DIY Series 46: Samsung Fridge Not Cooling

Symptoms:

• Samsung Fridge is not cooling (also no light when open the door)

Findings:

• When power OFF and ON again, compressor is not working
• There is no switching sound at the back of fridge after power ON

Photos:

1. Example for Samsung Fridge (Model: RT30MASS)
2. Circuit Block Diagram & location of Defrost Timer
3. Turn the Defrost Timer to RESET it, you will hear "tuck" sound

Tools required:

• Screwdriver

Costs involved:

• NIL

Note:

• In case of the Defrost Timer is still not working after reset, replace it with a new unit
• New Defrost Timer: US$3.50 ~ US$4.50

[Update] 2023-11-09

• After merely more than 1 week, the Defrost Timer is malfunction again.
• Hence, new part (TD-20C) is needed as replacement part.

Photos:

1. Look for the small box at the back of fridge, detach it from the fridge.
2. Open up the cover of the box.
3. Removed the broken Defrost Timer from its location.
4. Replacement done. Broken part was taken out.
5. Turn the Defrost Timer slightly to activate it, you will hear "tuck" sound.