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Heating engineer · Brussels and Wallonia
Boiler error codes
Is your boiler showing a code? Pick its brand: you'll see what it means and what you can safely do yourself. We'll take care of the rest.
VaillantVaillant gas boilers (ecoTEC and others) and turboMAG and atmoMAG water heaters19 codesBulexBulex Thema Condens boilers13 codesViessmannViessmann Vitodens 100-W (current generation, numeric codes)13 codesBuderusBuderus Logamax plus GB172 and GB172i14 codesRemehaRemeha Calenta Ace13 codesBosch / JunkersBosch gas boilers (Condens) and Junkers boilers (Cerapur, Cerasmart)18 codesDe DietrichDe Dietrich gas boilers (Naneo and others)13 codesWolfWolf gas boilers (CGB and others)13 codesChaffoteauxChaffoteaux gas boilers (Inoa, Inoa Green and others)12 codesOertliOertli oil boilers (OEcOil Condens and others)10 codesRielloRiello oil burners2 codes
First steps
- Write down the code shown: it saves us time.
- Check the pressure gauge.
- Check that the gas tap is open.
- Reset once. If the code comes back, call us.
Practical guides: Top up the pressure · Bleed a radiator · Reset the boiler
A breakdown, a question? Get in touch.
Call us or message us on WhatsApp. Or leave your number, with a photo of the boiler if you like: we'll call you back.
