Boilers covered:

  • Combi Compact HRE
  • Combi Compact ECO RF
  • Rapid and Rapid Plus
  • Compact HRE OV
  • Compact HRE SB
  • Intergas Xtreme 24
  • Intergas Xtreme 30
  • Intergas Xtreme 36
  • Intergas Xclusive
Note: Low-pressure code (0.0) is often user-fixable. Most others require a Gas Safe engineer.

Modern Codes (Xtreme / Xclusive)

Error codePossible faultIf ticked try the troubleshooter
F000Heat exchanger sensor S0 defective✕
F001Temperature too high during central heating demand✕
F002Temperature too high during DHW demand✕
F003Flue gas temperature too high✕
F004No flame during start-up✓
F005Flame failure during normal operation✓
F006Flame simulation / false flame✕
F007No or insufficient ionisation flow✕
F008Incorrect fan speed✕
F009Burner controller internal fault✕
F010 / F011Sensor fault (heat exchanger / flow sensor)✕
F012Flue gas sensor fault✕
F016Sensor fault✕
F018Blocked flue or air supply duct✕
F019Sensor fault✕
F027Outdoor sensor short circuit✕
F028 / F029Sensor / communication fault✕
F030 / F031Gas valve / controller fault✕

Classic Codes (HRE / ECO RF / Rapid)

Error codePossible faultIf ticked try the troubleshooter
0Sensor fault after self-check✕
0.0Low system water pressure✓
1Temperature too high✕
2S1 and S2 sensors interchanged✕
4No flame signal✓
5Poor flame signal✕
6Flame detection fault✕
8Incorrect fan speed✕
10–14Sensor fault S1 (flow)✕
20–24Sensor fault S2 (return)✕
27Outdoor sensor short circuit✕
29 / 30Gas valve relay faulty✕