Washer stops during heating phase; display shows D05 and water remains cold.

Safety first: Unplug the washer. Water in the tub may be hot; allow it to cool before working.

Access the heater:

• Remove the rear panel (or front lower panel on some Brandt models) to access the heater terminals at the bottom of the tub.

Test the heating element:

• Disconnect the heater wires.
• Measure resistance across the heater terminals with a multimeter. Typical values are 20–30 Ω. If open circuit or shorted to ground (test between each terminal and the metal tub), replace the heater.

Check the NTC sensor:

• The NTC is usually clipped into the heater bracket or nearby in the tub wall.
• Disconnect its connector and measure resistance; it should change smoothly with temperature (e.g., 20 kΩ at room temperature). If reading is infinite, zero, or erratic, replace the NTC sensor.

Inspect wiring:

• Check for burnt connectors or melted insulation at the heater and NTC.
• Trace the harness back to the PCB and reseat plugs.

Reassemble and run a hot wash. If D05 returns with a good heater and NTC, the PCB heater relay or control circuit is likely faulty and should be serviced by a professional.