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Answered in 2 minutes by:
10/18/2015
Andrew Smith, Engineer
Category: UK Plumbing
Satisfied Customers: 4,029
Experience: Domestic Gas, Commercial Gas, LPG, Unvented Hot Water, Part P Electrical, Commercial Catering
VerifiedS30 means it is in standby - no demand.
Sounds like a room stat problem, can you place the transmitter near the receiver and see if you can get them to resync?
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