Error code
live-operation-and-timer-lamps-blink-with-fault Persistent abnormal operation indication
How it shows on the unit OPERATION and TIMER lamps blink during a persistent abnormal condition
Applies to 10 models
What this means
If the red OPERATION and green TIMER lamps blink and the problem remains after basic checks, the unit has detected an abnormal condition. The manual does not provide a user-readable fault code.
When to call a technician
This fault involves refrigerant, pressure, or electrical work that must be handled by a certified technician under EU F-gas rules. Do not attempt to open the refrigerant circuit, access mains wiring, or adjust pressure components yourself. Contact a qualified installer or servicer for this one.
See the Fujitsu manual (hosted by an authorized distributor)Hosted by an authorized distributor rather than by the manufacturer. We link to manuals, we never host them.