Dometic Refer Workings

[Belle]

We have an older Dometic refrigerator (RM-100) and are looking at up-grading to a newer model (28xx series). Our RM100 is all manual without 12 volt controls. Do the newer model 28xx’s need to have a 12 volt connection to operate on either 120v or propane?

Thank you in advance for any info you can provide.

[Stormalong]

Yes, 12 volts is required for the control board to function. This controls electronic spark ignition of propane, flame sensor circuit and thermostat.

[idroba]

Originally Posted by Belle

We have an older Dometic refrigerator (RM-100) and are looking at up-grading to a newer model (28xx series). Our RM100 is all manual without 12 volt controls. Do the newer model 28xx’s need to have a 12 volt connection to operate on either 120v or propane?

Thank you in advance for any info you can provide.

Virtually all Dometic refrigerators now require a 12 volt connection to operate the temp controls and circuit board for lighting. That board is also used with the 120 volt side, so 12 volts DC is necessary even for that operation.

There are a few Dometic refrigerators in the small (3, 4, and 5 cu ft) which use the older technology for lighting and operation, and use a hi lo flame for propane temp control. However, even those use 12 volts for their initial lighting of the low flame when on propane.

So, the long answer is above, the short answer is yes, you will need 12 volts DC to make a newer Dometic RV refrigerator work.

[Belle]

Thank you both for your replies. The info helps a lot.