Microwave stops during cooking and displays E05; may occur after several minutes of operation.

Safety first: Unplug the microwave before any inspection.

User-level checks:

• Allow the microwave to cool completely for at least 30 minutes; then, try again with a small load (cup of water). If E05 reappears quickly, the sensor circuit is likely faulty.
• Ensure vents are not blocked and that the unit is not installed in a confined space, which could cause overheating.

Technician-level checks:

• Locate the cavity temperature sensor (usually a small probe or thermistor clipped to the cavity wall or waveguide area).
• Inspect the sensor and wiring for damage, corrosion, or dislodged clips.
• Disconnect the sensor and measure its resistance at room temperature; compare the reading with Hoover service specifications. A reading of near 0 Ω (short) or infinite (open) indicates failure.
• Check the continuity of the harness from the sensor to the control PCB.
• If the sensor and wiring are good, suspect a faulty control PCB.

Recommendation: Replace the cavity thermistor if it is out of specification. If you are not comfortable opening the cabinet, contact a technician.