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Solve common Ariston appliance faults faster with practical, easy-to-follow guides. Each article explains what the error code means, the likely causes, and the quickest steps to try at home. Save time, avoid guesswork, and know when a repair is within reach.
The model number and display symbols help distinguish an operating status from a fault that needs inspection.
Identify the exact model before resetting the heater, ordering parts or deciding whether it needs replacing.
The exact model and full display message are essential to interpreting code 910 without assuming the wrong fault.
A flame fault does not identify a failed part. Safe external checks and when an authorised technician is needed.
An A4 warning does not mean the same thing on every model. Identify your heater before attempting a reset.
An ignition lockout does not identify a faulty part. Understand which checks are safe and which need a technician.
A boiler display can make 5 look like S. Reading the warning correctly helps avoid repeated resets and needless parts.
The fault usually points to the electronics or the internal configuration. Here are the causes and solutions.
Code A3 indicates a smoke evacuation and safety lock issue. These are its causes and proper inspection.
Error 101 in an Ariston boiler usually indicates overheating and requires checking circulation, pressure, and sensors.
Low pressure can cause the boiler to lock out. This is how to identify the cause and the correct response.
The power-on warning is often confused with a serious fault, although in reality it marks a startup and locking sequence.