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2 08 on Ariston Genus HE

Your boiler has detected that the solar collector on your roof is at risk of freezing and is running its protection cycle to prevent damage.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Collector frost protection temperature

Shared across the Genus HE range
This code is shared by the boilers in this range, which use the same control board. It may not be printed in this exact variant’s manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check that the solar fluid levels are adequate in the system gaugeEnsure the solar pump station is powered onMonitor the display; this code usually clears automatically once the fluid has circulated or the temperature rises

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Related fault codes

2 01View →2 07View →2 04View →

All 41 fault codes on the Genus HE

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

1 011 021 031 041 051 061 071 081 101 121 141 161 181 P11 P21 P32 012 022 042 073 013 023 033 043 053 063 074 075 015 025 046 046 107 017 027 037 047 057 067 07

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