The problem is, IF you have a RV LP/120 refer, very few OEM's wire the refer receptacle to the Inverter output. Why? Because you can run off the LP in transit. Even Monaco years ago, they ran the LP/120 refer on LP. They had 2 receptacles behind the refer. One for the Icemaker(on Inverter) and the other for the refer operation(NO Inverter) and you ran the refer on LP. They have NOT had 12 volt TV's in Motorhomes in almost 20 years. The Inverter's if you have a LP/120 may not be large enough to power a refer and other appliances. Doug