remote control and boiler both seem to be working but not sync. with each other. e.g when the temperature cools in the house, the remote shows a flame asking the boiler to switch on but nothing is happening.
With what you've described, there can be a ton of reasons why it's not working. Could be weak batteries (if so equipped). Could be a defective transmitter, or the boiler could be experiencing OTHER problems. Could be a bad control board, could be failed ignition, could be a sticking gas valve (assuming it's gas, if oil, could be a clogged filter or line). You say everything appears to be working but the boiler is not coming on. How do you know the boiler is working if nothing is coming on? Are you SURE the boiler is working properly? My advice is to have a professional look at it and diagnose the problems. But only after IF your controller is battery powered you try replacing the batteries with fresh ones. My garage door opener remote works from all the way out at the street. But when the battery gets weak the door doesn't open unless I'm a few feet away. All goes to power and transmission. So you might just need new batteries in the thermostat. But you don't say if it's battery powered, so I can only guess. Hope this helps. 'av'a g'day mate. )