What BRAND/MODEL of fridge???????????????????????????
Norcold 'N' Series......On light flashing every 3 seconds.
Bad thermistor. Fridge working in 'Backup Operating System'
Off level operation will KILL an RV absorption fridge.
They DEPEND on proper gravity flow for heat/cooling process.....off level disrupts that gravity flow.
Overheating of coolant then occurs which results in 'crystals' being formed
Crystals plate out on inside of tubing..blocking flow.more overheating...more crystals etc etc.
This blockage is accumulative and permanent---- 20 minutes of off level operation can cause overheating of coolant/crystals.
Absorption fridges are simple......no moving parts so they can last for decades.
OR they can be KILLED with in a few years.