dH
Jenn-Air · JB36NXFXLE 36 in Built-In French Door Refrigerator with Preserva Food Care
The defrost heater circuit is reading open — no continuity through the heater element; the heater has failed and cannot melt ice from the evaporator coils; the evaporator will progressively ice over until airflow is completely blocked; replace the defrost heater assembly; on Jenn-Air built-in models, accessing the evaporator and heater requires removing the freezer interior shelves/bins and the rear evaporator cover panel; the heater is typically a glass-tube element or an aluminum foil heater attached to the evaporator
Error dH on the Jenn-Air JB36NXFXLE 36 in Built-In French Door Refrigerator with Preserva Food Care means: Defrost Heater Open. The top-ranked community fix is “Replace Defrost Heater Assembly” (hard difficulty, ~90 min, DIY cost: $15-$25). 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: $200-$300.
The Jenn-Air JB36NXFXLE 36 in Built-In French Door Refrigerator with Preserva Food Care has 8 other known error codes:
Error code dH also appears on 2 other Jenn-Air models:
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