Hisense PureFlat / Multi Air Flow / Total No Frost Refrigerator: Evaporator defrost heating element open circuit E05; defrost cycle aborts on maximum timer and ice completely encases cooling coil.
On Hisense refrigeration units with PureFlat seamless flat-door design, Multi Air Flow columns, electronic dual-temperature zones, and inverter compressor: Burned-out aluminum sheath or calrod defrost heating element (~180–320 Ω nominal, 150–250W), or corroded silicone end seal plugs.
Disconnect defrost heater wiring leads. Measure resistance across terminals: expected ~180–320 Ω (infinite Ω indicates broken element). Replace heating element assembly. Press and hold Super Cool and Super Freeze buttons simultaneously for 6 seconds until display flashes and clears fault code history.
