Truma Combi 4e

[Jugster]

Just fired up the boiler and heating system after winter shutdown. Water heats up ok but the heating is causing a problem? The heating runs ok at control setting 1 and 2 but when set to higher temperature and the fan starts to run the whole system shuts down and red light flashes on the control knobs. Resets ok by switching off and then waiting for the lights to stop flashing. Tried again, but seems as soon as you ask for higher temperature it shuts down? Will run ok and continuously at setting 2, but takes forever to heat the van.

Any ideas out there please?

 

[jezport]

You need to read the flash code on the boiler circuit board

 

[Jugster]

Thanks.
Once Ive read the code, I guess its down to a Truma engineer to sort out? Don't expect its a DIY fix?

 

[Jugster]

Hi all
Just an update on my post.
I googled this and it indicated a blocked gas regulator! Apparently they need changing every 9 years.
Anyway thought I’d give this a shot, and yes it was exactly that problem! So once regulator changed for new one, all systems were good. Decided to replace change over valve also. So all good now, hope this helps particularly those with older motorhomes like mine.