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Find clear guides to boiler error codes, common faults and everyday problems, with simple steps to pinpoint the cause and fix it faster. Save time with practical help that explains what each warning means and how to act without guesswork. Ideal when you need a quick, easy solution and want to get your boiler working again.
The fault indicates the sensor of accumulator 2 and affects the hot water. This is how it is interpreted and why it usually requires a technician.
The boiler locks out due to an abnormal thermal reading: causes, signs, and safe checks.
The fault usually points to the internal electronics and requires specialized technical inspection to avoid further damage.
The boiler detects an abnormally low outlet temperature: causes, safe checks, and technical notice.
The boiler goes into alarm due to overheating. Here is the most likely cause and the safe response.
The warning indicates a shorted return probe. That is how it is interpreted, what to check, and when to intervene.
Error L07 points to the return probe and is usually due to a bad connection or a defective part.
The fault points to an abnormal return reading and can leave the boiler locked until the fault is resolved.
The code indicates excessive water return and is usually related to the probe or internal wiring.
The boiler detects an anomalous difference between supply and return. Causes, signs, and what to check logically.
The boiler detects an abnormal difference between supply and return. We tell you what causes it and what to check.
The boiler is protected against overheating: causes, real clues, and when it is advisable to intervene with a technician.