by sparx »
Sun May 29, 2011 8:49 am
Not sure how long you've had wireless system but is the battery good in the thermostat?
If turned up/down most wireless sets receivers have a light that comes on to confirm receipt of signal from transmitter, is this working?
To prove local wiring ok, I put a normal light switch with wires connected in place of thermostat connections at boiler, (with boiler switched off of course).
Then switch boiler on and use switch to act as stat.
Once working, replace original connections and look at stat set up.