Medium
438 on Vokera Eclipse

Your boiler has lost the connection to the sensor that monitors your incoming cold water, meaning it cannot properly regulate the temperature of your hot water supply.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Cold water inlet sensor cable disconnected

From this model's manual
Verified against the Vokera Eclipse 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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