Losing power to radio/fridge/step with engine running

Joined
Sep 28, 2021
Posts
68
Likes collected
81
Location
West Lothian, UK
Funster No
84,516
MH
Burstner LyseoTD690G
Exp
Since 2019
Hi folks. Looking for some help and advice.

This issue started in the last few days on my 2021 Fiat Ducato / Burstner Harmony Lyseo.

When driving the radio just switched off with a complete loss of stored stations / Bluetooth devices etc. It came back to life at our destination with the 12v powered on. Honestly never thought too much about it.

Today on another journey the exact same thing happened. This time I stopped in a lay-by with the engine still running and checked what else could be affected.

Radio (incl reversing cam) - dead
Fridge - dead
Electric step - dead
Truma controller - dead

Switched on the 12v with engine running and all came back to life again, the fridge was in auto mode and immediately picked up the running engine.

Switched off the 12v and everything seemed to stay working, well for at least a few miles when exact same thing happened again so I just left it as we were only an few miles until we reached the site.

We are now hooked up and the 12v system is running and everything is running but wondering if anyone had any idea where to start diagnosing this issue.

My original thoughts were a fuse but surely if a fuse is gone it’s gone it would either work or not.

Any help advice appreciated

Jason
 
Yes sorted, they fitted a New Control Board & Thermocouple, I did have 14.2 v at the Fridge when Engine was running so the Guy said straight away what it was. They gave me the old Board & there are Burn Marks on the Printed Circuit Board (Thermocouple was changed as they were getting Fridge out anyway).
Edit: Forgot to say no probs with my Radio or anything else ( Burstner Harmony Lyseo 690g)
Glad you got it fixed and under warranty 👍

Issues do sound a little different as mines was taking out radio, electric step, fridge and truma controller whilst driving. My fridge wasn’t clicking.

As I said I’ve not had the issue this year but still don’t understand what caused it to happen.
 
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