Low
2 08 on Ariston Clas System 28

Your boiler has detected that the solar water panels on your roof are reaching freezing temperatures and has triggered a safety feature to prevent them from icing up.

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

Intervento antigelo collettore solare

From this model's manual
Verified against the Ariston Clas System 28 installation & service manual, page 33.
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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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