Ok so I have checked and I have a Drayton mid position actuator, MA1.
Switched hot water to off last night and thermostat to 0. This morning nothing came on. Moved the hot water to on and the boiler fired up. Moved room stat to 20, still no heating. But after a while it seemed the upstairs...
Stardanny. Its a Stelrad bolier (quite old but fine) The hot water side is working fine it would seem. Havent had reason to question this side of the system. No idea about ports in the airing cupboard I'm afraid. is this crucial to a diagnosis. How can I tell the difference
I am totally perplexed on this one and hope somebody can help
I have a pretty standard pumped heating system. I have a programmer, room stat and gas boiler. The heating is set to timed, for on a 7.00am and off later in the day. The system has been fine set to off all summer, hot water working...