HE
LG · LDPH7972S Top Control Smart Dishwasher with QuadWash Pro and Dynamic Dry
Heating element or circuit has failed. Water not reaching target temperature. Check element continuity (10-20 ohms). Check wiring and heater relay. Cycles may complete without heat but dishes won't be sanitized.
Error HE on the LG LDPH7972S Top Control Smart Dishwasher with QuadWash Pro and Dynamic Dry means: Heater Circuit Error. The top-ranked community fix is “Test and Replace the Heating Element and Heater Relay” (hard difficulty, ~90 min, DIY cost: $20-$30). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · dishwasher
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many dishwasher repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $120-$180.
Leak Sensor — Water in Base
Motor / Impeller Error
Abnormal Water Temperature
Child Lock Active
Control Board Moisture Damage
Door Gasket Deterioration
Drain Pump Clog/Failure
Dynamic Dry Fan Motor Failure
The LG LDPH7972S Top Control Smart Dishwasher with QuadWash Pro and Dynamic Dry has 8 other known error codes:
Error code HE also appears on 1 other LG model:
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