4 hours ago Jo asked ... How to engage clutch on old sewing machine to engage needle?    |    Jacky asked ... Miele Vacuum cleaner?    |    Ben asked ... Toyota Yaris French or Japanese?    |    Andy asked ... How can I mend my MacAlistair 450w hedge trimmer?    |    Felix asked ... Hitachi vt-m70em?    |    Click here to ask your question

Halstead Ace combi?

water wont heat up on water only but will heat up on water and heating
Brian, September 2009
most likely diaphragm is worn in the diverter valve, so won't be operating flow switch to turn boiler on when tap runs.

Ian, September 2009
link Click here to see other fixes for Halstead Ace.