HT asked ... Radio code Philips 22RC200/35?    |    Roberta asked ... DW5080?    |    Dave asked ... Toilet Push Button not flushing properly?    |    Dave asked ... Repair kettle lid?    |    Sandy asked ... Replace vertical gear on Singer Fashion Mate 252?    |    Click here to ask your question

Vaillant boiler crash bang whallop every time it lights up?

There is a loud noise every time Vaillant boiler fires up. Had two diverter valves already and drained system. Can you help
Ron, January 2010
link Click here to see other fixes for Vaillant.