After speaking the Technical Support people at Sub-Zero, at least I now know what electrical components I should be seeing from my 632/0 refrigerator/freezer unit and a little about how it should behave.
The model I have should use 684 kWh per annum when new and when taking the usage for the last three months and extrapolating for a rough number, it looks like I’m at 640 kWh. And that looks like it’s for a single component.
Freezer only
- Compressor
- Defrost Heater
- Evaporator fan
- Water valve
- Fill tube heater
- Drain tube heater
- Door light
Refrigerator only
- Compressor
- Evaporator fan
- Door light
Whole unit
- Condenser fan motor
- System Control board
When either door is opened the evaporator fan for that side shuts off. When either compressor is running, the condenser fan motor will also be running.