4-2-6) Freezer / Fridge Lamp Does Not Light Up - Samsung RSA1Z Series Service Manual

TROUBLE SHOOTING

4-2-6) Freezer / Fridge Lamp does not light up

Caution
1. When replacing the Freezer Lamp, be sure to turn off the power to prevent electric shock.
2. Take care when replacing the incandescent lamp to prevent skin burn.
Note
When the F-Door is open, its Door S/W will be open. And then 5V is to be applied to MICOM, signalling the Door Open.
After that, when 5V is input for more than 2 minutes, it will send out Door Open alarm for 10 seconds at an interval of 1
minute. (it's the same for the R-Door and the R-H/B Door.) So, when the Door S/W is defective, it will send "Ding
Dong" sound at an interval of 1 minute with the doors closed. In this case it needs repairing.
When the lamp is controlled with Relay
(Refer to the specifications below).
Note
The Room Lamp Relay
switches on & off when the
door gets opened and closed.
When the lamp does not light
up, check the relay operation
with its switching sounds by
opening & closing the door.
<How to Control Lamp>
All Models
Start
NO
YES
YES
Check F/R-DOOR S/W
contacts & Lamp Socket
Fridge Lamp
Conditions)R-Door or R-H/B Door Open
RY75
64
YES
Replace Lamp
NO
Check Reed S/W
NO
Replace PCB or Relay
Freezer Lamp
Conditions)F-Door Open
RY74