Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Install the app
How to install the app on iOS

Follow along with the video below to see how to install our site as a web app on your home screen.

Note: This feature may not be available in some browsers.

0 is boiler has no demand. Icos is a heat only boiler not a combi. If display does not change to c then boiler is not getting a demand. Faulty external controls. Get someone in to check. A better picture would help
 
That silver vessel on the cylinder looks like its full of water & hanging onto the wall for dear life!
 
image.jpgimage.jpg
0 is boiler has no demand. Icos is a heat only boiler not a combi. If display does not change to c then boiler is not getting a demand. Faulty external controls. Get someone in to check. A better picture would help

It's a Honeywell programmer
Gassafe the vessel isn't full, had this one installed on Thursday as old one was faulty and full of water. I am going to be replacing the wood it is attached to tomorrow when I can get some from work
 
It's the honeywell control known for relay faults when green light comes on does it click if not phone them they have 5 year warranty on these due to this fault. Done a few. Unusual for both to go though
 
It's the honeywell control known for relay faults when green light comes on does it click if not phone them they have 5 year warranty on these due to this fault. Done a few. Unusual for both to go though hu
 
It's the honeywell control known for relay faults when green light comes on does it click if not phone them they have 5 year warranty on these due to this fault. Done a few. Unusual for both to go though hu

It does still click if I turn the setting to off then on again but may still call them in the morning although I have a feeling I would be outside the 5 year warranty
 

Official Sponsors of Plumbers Talk

Similar plumbing topics

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.