Recent content by Special

Hi there awowen, I think your on to it. I have had look at the diagram fro the Mk2 and although mine is a mark one I think it is very similar. My wife has medical appointment this week but will get back to boiler asap and check. I can't help but think you have the answer though

Thanks Oilhead I will have a look for the diagram, maybe I've done something wrong tracing the capilaries. Are you saying (i'm new to oil fired) that the water will always be very hot from a standard grant boler

sorry for late reply Terrywookfit thanks, i cant see the 2.5 but difficult to access as previous owner has built boiler into the kitchen units/worktop. I think you are correct though. 2.5 would be the psi release pressure i assume? oilhead ; thank you but the thermocouple capillary...

I've tried turning down the conical adjuster that has the thermocouple attached to it only to fin it is closed. Opening it slightly and i hear water start to run, so I have closed it again Anyone any ideas, the boiler is still producing very hot water that the control thermostat can not seem...

Thanks for the quick reply. Primary store thermostat, if we are talking about the same thing it is connected to a 15mm pipe on one end only and has an adjuster on the top that I am fearful of turning because everything else starts to leak as soon as I do. The adjuster is conical and red ...

Hello I have an original (may be Mark1) Grant Combi 90 oil fired boiler that is overheating my hot water and central heating. Recently I have changed the Auto bleed valve, the tank filler loop non return valve, the vessel and the thermostat. Just to repeat I have changed the control...