Bosstherm blank screen

[Chris H]

looking for advice, I have a Bosstherm BPS242 wired thermostat that is showing a blank screen at approx same time each day, the screen display returns later, have tried new batteries, no difference. Eventually replaced screen unit for only the same issue to happen at the same time of day. Do not use the unit in timer only on day and night switch. It is installed in a static caravan and is controlling a Morco GB24 series II boiler.

 

[Gas engineer]

Screen unit? Does that mean you have fitted a replacement screen to the unit? If so I would opt for a whole new thermostat, Boss (Siemens) not usually very good.

 

[Chris H]

Fitted a new thermostat unit