RDJ10RF Boiler Thermostat

[Riperpiper]

I've had this remote control unit for two years ever since it was fitted with the new Vailliant boiler. It's always worked OK till now. Suddenly the receiver is now showing a red light instead of a green one and the transmitter just can't communicate with it. I've tried changing the batteries and resetting both the transmitter and the receiver but nothing seems to work. The only way I can control the boiler now is by pressing the over-ride button to turn it on. I'm baffled. Any help would be much appreciated.

 

[Blagard]

Try resetting it. I pinched the text below form another website.

1. Make sure the thermostat unit has its vertical switch set to 'run' and the horizontal switch set to 'auto'.
2. Loosen the screw holding the thermostat to the wall (situated underneath, just loosen the screw don't take it all the way out). take the unit to the boiler.
3. On the wall unit/receiving unit next to your boiler there are two buttons 'Set' and 'Reset'. press and hold the reset button for 4 secs until orange light starts to flash
4. Then press the 'Set' button on the same unit (the light should flash again.)
5. Press the 'Learn button on the back of the thermostat unit try to be a good meter away from the wall unit /boiler. the lights should flash and then turn green
6. Press the 'test' button on the back of the thermostat. This sends a test signal to the boiler . the green light should come on again. when this has happened press the test button again to switch off the test signal.
This should now work