High
7 on Ariston Genus 27 BFFI Plus

Your boiler is shutting down repeatedly because it is overheating, which is usually caused by trapped air inside the system or a faulty temperature sensor.

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

Safety thermostat is triggered repeatedly. Faulty (contacts) ntc sensor-heating/hot water. Defective (poorly calibrated) safety thermostat. Presence of air in the primary water circuit

From this model's manual
Verified against the Ariston/Ariston Genus 27 Combi 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

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All 6 fault codes on the Genus 27 BFFI Plus

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

8A01A02A03A07

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