BoilerFaultCodesAriston 14 Fault Code
The Ariston 14 fault code means: your boiler is struggling to clear fumes properly, so it has safely shut itself down to prevent carbon monoxide buildup.. It appears on 7 Ariston models in our database.
Technical description: General check of the discharge/ventilation of the combustion byproducts.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Avoid the next call-out bill
A cover plan would handle faults like 14: no call-out fees, no surprise bills.
Affiliate links. We may earn a commission at no extra cost to you.
Ariston models that show the 14 fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Ariston 14 fault code information on this page is sourced and cross-checked against the official Ariston service / installation manuals for each affected model.
- Ariston Challenger 80E manual (PDF)
- Ariston E-Combi One 30 manual (PDF)
- Ariston Eurocombi A/23 MFFI manual (PDF)
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026