What does the Vaillant S.14 fault code mean?

Your boiler is operating normally and is currently in the process of starting up the burner to provide heat or hot water.

How much does it cost to fix Vaillant error code S.14?

Cost varies. Contact a Gas Safe registered engineer for a quote.

Vaillant S.14 Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

Burner ignited

From this model's manual

Verified against the Vaillant/Vaillant Ecotec Plus Pro 839592 05 2006 installation & service manual, page 43.

What causes this fault?

This is not actually a fault, but rather a status message indicating that the boiler has successfully lit the flame. It physically occurs when the gas valve opens and the spark electrode ignites the burner to begin a heating or hot water cycle. You are seeing this because the boiler is functioning exactly as it should during its normal startup sequence.

DIY fix possible

This fault may be fixable without an engineer. Check your manual first.

Find a Gas Safe engineer

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Boiler cover options

Avoid the next call-out bill

A cover plan would handle faults like S.14: no call-out fees, no surprise bills.

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Related fault codes

S.10View →S.11View →S.13View →

All 135 fault codes on the ecoTEC plus 612 R1 VU GB 126/3-5

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

35 96 con Connection D,11 D.0 D.1 D.2 D.3 D.4 D.5 D.7 D.8 D.9 D.10 D.12 D.13 D.17 D.18 D.20 D.22 D.23 D.25 D.27 D.28 D.30 D.33 D.34 D.35 D.40 D.41 D.44 D.47 D.50 D.51 D.60 D.61 D.64 D.65 D.67 D.68 D.69 D.70 D.71 D.72 D.75 D.76 D.77 D.78 D.80 D.81 D.82 D.83 D.84 D.90 D.91 D.93 D.96 D.97 F.0 F.1 F.10 F.11 F.13 F.20 F.22 F.23 F.24 F.25 F.27 F.28 F.29 F.32 F.49 F.61 F.62 F.63 F.64 F.65 F.67 F.70 F.71 F.72 F.73 F.74 F.75 F.76 F.77 F.78 F70 P.0 P.1 P.2 P.3 P.4 P.5 P.6 S. 2 S. 5 S.0 S.1 S.3 S.4 S.6 S.7 S.8 S.10 S.11 S.13 S.15 S.16 S.17 S.20 S.21 S.22 S.23 S.24 S.25 S.26 S.27 S.28 S.30 S.31 S.32 S.34 S.36 S.41 S.42 S.52 S.53 S.54 S.96 S.97 S.98

Your boiler is operating normally and is currently in the process of starting up the burner to provide heat or hot water.

What the manual says

What causes this fault?

DIY fix possible

Avoid the next call-out bill

Related fault codes

All 135 fault codes on the ecoTEC plus 612 R1 VU GB 126/3-5

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