Search results

  1. M

    Hot Water only works when CH is on

    I have a potterton promax boiler in and s configuration with 2 - Zone valves. One for the Central Heating (ch) and one for the Hot Water (hw). When I switch the hot water on, the boiler does not start. The boiler Diagnostics identifies that the Flow Switch is not operating. If I switch on the...
Back
Top