Emergency
F.367 on Viessmann Vitodens 200-W B2KE-19

The boiler's gas shut-off valve is not closing when it should, which is a safety issue, so turn the boiler off and have a Gas Safe registered engineer check it as soon as possible.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

What the manual says

Manufacturer manual

Burner in a fault state. Gas valve electricity supply does not turn off. Replace the BCU burner control unit.

From this model's manual
Verified against the Viessmann/Viessmann Vitodens 100 W Wb1a installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the 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.

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Related fault codes

All 170 fault codes on the Vitodens 200-W B2KE-19

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

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