Answer:
When both the operation and timer lights on your Fujitsu mini-split are blinking, it usually indicates a system error or a maintenance requirement. In our experience, this can happen due to issues such as a clogged filter, refrigerant problems, or a fault in the unit’s sensors. These lights serve as a diagnostic tool, and their blinking pattern can often point to a specific error code. Start by cleaning the filters and checking for blockages around the indoor and outdoor units. If the lights continue to blink, resetting the unit or consulting a professional may be necessary.
More On: Fujitsu Mini-Split Operation and Timer Light Blinking
The operation and timer lights blinking together signal that your Fujitsu mini-split has detected an issue affecting its performance. These lights often flash in a specific sequence, which corresponds to a fault code listed in the system’s manual. In our experience, common causes include refrigerant leaks, communication errors between the indoor and outdoor units, or a malfunctioning sensor. Resetting the system by turning it off at the breaker for a few minutes may resolve minor issues.
We’ve also found that these blinking lights can sometimes indicate routine maintenance requirements, such as cleaning the filters or coils. Ensuring regular maintenance not only helps prevent these alerts but also keeps your system running efficiently. If troubleshooting doesn’t fix the problem, it’s best to contact a Fujitsu-certified technician to diagnose and repair the issue before it escalates.
