Thanks for your help Ian.
The potentiometer didn't solve it so I called Ravenheat tech support and after explaining the situation was advised to fit a room stat.
I have now done this and although the boiler still cycles the time is greatly reduced. Also the boiler and pump shut down for periods.
Hi Agile,
Thanks for the rapid reply.
I didn't see any adjustment being made when PCB was fitted. Looking at the old PCB, there only appears to be one adjustment point which I think is a potentiometer. I have spoken to 2 GSEs and only one mentioned removing a jumper( whatever that is). The...
Hi,
I have a Ravenheat White Star LS100 about 15 years old. No room stat but TRVs.
Recently it would not fire and the PCB was replaced and a boiler leak fixed. The boiler now runs for 10/15 minutes then starts cycling 30 seconds on/off.
I have tried adjusting the rads and the pump speed to no...