Viessmann Error Code F.367: Gas valve supply does not switch off (Boiler)

Updated October 16, 2026 · by Aurora Star Tech Inc.

Viessmann error code F.367 on a boiler means: Gas valve supply does not switch off. It is also called Viessmann diagnostic code F.367.

Critical severityBoilerVitodens 200-W B2HE

Homeowner? What Viessmann code F.367 means for you

Stop and call Your boiler is reporting: Gas valve supply does not switch off. This code is a safety shutdown. Turn the boiler off and call a licensed technician. Do not keep resetting it. If you smell gas, leave the house and call your gas utility or 911 from outside.

Safe things you can check yourself

Check the thermostat: right mode (Heat or Cool), set a few degrees past room temperature, and fresh batteries if it uses them.
Make sure the unit has power: its on/off switch (often looks like a light switch near the unit) is ON and the breaker in the electrical panel is not tripped.

Call (647) 657-2977 Book a service call

Licensed technicians serving Vaughan, Toronto and the GTA.

What does Viessmann error code F.367 mean?

Burner in a fault state.

Applies to: Vitodens 200-W B2HE 85, 120, 150, 199

Common causes of Viessmann code F.367

Faulty BCU

Safety: Gas, electrical and refrigerant work must be done by a licensed technician. Turn off power and gas before servicing, never bypass a safety control, and always follow the manufacturer's manual for your exact model.

Viessmann models that use code F.367

B2HE-85 B2HE-120 B2HE-150 B2HE-199

Other Viessmann Boiler codes

Code	Meaning
F.354	Gas modulation valve tolerance outside range
F.355	Analogue signal reference check: flame signal at start
F.357	Insufficient gas supply
F.359	No ignition spark
F.361	No or weak flame signal at burner start
F.366	Gas valve supply does not switch off
F.369	Flame loss right after ignition (safety time)
F.370	Fuel or modulation valve will not close
F.372	Repeated flame loss during calibration
F.373	Heat transfer too low during calibration
F.377	Ionization post-adjustment conditions not met
F.378	Flame loss during stabilization or operation

All Viessmann Boiler error codes →

Viessmann code F.367: homeowner questions

What does Viessmann code F.367 mean?

Gas valve supply does not switch off. Burner in a fault state.

Is it safe to keep using my boiler with code F.367?

No. Code F.367 is a safety shutdown, so keep the boiler off until a licensed technician has checked it.

Can I reset Viessmann code F.367 myself?

Do not keep resetting it. Repeated resets can hide a safety problem; a licensed technician needs to find the cause.

Who can fix Viessmann code F.367 near me?

Aurora Star Tech Inc. repairs Viessmann boilers in Vaughan, Toronto and across the GTA. Call (647) 657-2977 or book a service call online.

Homeowner help: Boiler Not Heating: What to Check

Troubleshooting guides

Condensing/corrosion of conventional boiler All brands · Boiler
No heat or some zones cold All brands · Boiler
Noise All brands · Boiler
Poor heat / circulation All brands · Boiler
Relief valve weeps every cycle / pressure climbs All brands · Boiler
Short cycling / wasted fuel All brands · Boiler
Symptoms of air in system All brands · Boiler
Uneven heating All brands · Boiler
Won't fire All brands · Boiler
Acknowledged fault comes back Viessmann · Boiler
Actuator test: drive fan, burner, pump and 3-way valve by hand Viessmann · Boiler
Clear the service message (P.1 / P.8) Viessmann · Boiler
Condensate not draining, burner shuts down Viessmann · Boiler
Filling and purging programs (20 min auto-stop) Viessmann · Boiler
Lag boilers lose contact with lead boiler (cascade) Viessmann · Boiler
Open the Service menu (password viservice) Viessmann · Boiler
Where the fault history lives Viessmann · Boiler

Source: Viessmann Vitodens 200-W B2HE 85/120/150/199 Service Instructions 6167 813-24 (09/2026), Fault messages, p.62-73. Written in our own words as a summary; always check the original manual.

General guidance for qualified technicians. The manufacturer's installation and service manual and local codes always take priority. Aurora Star Tech is not affiliated with, endorsed by or sponsored by any equipment manufacturer; brand and model names are used only to identify equipment and belong to their owners.