What does the Viessmann 59:1 to 59:10 fault code mean?

Your boiler has detected a minor internal setting inconsistency regarding when it should start heating, but it is unlikely to stop your hot water or heating from working.

How much does it cost to fix Viessmann error code 59:1 to 59:10?

Typical repair cost for the Viessmann 59:1 to 59:10 fault is £80-120 including labour.

Viessmann 59:1 to 59:10 Fault Code: What It Means & How to Fix It

Technical description

Starting point adjustable from 1 to 10K below the set value

What causes this fault?

This fault occurs when the boiler's control system identifies a mismatch in its internal operational settings, specifically regarding the temperature drop allowed before it fires up again. It is typically caused by a minor electronic glitch within the main control board or a slight calibration error in the temperature sensors. While the boiler continues to function, it is highlighting that its internal logic for managing heat cycles is slightly out of sync.

DIY fix possible

Press the 'Reset' button on the control panelTurn the boiler off and back on at the fused spur switchMonitor the display to see if the code clears after a restart

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Your boiler has detected a minor internal setting inconsistency regarding when it should start heating, but it is unlikely to stop your hot water or heating from working.

Technical description

What causes this fault?

DIY fix possible

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