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Changed the battery on remote thermostat but the receiver appears to have given up the ghost - there no sign of activity or lights flashing etc
its a glowworm flexicom 24cx and the remote thermo is a siemens rdj10rf
OK first press test and learn buttons together on the room stat, then press reset on the receiver, if this does not work remove the batteries and turn off the power to the boiler system, for ten minutes turn on the power and with the room stat close to the receiver insert the batteries, they should now talk to each other again, if not it is broke and will need replacing, Rick
I've fixed it - I found a another blog on the website :
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 flash4. 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 green6. 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