Fault phenomenon: A BCD-200L type refrigerator cannot cool.
Analysis and Maintenance: Upon inspection, it was found that the control circuit board on the right side of the compressor was damaged. Since the spare parts were unavailable for purchase, it was decided to change the original electronic control to a mechanical control. The modification method is as follows: Remove the original control circuit board and transformer completely, and fix the thermostat using the vertical panel originally used to fix the transformer. Then, drill a 10mm hole on the left side of the back of the refrigerator, place the temperature sensing bulb of the thermostat inside the wall of the refrigeration compartment, and fix it with a plastic clip. Next, wrap and secure the exposed part of the sensor outside the refrigerator with a plastic tube. After connecting the control lines, power up the machine for testing. The cooling function of the refrigerator returned to normal. Finally, fix the lighting fixture in the refrigeration compartment and connect the power lines, thus completing the modification.
Meling refrigerator not cooling (changing from electronic control to mechanical control)
Beijing Meling refrigerator repair hotline - Published on August 20, 2011.