Alpha fault codes, explained.
Find your code below — each guide covers what it means, likely causes, safe checks, and when to call a Gas Safe engineer.
Alpha code library (76)
0 Alpha Fault Code 0: Causes & Solutions 0A1 Alpha Fault Code 0A1: Causes & Solutions 0A2 Alpha Fault Code 0A2: Causes & Solutions 0A3 Alpha Fault Code 0A3: Causes & Solutions 0A5 Alpha Fault Code 0A5: Causes & Solutions 0A7 Alpha Fault Code 0A7: Causes & Solutions 0A8 Alpha Fault Code 0A8: Causes & Solutions 0A9 Alpha Fault Code 0A9: Causes & Solutions 0A15 Alpha Fault Code 0A15: Causes & Solutions 0A16 Alpha Fault Code 0A16: Causes & Solutions 0A17 Alpha Fault Code 0A17: Causes & Solutions 0A18 Alpha Fault Code 0A18: Causes & Solutions 0A21 Alpha Fault Code 0A21: Causes & Solutions 0A30 Alpha Fault Code 0A30: Causes & Solutions 0A31 Alpha Fault Code 0A31: Causes & Solutions 0A37 Alpha Fault Code 0A37: Causes & Solutions 0A43 Alpha Fault Code 0A43: Causes & Solutions 0A44 Alpha Fault Code 0A44: Causes & Solutions 0A80 Alpha Fault Code 0A80: Causes & Solutions 0E2 Alpha Fault Code 0E2: Causes & Solutions 0E13 Alpha Fault Code 0E13: Causes & Solutions 0E25 Alpha Fault Code 0E25: Causes & Solutions 0E33 Alpha Fault Code 0E33: Causes & Solutions 0E34 Alpha Fault Code 0E34: Causes & Solutions 0E37 Alpha Fault Code 0E37: Causes & Solutions 0E45 Alpha Fault Code 0E45: Causes & Solutions 0E46 Alpha Fault Code 0E46: Causes & Solutions 0E81 Alpha Fault Code 0E81: Causes & Solutions 0E98 Alpha Fault Code 0E98: Causes & Solutions 0E99 Alpha Fault Code 0E99: Causes & Solutions ALL THREE FLASHING Alpha Fault Code All three flashing: Causes & Solutions E1 Alpha Fault Code E1: Causes & Solutions E2 Alpha Fault Code E2: Causes & Solutions E3 Alpha Fault Code E3: Causes & Solutions E4 Alpha Fault Code E4: Causes & Solutions E5 Alpha Fault Code E5: Causes & Solutions E6 Alpha Fault Code E6: Causes & Solutions E7 Alpha Fault Code E7: Causes & Solutions E8 Alpha Fault Code E8: Causes & Solutions E10 Alpha Fault Code E10: Causes & Solutions E12 Alpha Fault Code E12: Causes & Solutions E15 Alpha Fault Code E15: Causes & Solutions E16 Alpha Fault Code E16: Causes & Solutions E20 Alpha Fault Code E20: Causes & Solutions E23 Alpha Fault Code E23: Causes & Solutions E24 Alpha Fault Code E24: Causes & Solutions E25 Alpha Fault Code E25: Causes & Solutions E27 Alpha Fault Code E27: Causes & Solutions E29 Alpha Fault Code E29: Causes & Solutions E31 Alpha Fault Code E31: Causes & Solutions E37 Alpha Fault Code E37: Causes & Solutions E38 Alpha Fault Code E38: Causes & Solutions E43 Alpha Fault Code E43: Causes & Solutions E44 Alpha Fault Code E44: Causes & Solutions E45 Alpha Fault Code E45: Causes & Solutions E46 Alpha Fault Code E46: Causes & Solutions E47 Alpha Fault Code E47: Causes & Solutions E49 Alpha Fault Code E49: Causes & Solutions E51 Alpha Fault Code E51: Causes & Solutions E60 Alpha Fault Code E60: Causes & Solutions E61 Alpha Fault Code E61: Causes & Solutions E70 Alpha Fault Code E70: Causes & Solutions E71 Alpha Fault Code E71: Causes & Solutions E75 Alpha Fault Code E75: Causes & Solutions E76 Alpha Fault Code E76: Causes & Solutions FE94 Alpha Fault Code FE94: Causes & Solutions FE95 Alpha Fault Code FE95: Causes & Solutions FE96 Alpha Fault Code FE96: Causes & Solutions FE97 Alpha Fault Code FE97: Causes & Solutions NO LIGHTS Alpha Fault Code No lights: Causes & Solutions RED A RED B ALTERNATING Alpha Fault Code Red A + Red B alternating: Causes & Solutions RED A YELLOW B FLASHING Alpha Fault Code Red A + Yellow B flashing: Causes & Solutions RED A YELLOW B Alpha Fault Code Red A + Yellow B: Causes & Solutions RED A B FLASHING Alpha Fault Code Red A/B flashing: Causes & Solutions RED A B ILLUMINATED Alpha Fault Code Red A/B illuminated: Causes & Solutions SR Alpha Fault Code SR: Causes & Solutions
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