ICOS/Ideal HE18 Hot Water but No Heating

[David Ward]

Right then. Joined Terms 1 & 3 together. It all just kicks into life. Rads are starting to warm up.
From this I take it that it was my stat that was knackered and that I'll have to control it manually or by timer until I can get a new one.
Are they repairable or will it need replacing?

 

[Echo the husky]

Yes, stat faulty. It's probably the dropper capacitor that powers the receivers circuit loosing capacitance as they do with age. The easiest option is to replace the whole lot with a new stat. Either the same or something else. Not Salus.

 

[David Ward]

Thank you Echo the Husky and Gas2Air for your time, expertise and for the effort with dealing with a non-plumber/heating engineer.
And thank you for saving me a bundle of cash because if I'd followed the advice from what has been posted on other sites I would have unnecessarily replaced the 3-way valve first.
I now have heat in the whole house.

 

[dilalio]

These tests were done with the water off at the programmer - but get same results with it on.

What make and model programmer and wireless roomstat do you have? Fault could be with programmer if you get same readings at different settings!

No thanks for me then

 

[David Ward]

And thanks to Dilalio too..... sorry

 

[dilalio]