418

Hi All, Looking for some advice please! Not sure if this could be a DIY Home fix or if I need to call an engineer. I have a Vaillant Ecotec Plus 418, which appears fine on the hot water side and is able to maintain temperature however when I call for heating, initially it seems to go for a...

I have a Vaillant 418 on a Y plan. I'll try to explain problem briefly -- I can't get it to do both water and rads at the same time. With the 3 port valve in mid position (d70=1), the boiler only uses the D77 setting of 7KW and so it doesn't have a high enough KW output to do both rads and...

I'm having the dreaded s53 problem and also s7. 418 ecotec plus (10yrs old) 15-50 pump External controls (pump boiler controlled) 2 zones (CH and HW) ABV After pump but before valves, back to return circuit Magnaflow 10 radiators (one is 2m long single, one is 1.9m high double 8kbtu, rest are...