Recent content by robwop

hi Tony Yes you are right it is the M90 32S the central heating potentiometer has been turned to the minimum position. The good news is that since replacing the ch temp sensor 2 days ago it has been working fine. The old temp sensor was about 9k from cold dropping to about 7k when heated...

hi Tony Boiler has been recommissioned with dip switches towards back of the boiler but this has'nt changed the cycling problem. the pcb is now showing the ch thermister to be faulty but this has been tested and seems to be working fine. It will be replaced do you think this could be what is...

hi Tony firstly sorry but didn't know which site was best and first time using them what you suggest sounds like it could be the problem as since commissioning the boiler the system has had quite a large extra radiator added to it which has coincided with the problem occurring will give it a...

sorry what i meant was makes no difference how high or low temp knob set at still comes on and off every 30 seconds

yes temperature knob turned to max

hi wondering if anyone can help have a biasi riva 32 combi hot water works fine. When the central heating comes on the rads get hot (but not boiling hot) temperature reaches about 70 degrees on the boiler temp gauge and the boiler keeps switching on and off any ideas would be gratefully received...