c 55 Low

Vokera c 55 Fault Code

Also written as C55 — same fault.

The Vokera c 55 fault code means: your boiler is currently operating normally in heating mode, and the code is simply displaying the current temperature of the water being sent to your radiators.. It appears on 1 Vokera model in our database.

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.

Technical description: Heating mode is switched ON (number indicates the central heating operating temperature)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Vokera models that show the c 55 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Vokera c 55 fault code information on this page is sourced and cross-checked against the official Vokera service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026