Error code
live-operation-timer-economy-fault-blink Serious indicator fault
How it shows on the unit OPERATION and TIMER lamps blinking while ECONOMY blinks quickly, excluding the 5-blink filter-fitting pattern, in the live operation state
Applies to 2 models
What this means
The manual treats this indicator combination as a fault requiring service, except when OPERATION and TIMER each blink 5 times and ECONOMY blinks quickly, which indicates incorrect dust-box or filter fitting.
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.