Baxi Quinta Ace fault E.04.15
FlueGas pipe blocked
ApplianceWhat it means
The flue gas pipe is blocked
Likely causes
- Flue gas outlet is blocked
- Incorrect use of parallel wall terminal causing pressure zone imbalance
- Obstructed or shut-off installation area vents causing insufficient combustion air supply
- Air inlet connection of boiler blocked
- Flue gas leak from appliance or flue system
Where to start
- Check that the flue gas outlet is not blocked
- Confirm air inlet and flue are in the same pressure zone
- Verify horizontal flue terminal configuration, not parallel wall terminal
The full answer, free
- 13 more checks in order
- The readings and component tests from the manual
- How to put it right, step by step
- The manual page for this fault (page 82), right under the answer
Safety: Isolate gas and power before you open the case. If you have been into the gas side, do a tightness test, and a combustion and flue check before you hand back. Gas Safe (UK) or RGI (Ireland) work only.
From the Baxi manual for the Quinta Ace. Check the model on the data plate before you order parts.
Other Baxi Quinta Ace fault codes
- A.00.34TOutdoor missing
- A.01.23Poor combustion
- E.00.04TReturn open
- E.00.05TReturn closed
- E.00.06TReturn missing
- E.00.08THeat ex open
- E.00.09THeat ex closed
- E.00.20TFlue gas open
- E.00.21TFlue gas closed
- E.01.045x flame loss error
- E.01.12Return higher flow
- E.01.24Combustion error
- E.02.13Blocking input
- E.04.01TFlow closed
- E.04.04TFlue closed
- E.04.05TFlue open
- E.04.06Max flue temp
- E.04.08Safety input
- E.04.10Unsuccessful start
- E.04.12False flame
- E.04.13Fan
- H.00.81RoomTempMissing
- H.01.05Max delta TF-TR
- H.01.06Max delta TH-TF