What does the Viessmann CE fault code mean?

Your boiler's main controls have lost contact with an add-on part that helps run your heating, so it may not be working as it should, but this is usually fixable and is not a gas safety emergency.

How much does it cost to fix Viessmann error code CE?

Typical repair cost for the Viessmann CE fault is £120-260 including labour.

Viessmann CE Fault Code: What It Means & How to Fix It

What the manual says

Manufacturer manual

Control mode - Communication fault - ext. extension

From this model's manual

Verified against the Viessmann/Viessmann Vitodens 343 F Ws4a 5592883 installation & service manual.

DIY fix possible

Turn off the boiler at its on/off switch and at the fused spur or isolator supplying it, then wait 2 minutes.Turn the power back on and wait several minutes for the boiler to restart and check its display again.Check the thermostat or controller is set correctly and that the boiler is in the right mode, then contact a Gas Safe engineer if the CE code returns. Do not open the boiler casing.

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Boiler cover options

Avoid the next call-out bill

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

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All 59 fault codes on the Vitodens 343-F WS4A

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

0F 9A 9b 9C 9F 10 18 20 28 30 38 40 48 50 58 92 93 94 A6 A7 b0 b1 b4 b5 b7 b8 bA bC bd bE bF C2 Cd CF dA db dd dE E4 E5 E8 E9 EA Eb EC Ed F0 F1 F2 F3 F4 F8 F9 FA FC Fd FE FF

Your boiler's main controls have lost contact with an add-on part that helps run your heating, so it may not be working as it should, but this is usually fixable and is not a gas safety emergency.

What the manual says

DIY fix possible

Avoid the next call-out bill

All 59 fault codes on the Vitodens 343-F WS4A

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