Samsung RM255BABB, RM255BASB If Indoor Lamp of Freezer/Refrigerator doesn’t light, Diagnostic

DIAGNOSTIC

6-8) If Indoor Lamp of Freezer/Refrigerator doesn’t light

Caution!

1.When replacing the indoor lamp of freezer or refrigerator, please turn the power OFF to avoid an electric shock.

2.Please be sure to avoid a burn by the excessive heating of incandescent light bulb.

An example of F-Room Lamp is presented as follows.

And you may apply the same principle and method to the other indoor lamps.

Start

reference

The indoor lamp relay performs turn-on/turn-off as the door opens/closes. If indoor lamp doesn't light up, check up the operation noise of relay. The noise of relay operation will be heard whenever opening/closing the door.

Please see ”10-4. Door SWITCH(S/W)” and “10-

4.AC LOAD Operation Circuit” in the “10-14. Circuit Description” of manual, for the information related to the inside lamp operation.

Is the inside lamp filament broken?

NO

Is the point of contact of the

F-DOOR S/W normal?

YES

Is the control relay RY77

for the inside lamp in PCB normal?

YES

Replace

the inside lamp.

NO

Replace or troubleshoot

the door S/W.

NO

YES	Replace or troubleshoot
	control relay.
Check the F and R-door S/W connections and
check/troubleshoot the inside lamp socket.

Reference

If the door is opened, contact of door S/W is opened and voltage of 5V is applied to MICOM to finally sense the Openness. If 5V is sensed more than 2 minutes afterwards, Door-Open alarm will sound 'ding-dong' for 10 seconds every 1 minute. For that reason, if the door S/W has a failure, refrigerator makes 'ding-dong' sound every 1 minute. Please take note of it during service.

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