Tested with a voltage tester. The fridge is on a dedicated 20A circuit.
It is acting as if it’s getting no power. I unplugged and opened the lower back "cardboard" cover, the compressor is not on. Total silence no vibration or humming.
If the starter to the compressor is fried would it cause the inside lights to not come on too? There must be eight light bulbs or more inside both compartments and they are all out. Water filter status light is also off.
it turns out that receptacle for the refrigerator is downstream of a nearby GFCI receptacle. For some reason that GFCI test button must have been pressed and it cuts off power to that receptacle, which also cuts off power to the refrigerator receptacle. My voltage tester still showed power. That’s all that was. Pressing RESET fixed it.