Dacor DDW24M999US 24 in 42 dBA WiFi Connected Modernist Series Dishwasher HE Error Fix: Heater Error — Water Not Heating

Error code HE on the Dacor DDW24M999US 24 in 42 dBA WiFi Connected Modernist Series Dishwasher means: Heater Error — Water Not Heating. The water is not being heated to the required temperature for the selected wash cycle. Check the heating element for continuity with a multimeter. Check the temperature sensor (thermistor) — it should read approximately 40K-50K ohms at room temperature. Verify wire harness connections to the heater and thermistor. On some Dacor/Samsung dishwasher models, the heating element is integrated into the sump assembly. Scale buildup on the heater can reduce efficiency — run a descaling cycle.

The most successful fix is "Test and Replace Heating Element or Thermistor" (hard difficulty, ~60 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

This error is rated high severity. You should address it promptly — continued use could cause damage or safety concerns.

Yes — the top-ranked community fix ("Test and Replace Heating Element or Thermistor") is rated hard difficulty and takes about 60 minutes. Tools needed: Phillips screwdriver, Multimeter.

DIY cost: $20-$40. Professional repair typically costs $150-$250. Many homeowners save money by trying the top-ranked community fix first.

The Dacor DDW24M999US 24 in 42 dBA WiFi Connected Modernist Series Dishwasher has 8 other known error codes, including: 1E (Water Level Sensor Error), 3E (Wash Pump Motor Error), 4E (Water Supply Error — Not Filling), 5E (Drain Error — Not Draining), 9E (Low Water Level Error), and 3 more.