Will any wireless room stat work with any receiver?
Check there is nothing wrong with receiver,as it may not be the room-stat,if you have changed battery they may need to be paired up again.Drayton RF or RF2 may work with the receiver.Go to site below,click on ‘room-stats’,a list of stats will appear giving you the equivalent Sunvic type to Drayton type. One for sale on e-bay.