Intergas Fault Codes

Select a fault code to see its meaning, common causes and how to fix it.

0 Fault code 0, which may appear as 0.0 or 0.00 depending on your Intergas model, indicates that the system water… Read more →
0.0 The 0.0 fault code on an Intergas boiler indicates that the central heating system pressure has dropped below the… Read more →
1 Fault code 1 on an Intergas boiler signals that the boiler's water temperature has climbed beyond its safe operating… Read more →
10 Fault code 10 on an Intergas boiler indicates that the PCB has detected a problem with the S1 sensor — the temperature… Read more →
11 Fault code 11 on an Intergas boiler indicates that the boiler's control board has detected either a problem with the S1… Read more →
12 Fault code 12 on an Intergas boiler indicates that the PCB is unhappy with the signal it is receiving from the S1… Read more →
13 Fault code 13 on an Intergas boiler indicates a problem with the S1 sensor on the heat exchanger. Intergas boilers use… Read more →
14 Fault code 14 on Intergas boilers indicates that the boiler's PCB has detected a problem with the readings coming from… Read more →
2 Intergas fault code 2 appears when the boiler's control board detects that the two water temperature sensors — S1… Read more →
20 Fault code 20 on an Intergas boiler signals a problem with the S2 temperature sensor — one of two NTC (Negative… Read more →
21 Fault code 21 on Intergas boilers indicates a problem with the S2 temperature sensor — the return-water sensor built… Read more →
22 Fault code 22 on Intergas boilers (HRE, Eco RF, Rapid and related iC3 PCB models) means the boiler's control board has… Read more →
23 Fault code 23 on an Intergas boiler indicates a problem with the S2 sensor — the secondary NTC (Negative Temperature… Read more →
24 Fault code 24 on an Intergas boiler indicates a problem with the S2 temperature sensor. This falls within the S2 sensor… Read more →
27 Fault code 27 on an Intergas boiler is an engineer-level diagnostic code that sits outside the small number of codes… Read more →
29 Fault code 29 on an Intergas boiler indicates that the control system has detected a problem with the gas valve relay.… Read more →
30 Fault code 30 on an Intergas boiler points to a problem with the gas valve relay. The relay is a small electrical… Read more →
4 Fault code 4 on an Intergas boiler indicates that the printed circuit board (PCB) has been unable to detect a flame… Read more →
5 Intergas fault code 5 tells you that the boiler's flame sensor is picking up a signal that is weaker than expected —… Read more →
6 Fault code 6 on an Intergas boiler indicates a flame detection problem. The boiler's PCB (printed circuit board) is… Read more →
8 Fault code 8 on an Intergas boiler signals that the PCB has detected the fan is not running at the speed it expects.… Read more →
9 Fault code 9 on an Intergas boiler signals that the burner controller — the electronic board responsible for managing… Read more →
F000 The F000 code tells you that the boiler's primary heat exchanger temperature sensor — known as S0 — has been detected… Read more →
F001 The F001 code means your Intergas boiler has detected that its temperature climbed dangerously high while trying to… Read more →
F002 The F002 code appears when your Intergas boiler detects that the water temperature inside the heat exchanger has… Read more →
F003 The F003 code appears when the boiler's flue gas temperature sensor detects that exhaust gases leaving the heat… Read more →
F004 The F004 code appears on Intergas boilers when the PCB (the boiler's control board) cannot detect a valid flame signal… Read more →
F005 The Intergas F005 fault code indicates that the boiler detected a weak or failing flame signal during operation. Unlike… Read more →
F006 The F006 code on an Intergas boiler indicates a 'flame simulation' fault. In plain terms, the boiler's PCB (printed… Read more →
F007 The F007 code appears on Intergas boilers — primarily the Xclusive and Xtreme ranges — when the boiler's control board… Read more →
F008 The F008 code appears on Intergas boilers (including the Xclusive and Xtreme ranges) when the PCB detects that the fan… Read more →
F009 The F009 fault code on Intergas boilers signals an internal fault within the burner controller — the electronic unit… Read more →
F010 The F010 fault code on Intergas boilers (including the Xtreme and Xclusive ranges) indicates a problem with the S0… Read more →
F011 The F011 code on an Intergas boiler indicates a fault with the S0 temperature sensor, which sits at the top left of the… Read more →
F012 The F012 fault code appears on Intergas Xclusive and Xtreme boilers when the PCB loses a valid signal from the S5… Read more →
F014 The F014 code tells you that the boiler's control board has detected a problem with the S0 temperature sensor — the… Read more →
F015 The F015 code on Intergas Xclusive and Xtreme boilers indicates that the PCB has detected a problem with the physical… Read more →
F016 The F016 code appears on Intergas Xclusive and Xtreme boilers when the burner controller detects a problem with the S3… Read more →
F018 The F018 code tells you that your Intergas boiler has detected a restriction or blockage in either the flue outlet or… Read more →
F019 F019 appears on Intergas Xclusive and Xtreme boilers when the PCB detects a problem with its onboard memory module,… Read more →
F027 The F027 code appears on Intergas Xtreme and Xclusive boilers when the PCB detects a problem with the S6 outside… Read more →
F028 The F028 code appears on Intergas Xclusive and Xtreme boilers when the PCB has detected an unexpected or repeated reset… Read more →
F029 The F029 fault code on Intergas boilers signals that the boiler's control system has detected a problem with the gas… Read more →
F030 The F030 code appears on Intergas Xtreme and Xclusive boilers when the control board detects a problem with the S3… Read more →
F031 The F031 code appears when your Intergas boiler's PCB detects a problem with the S1 sensor — the component responsible… Read more →