Hi,
The living room and bedroom no 2 radiators will not heat up in our apartment. There is hot water in the pipe up until the lock shield valve. There is a very slight warmth along the top of the drain valve section between the lockshield valve and the radiator but no real heat in the radiator...
Hi again. Thanks for the info. Just to update, I have included a few photos. The actuator is the problem. When we arrive in the apartment I put the Horstmann time clock to 24HRS, the boiler fires up and usually the radiators stay cold until I move the lever on the Danfoss HPA2 actuator to...
Thanks for the replies. I thought I had a photo but I can't find it. I'm 99% sure its a Danfoss 2 port valve ( White plastic head unit with chrome lever). The white head unit also gets quite warm until I manually open the valve using the lever. Then it cools and the radiators warm up. Cheers
Hi, I'm new on here and just looking some advice. We occasionally stay in a relative's apartment. The gas boiler fires up and twenty minutes later the radiators are still stone cold. In the hot cupboard a pipe is roasting below a motorised valve and lukewarm above it. I moved the lever to manual...