High
E05 on Biasi Antares System

Your boiler has stopped working because the fan that helps remove waste gases is not spinning at the correct speed.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

What the manual says

Manufacturer manual

Fan speed failure fault

From this model's manual
Verified against the Biasi/Biasi Antares System installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

Engineer required

This is a high severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Related fault codes

E04View →E15View →E16View →

All 96 fault codes on the Antares System

Seeing a different code? Every code this model can display, in one place.

1 +2 +3 +4 +5 +6 +7 +8 +1010 +11 +1212 +1313 +1414 +1515 +1616 +1818 +1919 +2020 +2121 +22 +2323 +2424 +2525 +2626 +4040 +4242 +44 +5050 +6262 +6565 +6868 +77 +7878 +7979 +8989 +9191 +9696 +9799E01E02E03E04E06E07E08E10E11E14E15E16E20E21E22E24E65E68E77E78E79E89E91E96E96+E97E99Keys faultL1Lock statemax err .

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