Common problems guide

The most common Viessmann Vitodens 200-W B2HH-19 problems

The faults most likely to send a Viessmann Vitodens 200-W B2HH-19 into lockout — with plain-English causes, what to check first, estimated repair costs and whether you need a Gas Safe engineer.

12 documented codes
6 most common
0 DIY-safe checks
6 engineer needed

The 6 most common faults

01
F.416 High Engineer

Your boiler has shut itself down because its burner is not igniting properly, which is often caused by a sensor being out of position or air trapped in the gas supply, so it needs a Gas Safe engineer to check it.

Est. cost
£120-300
Parts
Flue gas temperature sensor, Flue gas sensor clip or bracket, Gas valve
Full guide for F.416
02
F.59 High Engineer

Your boiler's ventilation fan isn't starting up, so it has stopped itself as a safety precaution, and it will need a qualified engineer to check it.

Est. cost
£200-400
Parts
Fan assembly, Fan connection cable or harness, Mains power cable to fan
Full guide for F.59
03
F.457 High Engineer

Your boiler's fan isn't starting, so it can't safely run the heating or hot water until a qualified engineer checks it.

Est. cost
£200-400
Parts
Fan assembly, Fan power and connection cable, Main control PCB
Full guide for F.457
04
F.359 High Engineer

Your boiler is failing to light its burner, so it has stopped producing heat and hot water until a qualified engineer checks it.

Est. cost
£150-400
Parts
Ignition module or burner control unit, Ignition electrode, Ionisation (flame sensor) electrode
Full guide for F.359
05
F.357 High Engineer

Your boiler has stopped because it isn't getting the gas pressure it needs to light safely, so it isn't providing heating or hot water until a qualified engineer checks the gas supply.

Est. cost
£90-250
Parts
Gas valve (gas block), Gas pressure switch, Gas filter
Full guide for F.357
06
F.369 High Engineer

The boiler has stopped because its flame sensor is not picking up a steady flame when it lights, so it has shut itself down as a safety measure.

Est. cost
£120-250
Parts
Ionisation electrode, Burner gauze assembly gasket, Combustion chamber door gasket
Full guide for F.369
Parts most often replaced

on the Viessmann Vitodens 200-W B2HH-19

Flue gas temperature sensorFlue gas sensor clip or bracketGas valveGas filterFan assemblyFan connection cable or harness

Based on parts cited in our fault code database. Your engineer will confirm what's actually needed after diagnosis.

Call a Gas Safe engineer if…

  • You can smell gas or see signs of a leak
  • The Viessmann shows an Emergency or High severity code
  • The boiler keeps locking out after repeated resets
  • You've tried the DIY checks and the fault hasn't cleared
  • There's visible water leaking from the boiler
  • The flame is yellow or orange instead of blue
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See the full 12-code list for the Viessmann Vitodens 200-W B2HH-19

Related guides

Boiler losing pressure → No hot water → When to replace → Symptom checker →