycle. Academy Fellow john63 points us in the right direction:

Check the continuity of the HEATING ELEMENT with a test meter---if "open" replace the HEATING ELEMENT.

If "good"---it's very likely that the HEATER RELAY---located on the right side of the dishwasher at floor level---has failed.

During the DRY CYCLE---there should be 120 volts AC coming from the HEATER RELAY---to the element.

Most HEATING ELEMENT or HEATER RELAY failures occurred in homes that had a "Tankless/Instant Water Heater".

Other possibles are:


2) MAIN BOARD (very rare)

Part links:

Heating element ==> http://www.repaircli...Number=DMR78AHS

Heater relay ==> http://www.repaircli...1000260/2028620

Door latch ==> http://www.repaircli...400002B/1603323

Main circuit board ==> http://www.repaircli...Number=DMR78AHS

Source: Samsung DMR78AHS dishwasher runs nonstop and do not enters drying cycle

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