How much does it cost to fix Vokera error code 50-59?

Typical repair cost for the Vokera 50-59 fault is £0-120 including labour.

50-59 Medium

Vokera 50-59 Fault Code

Q: What does the Vokera 50-59 fault code mean?

Your boiler has detected an internal communication glitch or a temporary system error and is attempting to reset itself.

Also written as 5059 — same fault.

The Vokera 50-59 fault code means: your boiler has detected an internal communication glitch or a temporary system error and is attempting to reset itself.. It appears on 3 Vokera models in our database.

Technical description: Temporary fault code (Refer to section 7.10)

What causes the Vokera 50-59 fault?

This fault occurs when the boiler's internal computer experiences a brief communication delay or a 'software hiccup' between its electronic components. It is usually caused by a momentary fluctuation in the electrical supply or a temporary glitch in the main control board's processing cycle. The boiler displays these numbers while it pauses to perform an automatic self-check and reboot sequence.

Typical repair cost £0-120 (including labour)

DIY fix possible

Observe the boiler to see if it clears the code automaticallyPress the reset button or turn the mode selector to 'OFF/RESET' for 5 secondsIf the fault persists or recurs frequently, contact a Gas Safe engineer to inspect the PCB

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Vokera models that show the 50-59 fault code

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

Source

Vokera 50-59 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