Switching from 2 way to 3way Fridge

Good find!

Thanks for the update!

CA Traveler wrote:
It there possibly some other connection or switch or reset that has to be completed even though you might not think so? Anything in the manual?

Well, I decided to go back to the beginning and go through the system from the start. I went through every fuse in the trailers fuse panel even-though it had no indicator lights saying a fuse was blown. Guess what? Yep, you guessed it....Blown fuse just no indicator on the panel. :S Fridge is working on gas and AC. One issue solved. Thanks to all. Since we are planning a Grand Canyon trip this summer and I will be going through all the trailer systems between now and then. I will start a new thread for the drop in voltage between the batteries and the fridge after I do some playing with the advance search button.:)

enblethen wrote:
Was the polarity correct?

I don't know if the polarity was correct but, the fuse leg closest to the bottom of the panel read 12.02 volts on both the 5 and 30amp fuses.

It there possibly some other connection or switch or reset that has to be completed even though you might not think so? Anything in the manual?

Was the polarity correct?

on both side of the fuses?
tried the reset procedure?

You've got a wiring problem and it can be the ground. Connect the negative voltmeter to a good frame ground. Measure the voltage to the negative battery post (should be very close to 0V) and positive battery post. That's post not the cable.

Repeat at the refer also using a good frame ground. You're trying to determine if it's the positive or negative or both wires that are the problem.

I'd disconnect the 12V heater wire just to be sure it's not the cause even though you have no display.

Maybe the refer is balking at 12.0V but you it should be very close to the battery voltage with the DC heater off.

pianotuna wrote:
TobyG that is quite low voltage. Can you check the voltage at the battery and at the fridge?

13.2 at the batteries. Is that drop enough to keep the fridge from working?

Then there's the question of what is dropping my volts prior to getting to the fridge?

TobyG that is quite low voltage. Can you check the voltage at the battery and at the fridge?