I have Osma RT-NV2 thermostats fitted in every room controlling the under floor heating. On two of them, although it looks like everything is working OK, the clock does not change. It displays a time but it stays at a single time. Therefore it does not switch the required temperature at the requested time.
As this has now happened on three of the units (the first was replaced by the fitter as it occurred shortly after installation), I was wondering if this is a common issue and if a fix is known.
I took the front panel off and replaced the battery on the circuit board but this made no difference.
Searching around, it seems that the units are also known as 52UH873.
Any thoughts from anyone or will I have to buy new units?
Many Thanks
As this has now happened on three of the units (the first was replaced by the fitter as it occurred shortly after installation), I was wondering if this is a common issue and if a fix is known.
I took the front panel off and replaced the battery on the circuit board but this made no difference.
Searching around, it seems that the units are also known as 52UH873.
Any thoughts from anyone or will I have to buy new units?
Many Thanks