DIY Forum


Ultimate HandymanUltimate Handyman on Pinterest


DIY Forum/Home improvement advice forum




It is currently Thu Jan 17, 2019 3:01 am

Time zone: Europe/London



Post new topic Reply to topic  [ 1 post ] 
Author Message
PostPosted: Wed Dec 14, 2016 9:49 pm 
Newly registered Member

Joined: Fri Jul 10, 2009 11:32 am
Posts: 92
Has thanked: 12 times
Been thanked: 3 times
We have a Continental UH3 under floor heating wiring centre (which may be the same as the Heatmiser UH3, although I'm not 100% sure about that). It's got a 'sticky relay', which means that sometimes the heating doesn't work (although some 'percussive maintenance' clicks it into gear again). I checked with the supplier, and it's out of warranty (after just a year), and they want £120 to send me a new one. A bit of sleuthing shows up that the relays are Omron G2R-2 230VAC. You can get those from RS for about £4-5 each ( So long as you're happy to do a bit of fiddling about with a soldering iron, you can save yourself a hundred quid.

If you're wondering, the wiring centre is an almost entirely 230V (AC) device - there's no low voltage anywhere. The two relays turn on the boiler and manifold pump, or operate the valve. The relays are activated whenever any of the zones turns on. Electrically each zone has a diode and a resistor all sort of connected together to energise the coils. If you do decide to do any fixing, make sure it's all turned off first, and be careful!

Share on FacebookShare on TwitterShare on DiggShare on DeliciousShare on Google+
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 



Similar topics

Time zone: Europe/London

Who is online

Users browsing this forum: No registered users and 0 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Visit Solent plastics




News News Site map Site map SitemapIndex SitemapIndex RSS Feed RSS Feed Channel list Channel list
ultimatehandyman privacy policy



Powered by phpBB® Forum Software © phpBB Group