Microwave displays E9 and stops mid-cycle; sometimes accompanied by a burning smell.

Safety first: Unplug the microwave and allow it to cool completely before inspection.

• Step 1 – Allow cooling: Leave the door open for at least 30–60 minutes to let internal components cool down.
• Step 2 – Check usage conditions: Ensure you are not running the microwave empty or with inappropriate cookware (e.g., metal without food). Always follow OBH Nordica's loading guidelines.
• Step 3 – Inspect vents: Verify that all intake and exhaust vents are clear of obstructions. Clean dust and grease from grills using a soft brush and vacuum.
• Step 4 – Test cooling fan: During a short test cycle (after cooling and re-energizing), listen for the cooling fan. If it does not run, the fan motor or its supply circuit may be faulty.
• Step 5 – Check thermal cut-out: With power disconnected and cover removed, locate the cavity thermal cut-out (usually clipped to the cavity wall or top). Test for continuity. If open and non-resettable, replace it with the correct OBH Nordica-rated thermostat.
• Step 6 – Professional help: If E9 recurs after cleaning vents and replacing the thermostat, further diagnosis of the fan circuit and control board is required by a technician.