Vokèra · Unica i
A09 boiler fault code
Unica i28 / i32 / i36 combi
What A09 means
Flue thermistor over temperature or flue thermistor counter fault
Emergency guidance
If you smell gas, a CO alarm sounds, anyone feels unwell, or there is an unsafe flame, leave and call 0800 111 999 from outside.
Open the emergency safety guideWhen to contact an engineer
Your boiler has shut down for safety. Don't keep resetting it. Leave it off and get a Gas Safe engineer to check it.
Renting? Report it to your landlord or housing provider first. They are responsible for gas safety and boiler repairs, and the repair should not cost you.
Source and provenance
- Vokèra Unica i28 / i32 / i36 Users Instructions and Installation & Servicing Instructions · users’ “Fault codes” table, PDF p. 7 (printed p. 5); installer alarm table, PDF p. 30 (printed p. 28)
users instructions and installation & servicing instructions
Cod. 20038660 - 10/13 - Ed. 5