The reason that all electronic controlled Dometic fridges (ie the ones with
the push bottom controls at the top) require 12V even when running on 120V,
is that the electronic control board ONLY runs on 12VDC and the fridge does
NOT have a power supply to convert 120VAC to 12VDC. Without 12V, the
electronic control board is DEAD and it will not energize the relay that
sends voltage to the electric heater. Hope that explains the need for 12V
regardless of usage on gas or electric.
David
>> I noticed that I have a number of wiring diagrams for various Dometic models
>> that came with my RM 2510 documentation. Possibly the diagram of yours is
>> among them depending what your model number is. If you don't have one I
>> would be glad to e-mail you a copy if I have it.
>
> Hi Gary,
> I checked and found that I do have a wiring diragram along with the parts
> list and identification, so now I just have to carefully follow up on the
> connections and see where things go awry. The first thing I noticed to check
> is the 12 volt fuses. I still don't understand why it would need 12volt to
> run on 110v. Not on gas, I can see why that would need 12volt on gas, but
> 110? My understanding of things electrical is limited so I have to pace
> myself and not rush through the investigation.
> thanks for the support.
> cheers, bill b.