Error code
Givarfel:BT1 Outdoor sensor fault
Applies to 1 model
F730
What this means
The alarm log records a fault involving temperature sensor BT1, the outdoor sensor.
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.