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Control panel not responding

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Control panel not responding Empty Control panel not responding

Post by Ready to go Mon Dec 05, 2022 1:02 pm

Hi.  Probably should have left the vehicle connected to the mains, but been away for a few days and had a low battery warning.  By the time I came back the electronic step had stopped working.  Connected the power and let it run for almost 24 hours - but the control panel is not powering up - and i have a Truma error message of W255 H - which I think just means it isn't getting a message from the control panel.
Battery is now fully charged and no obvious fuse/trip that i can see.
Control panel is showing date, temp, humidity etc. but won't turn on. 
Any suggestions?
Ready to go
Ready to go


Posts : 27
Joined : 2022-12-05
Location : South Wales
Auto-Sleeper : Broadway
Vehicle Year : 2021

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Control panel not responding Empty Re: Control panel not responding

Post by Tinwheeler Mon Dec 05, 2022 1:36 pm

This error message can occur if you disconnect mains hook up without first turning off the control panel. Always turn off the panel first.

There is a simple fix but I’m stuffed if I can remember what it is. You could check out old threads via the search facility and don’t forget there is a Factsheet section.


Posts : 3627
Joined : 2018-09-20
Location : Kernow
Vehicle Year : 2019

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