Fujitsu · Air Conditioners
Both the red and green LED lights on the indoor unit flash five times simultaneously. This is a critical error indicating a failure or malfunction of the compressor in the outdoor unit.
Click steps to track your progress.
Immediately turn off the air conditioner at the main circuit breaker.
Do not attempt to restart the unit, as this could cause further damage.
Contact a certified HVAC technician for a detailed diagnosis and repair or replacement of the compressor.
Ensure the outdoor unit has adequate airflow and is free from debris.