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The boiler locks due to an abnormal flame detection. Find out what to check before calling the technician.
The boiler cuts off and restarts the cycle when it detects an anomaly between flame, power, and outlet temperature.
The boiler detects a flame with the burner inactive: the electrode, wiring, or control board may be behind the fault.
The fault usually points to overheating: sensor, circulation, air, and pressure account for most cases.
The boiler locks due to a flue fault: this is how the protection works and what to check.
The blockage indicates a fan and control failure. Keys to understanding it and checking the fault.
The warning indicates a flame problem at startup. These are its causes and the checks that provide clarity.
The A23 indicates a parameter failure in the circuit board and usually requires specialized technical diagnosis.
The boiler locks out due to a configuration or pressure fault. These are the causes and what to check first.
The fault usually points to the supply sensor or an inconsistent temperature reading; this is how it is interpreted and checked.
The heating probe protection usually trips due to a faulty sensor, a disconnected one, or one with no stable reading.
The fault indicates the ABM03 control unit; these are the keys to interpret it and act safely.