I have a dometic refrigerator model RM 3862 which I purchased refurbished 5 yrs ago. I use mainly on LP but occasional ac. It is installed in a remote cottage and is used mostly through summer months. It has worked well but this spring it did not work at all, LP or AC. There appears to be DC power to panel had front/top of fridge, all fuses are intact. I recently obtained a wiring diagram and will have an electrician check wiring. Any ideas, such as common parts that may need replacement?