Low
F.574 on Viessmann Vitodens 200-W B2KE-19

Your boiler isn't receiving readings from its room thermostat or remote control, so it's running on a backup setting that may not keep your home as evenly heated as usual.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Monitor it

This is a minor fault. Keep an eye on it and mention it at your next annual boiler service. Reset the boiler and see if it clears.

What the manual says

Manufacturer manual

Control mode without room

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.

DIY fix possible

Check that the room thermostat or remote control has working batteries and its display is on.Make sure the thermostat is plugged in or wired to the boiler as intended, and that no connecting cable is loose or damaged.Switch the boiler off at its on/off switch, wait 30 seconds, switch it back on, and see whether the code clears.If the code returns, contact a Gas Safe registered engineer to check or replace the room thermostat or its wiring. Do not open the boiler casing yourself.

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Related fault codes

F.22View →F.23View →

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

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

F.7F.8F.9F.10F.11F.12F.13F.14F.15F.16F.29F.30F.49F.50F.57F.58F.59F.62F.63F.65F.67F.68F.69F.70F.71F.72F.73F.74F.77F.89F.91F.92F.93F.94F.100F.104F.142F.160F.161F.162F.163F.182F.183F.184F.185F.299F.342F.345F.346F.348F.349F.350F.351F.352F.353F.354F.355F.357F.359F.361F.365F.366F.367F.368F.369F.370F.372F.373F.375F.377F.378F.380F.381F.382F.383F.384F.385F.386F.387F.388F.395F.396F.399F.400F.401F.402F.403F.404F.405F.406F.408F.410F.416F.417F.418F.425F.426F.427F.428F.429F.430F.432F.433F.436F.437F.440F.441F.442F.443F.444F.445F.446F.447F.448F.449F.450F.451F.452F.453F.454F.455F.456F.457F.458F.461F.462F.463F.464F.467F.468F.471F.473F.474F.517F.527F.528F.530F.538F.539F.540F.542F.543F.544F.545F.546F.547F.575F.576F.577F.578F.579F.580F.581F.582F.666F.667F.668F.669F.670F.671F.672F.673F.682F.683F.684I.55I.56I.57I.59

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