My central heating programmer decided to stop working today. Changed the fuse and it just blew again inside the programmer. I need to replace it so had a quick look in the Screwfix catalogue and not sure what I need as there are 2,3,4 and 5 wired ones. Mine has 4 wires (+, - and 2 others) so do I get a 2 or 4 wire one?

 

Here's a pic of my old one and the wiring if anyone can point me in the right direction on a replacement :)

 

Cheers

 

Vijay

it looks like a hortsman 2 channel programmer to me, but honeywell do one like it and you can use either they wire in the same

Hello bud,

 

Should have mentioned, the one in the picture is a Landis & Gyr RWB200.

 

Just looking in the Screwfix catalogue for 2 wired one:

 

http://www.screwfix.com/search.do;jsessionid=TWEEE5GFPWPIECSTHZOSFFA?_dyncharset=UTF-8&fh_search=88114

 

http://www.screwfix.com/search.do;jsessionid=TWEEE5GFPWPIECSTHZOSFFA?_dyncharset=UTF-8&fh_search=88608

 

http://www.screwfix.com/search.do;jsessionid=TWEEE5GFPWPIECSTHZOSFFA?_dyncharset=UTF-8&fh_search=86588

 

And this one doesn't say how many wires - http://www.screwfix.com/search.do;jsessionid=TWEEE5GFPWPIECSTHZOSFFA?_dyncharset=UTF-8&fh_search=65118

 

Any idea where I can pick them up cheaper?

 

Vijay

ok you have shown time clocks that only do heating or hot water and some do both what did your time clock do, cause to me the wiring looks like a 2 channel E.G it does heating and hot water

yep, heating and hot water

the last one is a 2 wire 2 channel and is what you want (for you cheapest option)

The siemens RBW29?

this one mate

http://www.screwfix.com/search.do;jsessionid=TWEEE5GFPWPIECSTHZOSFFA?_dyncharset=UTF-8&fh_search=65118

thanks mate, really appreciate your help :)

bills in the post:whistling:

no probs

as long as it's not London prices ;)

 

Just got a new one from Ebay for £27.50 :)

Just wanted to say thanks again, new programmer arrived yesterday and my heating is working again :)

great:gunsmilie: