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The fault points to the BCC Service key and may leave the boiler blocked. This is what it indicates and how it is dealt with.
The boiler is protected against overheating or poor circulation. Causes, warning signs, and a useful table to help you act wisely.
The boiler locks due to an internal mismatch in the board. What to check and when technical intervention is advisable.
The boiler locks out due to insufficient gas pressure. Key points to identify the cause and act safely.
The boiler may become misconfigured after work on the circuit board. This is how the warning is identified and corrected.
The alarm indicates the domestic hot water accumulator probe and may shut off service for safety.
The alarm indicates a problem in the outlet probe of the plate heat exchanger and usually requires technical inspection.
The alert usually points to a faulty probe or a faulty contact. This is how it is interpreted and handled safely.
The notice blocks the ACS and points to a fault in the TAS system; these are the useful checks and when to call the technician.
The D99 code points to a conflict between control boards and requires specialized technical review.
An electronic fault can block the boiler and affect the unit’s startup, regulation, and safety.
The boiler detects an abnormal thermal output: real causes, safe checks, and when a technician is needed.