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:
- Example for Samsung Fridge (Model: RT30MASS)
- Circuit Block Diagram & location of Defrost Timer
- Turn the Defrost Timer to RESET it, you will hear "tuck" sound
Tools required:
Costs involved:
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:- Look for the small box at the back of fridge, detach it from the fridge.
- Open up the cover of the box.
- Removed the broken Defrost Timer from its location.
- Replacement done. Broken part was taken out.
- Turn the Defrost Timer slightly to activate it, you will hear "tuck" sound.
Symptoms:
- Test and Reset Button for ELCB trip check is not working
- Heater LED is not ON, thus heater is not working
Findings:
- Test & Reset Board (Board Model: SW-G) is malfunction
- ELCB Board (Board Model: E2N) is malfunction
Photos:
- Block Diagram of Alpha EVO-i Water Heater
- Location of malfunction board (ELCB Board: E2N)
- Location of malfunction board (Test & Reset Board: SW-G)
- Faulty Push Button Switches of "Test" & "Reset"
- Faulty Parts on ELCB Board (Electrolytic Cap 470uF, CBB21 1uF, Varistor 14D471K)
Video (After Fixing):
- 0:00:08: Testing on Test / Reset Button
- 0:00:13: Testing on Heater LED ON
- 0:00:23: Testing on Test / Reset Button
- 0:00:28: Testing on Heater LED OFF
- 0:00:40: Testing on water supply cut-off, Heater LED OFF
- 0:00:42: Testing on water supply resume, Heater LED ON
Tools required:
Costs involved:
- Push Button Switches (2pcs): US$0.05 x 2 = US$0.10
- Electrolytic Cap 470uF: US$0.10
- Varistor 14D471K: US$0.10
- CBB21 1uF (105J630V): US$0.35
Note:
- New ELCB Board (Model: E2N): US$18 ~ US$20
- New Alpha EVO-i Water Heater: US$100 ~ US$120
Symptoms:
- Unable to power on even charging for long hours. Suspect battery is aging.
Findings:
- Battery is at low voltage level (below 3V)
Photos:
- Example of Mini Vespa (toys motorbike)
- Unscrew the screw on the battery compartment cover
- Detached the battery from the battery terminals (+ & -)
- Check the battery voltage level using multimeter
- Get the battery info and source for replacement battery
- Check the new battery voltage level before installing
- Connect both battery terminals (+ & -) and sealed it using hot glue gun
Tools required:
Costs involved:
- Rechargeable Sealed Lead Acid Battery (6V 4.5Ah): US$3 ~ US$5
Symptoms:
- Old Hitachi Washing Machine (SF-110LJ) is having Error Code (C9)
Findings:
- Suspect Lid Lock / Door Lock is malfunction
Photos:
- Location of lid lock / door lock mechanism
- Error Code C9 was displayed on the screen
- Unscrew top cover screw at left side
- Another 3 screws (right side, and at the back)
- Open up the top cover, unscrew 4 screws
- Location of the lid lock / door lock
- Detached the 4 cables attached to the lid lock / door lock
- Unscrew 2 screws to remove the lid lock / door lock
- Replacement Part: NTCY001CC3 (OEM Part)
Tools required:
Costs involved:
- NTCY001CC3 (OEM Part) for Hitachi SF-110LJ: US$15
