Recent content by dumbledad

Darn it. Following all the help here (thanks folks) I diagnosed that the programmer was broken and so I got a new one off Amazon and installed it. Perfect - the heating clicked off at bed-time just as programmed. Then a week later it has stopped working. Same fault. Am I unlucky and two...

I'm no expert, so no, I am not sure. I was reading that from here: Back to the programmer. I switched both the CH and HW to off. Then removed the programmer from the backplate. L and 2 (and L and 1) are low, but L and 4 (and L and 3) have no connectivity. (It's reversed from the wall plate...

I tried taking the programmer away from the backplate. Once unclipped the room thermostat cannot bring the boiler on. Does that mean it is a fault with my programmer? When I unclipped it the sticker inside showed its warranty ending in 2012

I'll try that. In the meantime you're right to ask about other work. It may indeed coincide with having the radiators flushed through (they were full of sludge). It is a combination boiler (old but faithful Baxi WM 51 / 3RS) and the hot water tank has a Danfoss ATC thermostat on it. The green...

Thanks Ollski, it would have been great if it was that simple. I tried knocking five minutes off the time set on the Danfoss programmer but it had no effect. The room thermostat still takes priority

My central heating and hot water is governed by a Danfoss FP715 Si. Using this I can set the time each day when the central heating and the hot water come on and off. When the central heating is on it is further governed by a Honeywell DT92E wireless room thermostat in the living room. This was...