BoilerFaultCodesWhat the manual says
Manufacturer manualLack of communication with the remote connected to zone 2.
Shared across the Inovia 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.
DIY fix possible
Check if the batteries in your Zone 2 room thermostat need replacingEnsure the remote control or thermostat is within range of the boilerCheck for any wireless interference from other electronic devices near the receiver
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All 47 fault codes on the Inovia 2020
Seeing a different code? Every code this model can display, in one place.