Recent content by Garethcase

Help! Just got back from hols and house stone sold. Vaillant ecomax 600 (8 years old) goes through status codes S1, S2, S3 then to S4 for about a second, then "Phut" the boiler goes out just as it sounds like the main burner should come on. Back to S3 and the cycle repeats itself every 25...