Electrically, you just need to: 1) connect both wires from the old mechanical thermostat to the "Cooling" terminal block (polarity doesn't matter). Or if your model doesn't have separate heat/cool the "relay" and configure settings for cooling mode rather than heating. 2) Tap into hot and neutral wires (going to the light bulb but BEFORE the door switch) and connect that to the STC-1000 power input (polarity doesn't matter).
Then configure the STC-1000, set a temperature to maybe 4C and set the "compressor delay" to at least 4 min, though I'm happy with 10. The default difference of 3C should be fine.
The plastic cutting varies by refrigerator design, but shouldn't be too confusing.
Electrically, you just need to: 1) connect both wires from the old mechanical thermostat to the "Cooling" terminal block (polarity doesn't matter). Or if your model doesn't have separate heat/cool the "relay" and configure settings for cooling mode rather than heating. 2) Tap into hot and neutral wires (going to the light bulb but BEFORE the door switch) and connect that to the STC-1000 power input (polarity doesn't matter).
Then configure the STC-1000, set a temperature to maybe 4C and set the "compressor delay" to at least 4 min, though I'm happy with 10. The default difference of 3C should be fine.
The plastic cutting varies by refrigerator design, but shouldn't be too confusing.
There is a wiring diagram for the STC-1000 in the manual: https://images-na.ssl-images-amazon.com/images/I/71VSFdFfszL...
...and right on the unit: https://wiringandcircuit.blogspot.com/2025/04/temperature-co...
There are videos of it being installed (not a refrigerator retrofit): https://www.youtube.com/watch?v=30TvX1Zz1-Y
...and being configured: https://www.youtube.com/watch?v=TQjicdtDVrQ