DT10RF troubleshooting

24 Feb 2008
Reaction score
United Kingdom
The DT10RF receiver on my 25Si Greenstar boiler is playing silly buggers.
I was finding the heating coming on in the middle of the night when it wasn't timed to come on.
I tried to reduce this happening by switching the receiver to OFF before bed. However, the heating still comes on even though the receiver is saying it's OFF.
Advice please?!
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Is there a frost stat in the control system ? If the location of the frost stat gets close to freezing ( typically set at about 4°C ) then this will cause the boiler to fire up and protect the system from freezing
Hi. Many thanks for your helpful question. Much appreciated. The problem actually started in the summer when it was warm so i don't think it can be related to the frost stat.(I've just read through the manual and it's set at 7%) and up until recently it hasn't been that cold. Do you have any suggestions as to what it might be?

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