Vaillant Boiler Fault Codes

Vaillant fault codes on this site

We document 4,072 fault codes across 64 Vaillant models, covering 374 distinct codes. Vaillant boilers use letter-and-number codes such as F.00, F.01, F.10. Codes for 56 of these models are taken directly from the manufacturer's own service or installation manual.

Models covered: Turbomax Plus 824/828E, ecoTEC plus VU GB 656/4-5 A, ecoTEC plus, ecoMAX, ecoTEC exclusive, ecoTEC pro, Thermocompact, Turbomax Pro 28 2E, Turbomax VUW 242/1, ecoFIT Pure 825, ecoFIT Pure 830, ecoFIT Pure 835, ecoFIT Pure 412, ecoFIT Pure 418, ecoFIT Pure 425, ecoFIT Pure 435, ecoTEC sustain, ecoMAX 613, ecoMAX 618, ecoMAX 622, ecoMAX 635, ecoMAX Pro 28E, ecoMAX 824E, ecoMAX 828E, Turbomax Plus VUW 242E, Turbomax Plus 828 E, Turbomax Plus VUW 242EH, Turbomax Plus 828, Turbomax 824/828, Turbomax VU 182, Turbomax VU 242, Turbomax VU 282, Combi Compact 242EB, Combi Compact 282EB, Ecomax Condensing 600/800 series, Home Combi 25, Ecomax Pro 18E / 28E, Turbomax Plus, Turbomax 242/282 1E, ecoFIT pure 612, ecoFIT pure 615, ecoFIT pure 618, ecoFIT pure 630, ecoFIT sustain 825, ecoFIT sustain 830, ecoFIT sustain 835, ecoFIT sustain 415, ecoFIT sustain 418, ecoFIT sustain 430, ecoFIT sustain 615, ecoFIT sustain 618, ecoFIT sustain 630, Combicompact vcw282eh, ecoMAX 824/2 E, ecoMAX 828/2 E, ecoMAX 835 E, Home Combi 30, Home Combi 35, Combicompact VCW 221 H, Combicompact VCW 240 H, Home Regular 12, VCW 20/1 T3W, VCW 25/1 T3W, VCW-sine 18 T3W.