installed a baxi luna 310 fi combi boiler worked great for 7 months then
developed a problem with the DHW only getting up to 100 deg F
did the usual strip down the 3 way mixing valve, check o rings and
diaphrams, all seemed to be in excellent condition, stripped down the many
pipes inside the boiler and made sure there was no dirt or debris, checked
the wiring switched sensors around betwen the domestic and the heating
still nothing changed the PC board as last resort nothing
anyone ever worked on these that may have an idea that i may of overlooked?