The F61 code indicates an internal fault in the AGC01 control unit and requires a careful technical inspection.
The panel indicates a fault in the BCC Service key and the boiler may be blocked. Keys to understand it and act accordingly.
The boiler locks due to a BCC key or a failed load of the internal file. Keys to understand the fault and get out of the...
A configuration fault in the PSU board leaves the boiler without a clear response and requires specialized technical inspection.
The boiler is protected against overheating: causes, safe tests, and signs that a technical inspection is needed.
Temperature lockout at the outlet usually comes from poor circulation, low pressure, or a faulty pump.

Keys to know when to fix an appliance and when to replace it without incurring unnecessary expenses.
The alert indicates an imbalance between outbound and return flow; checking flow rate and pressure is usually key.
The fault indicates an open RL input in the PCU and usually requires technical inspection.
The B09 fault usually indicates an internal power supply or circuit board problem and requires technical inspection.
The warning indicates an open input on the control board and requires a technical inspection.
The warning is usually related to a lack of communication between electronic control boards and requires technical inspection.