Fridge controller
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Mobicoool - 12/24VDC 0.3w 80-MC-065LH1

The fridge thermostat is bypassed and the system is controlled via a W1209
The fridge can be slid out without disconnecting the controller
The thermister is in the same housing as the mechanical controller.

Manual 1
Manual 2

If there is an issue the system can be put back to standard controller by unplugging the 2 connectors (on blue wires ) to the bottom terminal (T1) and (T3)
and connect up the white (T1) bottom connector  and yellow cable (T3)
T1 = bottom terminal
T3 = 3rd terminal up from bottom

T1 also has the white wire connected as this is needed to power the internal LED light in the fridge

The switching cables - Blue going to green at the controller have a 1k resistor in series - this is the same resistance that is seen across the standard controller

Pictures - that may be helpful

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