Dometic NDR 1292 Refrigerator. light inside. the light switch is apparently bad it will not turn off by pushing the door switch

SOURCE: Dometic refig ndr 1292 not cooling all the time

you may have a defrost problem

SOURCE: How do I replace the water line on my ice maker on

most refrigerators have fixed position wheels on the bottom rear, And leveling bolts at the front. Try to pull the unit toward you with a little force. If the unit does not move then you will have to lower the leveling bolts until the front wheels touch the floor.

SOURCE: Need to replace door seal on Dometic NDR 1292

Many of the on-line appliance parts stores have manuals. Simply search for your model refrigerator, and they will show you exploded views of your refrigerator. You can pick the part you need and order it.

Just because the freezer is full of frost doesn't mean the door seal is bad. More likely, you have a problem with the defrost circuit. If you defrost the freezer, and it freezes up again within a short time, then the problem is in your defrost circuit. Those same on-line appliance parts stores can provide you with those parts as well.