Is this a software issue in the thermostat or is it faulty and needs replacing. It is only 3 months old.

The Relay Box is a RF device. For the best performance install in an open space. Leave at least 30cm distance from any metal objects including wall boxes and boiler housing. Press and hold the button for 2 seconds, then hold the and buttons together until the screen displays Inst Normally on reaching the setting temperature rising it seems to cycle as if the differential is too low but the heating system is not noisy so I have accepted this. If it makes any difference, the boiler is in the loft, the RF Room thermostat is in the hall, probably 12 ft awayWe are considering fitting a wired thermostat (as my old my old one always worked well) but I have looked at the specs and it seem to me that wired would work in exactly the same way as wireless.

The display will show SS and a number from 0 to 5 indicating signal strength. This number will reset to zero every few seconds as a new signal measurement is made On a recent cold night I decided to set the overnight temperature from the standard 5deg C to 15 so the boiler would operate in the middle of the night if it went cold. It had been operating set at 20 when we went to bed and shut off as expected. It was coming down in temperature. I was woken at 2-15 with the heating coming on (as expected). The problem was it ran for about 5 mins and shut down. After only 1min it fired up again and continued cycling like this. It did not run long enough to get the bedroom radiator even warm. The heating system is a bit noisy before it settles down on a normal early morning warm up and this cycling could not be tolerated to see if the cycling time extended and gave some heat out to the bathroom and landing radiators. The thermostat seemed to see it as the system had reached the required temperature. Whilst every care has been taken to ensure that the information included in this document was accurate at the time of printing, we reserve the right to change specifications at any time. The photographs reproduced in this publication are within the constraints of the printing process and are NOT to be used for matching purposes. E&OE. Wolseley UK, The Wolseley Center, Harrison Way, Spa Park, Royal Leamington Spa, CV31 3HH Also the temperature offset of say + up to 3 degrees means that it will operate as if it is set 3 degrees higher. I have just had a new combi boiler installed, using the same wireless room thermostat, and I'm having trouble figuring out how best to use it.Press the button repeatedly until the screen displays CLr. Then press to clear any previous binding to other devices Install where signal strength is good, at least 30cm from any metal objects and at least 1m away from other electrical devices. Avoid proximity to heat sources or draughts.