dH
KitchenAid · KRFC300ESS 20 cu. ft. Counter-Depth French Door Refrigerator
The defrost heater circuit is reading open (no continuity). The heater has failed and cannot melt ice from the evaporator coils. Replace the defrost heater assembly. Accessing the evaporator requires removing the freezer rear panel. On KRFC300ESS French door models, the evaporator is behind the back wall of the freezer drawer.
Error dH on the KitchenAid KRFC300ESS 20 cu. ft. Counter-Depth French Door Refrigerator means: Defrost Heater Open Circuit. The top-ranked community fix is “Replace the Defrost Heater Assembly” (hard difficulty, ~90 min, DIY cost: $25-$40). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · refrigerator
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 refrigerator repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $180-$300.
Communication Failure
Compressor Overload / Overcurrent
Defrost Failure
Water Dispenser Slow or Not Working
Door Gasket Not Sealing
Defrost Thermostat Fault
Fresh Food Fan / Diffuser Fan Failure
Freezer Fan Failure
The KitchenAid KRFC300ESS 20 cu. ft. Counter-Depth French Door Refrigerator has 8 other known error codes:
Error code dH also appears on 1 other KitchenAid model:
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