Worcester Bosch Greenstar 8000 Life intermittent CH faults - generally not working

[chriskk]

New boiler. Hot water fine. CH nightmare. Has only worked to programme request 8 times in month plus (4 days). Engineer has changed programmer twice, diverter, hot water and ano valve twice, called in Worcester who said electrical or possible blockage (as running out of ideas). Then electrician checked electrics Ok. Engineer then to rewire boiler side (not yet done). So have tried all kinds things....... first time in v long time four day/night cycles CH worked as programmed last week. Last 3 days back to square 1..... have tried to manually override - CH came on for c half hr this evening, temp on boiler drops while solid rad icon on and flame disappears....... Doesn't come back on. Pressure within recommended range. Have been keeping a log for past while. Issue going on for c 3 months! Literally driving round bend atm. Any thoughts/suggestions please. Thank you

 

[ianmcd]

well sorry but it is still under warranty so get WB back out

 

[chriskk]

Thank you Ian. Worcester implying that may not have had blockages at times boiler working but implied May still be cause and sort with engineer. Help!