Display shows 84C; compressor may not start, and refrigerator does not cool.

Safety first: This error involves high-voltage components. Do not touch the compressor or inverter wiring with power connected. If you are not experienced with electrical work, contact a professional.

Step 1 – Power cycle the refrigerator:

• Unplug the refrigerator or switch off the breaker.
• Wait at least 5–10 minutes to allow the inverter to discharge.
• Restore power and see if 84C returns.

Step 2 – Check ventilation and load:

• Ensure there is adequate clearance around the refrigerator for airflow.
• Verify that the condenser coils (rear or bottom) are not clogged with dust; clean gently with a brush or vacuum.

Step 3 – Listen for compressor operation:

• After restoring power, listen at the back of the unit.
• If the compressor hums briefly and clicks off or does not start at all, the compressor or inverter may be faulty.

Step 4 – Professional diagnosis:

• 84C typically requires a technician to test the Inverter Compressor, Inverter PCB, and wiring.
• Do not attempt to open the sealed system yourself.