Answer:
A blinking green light on your Fujitsu mini-split often indicates a system alert or error that requires attention. In our experience, this can happen when there’s an issue like a clogged filter, refrigerant imbalance, or a communication error between the indoor and outdoor units. Many of our customers have also seen this light blink when the unit is in defrost mode during colder months. While some of these alerts resolve automatically, it’s a good idea to check the user manual or reset the system if the blinking persists. If the issue continues, we recommend contacting an HVAC professional for a thorough inspection.
More On: Why Is My Fujitsu Mini-Split Blinking Green?
The blinking green light acts as a diagnostic signal, helping to identify potential issues with your mini-split system. For example, if the light blinks in a specific pattern, it may correspond to a fault code that provides more detailed insight into the problem. In our line of work, we often use these codes to pinpoint errors like sensor malfunctions, circuit board issues, or refrigerant leaks. Referring to the system’s manual or reaching out to a Fujitsu-certified technician can help decode the problem.
Sometimes, the blinking green light is simply part of the system’s normal operation, like when the unit enters defrost mode to prevent ice buildup on the outdoor unit. However, if the light continues to blink without any noticeable system performance, it’s crucial to address the issue promptly to avoid further complications. Regular maintenance, like cleaning filters and ensuring proper airflow, can help minimise the occurrence of such alerts.
