Low
LED 2 (B) on Ferroli Hawk II

Your boiler correctly detects that a hot water tap is currently running, so it is firing up to provide you with hot water.

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

Hot water tap open - D.H.W. flowmeter (136) contact closed

From this model's manual
Verified against the Ferroli Boiler Hawk Ii 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 fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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