Indoor unit displays E8 and may shut down or limit operation.

Safety first: Turn OFF power before cleaning or opening the unit.

• Step 1 – Clean filters: Remove and wash the indoor air filters thoroughly. Let them dry completely before reinstalling.
• Step 2 – Check airflow paths: Ensure nothing is blocking the front of the indoor unit. Open all louvers and make sure curtains or furniture are not obstructing airflow.
• Step 3 – Inspect and clean coil: With the front panel open, inspect the evaporator coil. If heavily coated with dust, use a soft brush or coil cleaner designed for mini-splits. Avoid bending fins.
• Step 4 – Sensor inspection: Verify that the indoor ambient and coil sensors are properly positioned and secured. Damaged or dislodged sensors can misread temperature and trigger E8.
• Step 5 – Reset and test: After cleaning, power the unit back on and monitor operation. If E8 returns, the sensor or indoor PCB may need replacement.