12 volt keeps randomly cutting off

[Bessy765]

Hi all, originally posted this with a different description as I thought it may be connected to the 240 volt charging voltage. But now it seems that is not the case. Several. Times now there is a loud click and the 12 volts cuts out except the supply to operate the three way fridge. We have a 2019 Burstner IEXO 735 with the rotary dial for the hab electrics. When it trips I push the rotary knob in the system resets but the sat nav powers up although previously turned off, and both gas tank electric valve turn on, the Truma panels has to be reset and water pump turned on. It seems completely random today all that was on was the tv, batteries are fully charged, checked the connections to the buzz bars battery terminals etc all good. Ideas where to go with this, this system has the type of fuses that id they trip shut the main power of (12 volt) they then reset.

 

[StillGoing]

Have you got a Schaudt Electroblok? When you normally turn off 12V at the control panel with an EBL it makes a loud click. I wonder if that’s the noise you’re hearing?

 

[Bessy765]

Yes it’s a 630 but if I turn the hab electrics off with the rotary dial no click is heard?