What does the Vaillant F.61 fault code mean?

Your boiler has detected an electrical fault in the system that controls the gas supply, meaning it has safely shut itself down to prevent any unsafe operation.

How much does it cost to fix Vaillant error code F.61?

Typical repair cost for the Vaillant F.61 fault is £200-400 including labour.

Vaillant F.61 Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

Fault: Gas valve control system. Short circuit/short to earth in cable harness for the gas valve, gas valve defective (coils shorted to earth), electronics defective

Shared across the ecoTEC plus 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.

Engineer required

This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

Find a Gas Safe engineer

Search the official register →

Boiler cover options

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Related fault codes

F.62View →F.63View →F.64View →

All 72 fault codes on the ecoTEC plus 415 VU 156/6-5

Seeing a different code? Every code this model can display, in one place.

Your boiler has detected an electrical fault in the system that controls the gas supply, meaning it has safely shut itself down to prevent any unsafe operation.

What the manual says

Engineer required

Avoid the next call-out bill

Related fault codes

All 72 fault codes on the ecoTEC plus 415 VU 156/6-5

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