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by Gaz70uk
Wed Nov 27, 2013 8:12 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Replace Siemens RAA20 Thermostat With 7 Day Programmable Timer/Thermostat
Replies: 2
Views: 4423

Re: Replace Siemens RAA20 Thermostat With 7 Day Programmable Timer/Thermostat

Hi Atticus, Thanks for replying. I still can't see anything obvious but there are a couple of bits of plastic on the bottom which look like they may be clipped into the backplate. So I think it might be those which release the cover. I haven't had a chance to try yet but I will give it a go at the w...
by Gaz70uk
Wed Nov 20, 2013 10:12 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Replace Siemens RAA20 Thermostat With 7 Day Programmable Timer/Thermostat
Replies: 2
Views: 4423

Replace Siemens RAA20 Thermostat With 7 Day Programmable Timer/Thermostat

I have a Siemens RAA20 room thermostat which I want to replace with a 7 day programmable timer/thermostat. All the installation instructions I've seen for the RAA20 say there are two screws on the bottom of the case to remove the cover. The one I have doesn't have any screws, but the cover is very f...
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