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Thermostat to Combi

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14 Jun 2025
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I have this thermostat and I'm looking to take out the previous wireless one from my combi boiler worcester bosch. Can someone help me wire up from this to the terminals on the boiler marked as LR LS NR. I have a three core cable in at the minute.

Appreciate if anyone could help me
 
Last edited:
I’m sure you’re supposed to have LR at the boiler too.

I would say LS to 1, place a link between 3 and 5, and NS to 6.
 

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