Emergency
G30 on Biasi Parva 28S

Your boiler is currently configured for a specific type of bottled gas (Butane) rather than the standard mains gas supply, and it cannot safely operate in its current mode.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

What the manual says

Manufacturer manual

Butane (29 mbar)

From this model's manual
Verified against the Biasi Parva 28s installation & service manual, page 20.
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 emergency 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

G28View →G29View →

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