Samsung RF267AEPN, RF267AEBP, RF267AE** Troubleshooting, If FAN does not operateF, R, C - FAN

TROUBLESHOOTING

4-2-2. If FAN does not operate(F, R, C - FAN)

-The refrigerator of this model has BLDC FAN motor. BLDC motor is driven by DC 7~12V.

-On the normal condition of COMP ON, it operates together with F-FAN motor.

If door is opened and closed once at a high ambient temperature, it will be operated after 1 minute delay.

Therefore, you are advised not to taken it for an error.

-. If there is a trouble, you should select the self-diagnostic function to check the trouble before power off.

Start

		IsthevoltagebetweenMAIN				IsthevoltagebetweenMAIN
		PCBREG1,HEATSINKand			PCBREG1,HeaterSinkandCN76#4
	CN76#5(Sky-blue)aroundDC7~12V?					(Orange)aroundDC7~12V?
	Is the external temperature above					Is the voltage between MAIN
						PCB REG1,Heater Sink and
66.2 (19 )?
						CN30#2 (Purple) around 0V?
	Recheck after 7 minutes				Door & MICOM State
	(Time could be delayed					F	R MICOM(#82)
	depending on the			Door	MICOM
	temperatures. If the				(#83)		Right and Left
	temperature is lower, It
			Close		5V(High)		0V(Low)
	may not operate : about
	59 (below 15 )		Open		0V(Low)		5V(High)

Is COMPRESSOR ON ?

Excute manualoperation.

If initial temperature of F Room is under the 41 (5 ), waitng 7 minutes and then activate.

Is the voltage between MAIN

PCB REG1 Heater Sink and CN76#3

(Yellow) around DC7~12V?

FAN work normally

Is the voltage between MAIN

PCB REG1 Heater Sink and CN30#1

(Black) around 4.5~5V?

Repair the connection

of Door switch

Power on with about 7	In initial power to appliance, the compressor
minutes delay after power
	and fans of fresh food/ freezer, compressor
OFF. (For preventing the
over load of compressor)	fan operate. If freezer temperature is
	sensed of 41 by momentary power
	failure, fans will operate after 5 minutes.

Does DC7~12V alternate with below					DoesDC7~12Valternatewithbelow			DoesDC7~12Valternatewith
DC 2V between MAIN PCB REG1 Heater					DC2VbetweenMAINPCBREG1Heater		belowDC2VbetweenMAINPCBREG1
	Sink and CN76#5(Sky-blue)					SinkandCN76#4(Orange)	HeaterSinkandCN76#3(Yellow)
										Replace MAIN PCB
F FAN pulse voltage Typical PCB Ground					Reference
CN76#7(Brown)		REG1 Heater Sink		CN76-7(F),8(R),9(C)will generate the pulse signal when motor rotates.
									Expected causes
			These signals will be inputted into MICOM.
			Unless signals are not inputted during motor operating, will be ON 10						Check that if FAN-MOTOR has failure
			seconds after fan Off. But if signals are not still entered, the above operation						itself.
			will restart four times more.						Check that if wiring connection has bad
			If signals are not entered continuously, the motor will be restarted after 10						contact.
			seconds.						Check the input of the fan motor rotation
			This function is effective when the normal operation of motor would be						pulse when motor fan operates.
The voltage measured around 2~3V			restrained by foreign matters such as ice.

with multi-meter though the voltage is			Typical PCB Ground
very weak because of pulse signal		Checking method of R,F,C FAN Motor voltage
		The voltage between PCB typical Ground REG1 Heater Sink and	REG1 Heater Sink
	Display for checking the self-diagnostic function	F FAN ; CN76#3(Yellow) shall be less than DC 7~12V.
		R FAN ; CN76#4(Orange) shall be less than DC 7~12V.
	R FAN ERROR	C FAN ; CN76#5(Sky-blue) shall be less than DC 7~12V.
		- Motor rpm could be changed by capability without previous.

F FAN ERROR

1) F-FAN 2) R-FAN 3) C-FAN

C FAN ERROR

68