Dometic fridge beep and flash.
I recently replaced my 3 way dometic fridge. I put it to the test of each to see operation of each and was happy of performance of each way . The last test was DC mode which worked fine for 3 days. The 4 day I saw all lights flash on and off continuously plus a beeping sound. I thought I was going to pull the fridge and send back to the vendor for replacement until I realized the DC voltage was too low to operate fridge this causing to go to error mode. Once I charged the battery, no more bells and whistles, everything back to normal.