Samsung RFG299AA series, Service Manual

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Fast Track Troubleshooting
IMPORTANT SAFETY NOTICE – “For Technicians Only” This service data sheet is
intended for use by persons having electrical, electronic, and mechanical experience
and knowledge at a level generally considered acceptable in the appliance repair trade.
Any attempt to repair a major appliance may result in personal injury and property
damage. The manufacturer or seller cannot be responsible, nor assume any liability for
injury or damage of any kind arising from the use of this data sheet.
Models Covered:
RFG299AA**/XAA
French Door Refrigeration
Publication # tsRFG299AA Revision Date 11/05/2009
Sealed System Component Value Chart Refrigerant Charge R134a 5.64 oz.
1. Compressor → Sub-condenser → Hot Pipe → Back Clus-
ter Pipe → Dryer → R Capillary Tube → Refrigerator Evapo-
rator → Connected Capillary → Freezer Evaporator → Suc-
tion Pipe → Compressor
2. Compressor → Sub-condenser → Hot Pipe → Back Clus-
ter Pipe → Dryer → F Capillary Tube → Freezer Evaporator
→ Suction Pipe → Compressor
Component Resistance Wattage Voltage
Freezer Defrost Heater 60 Ω 240 120vac
Fridge Defrost Heater 120 Ω 120 120vac
French Mullion Heater 1800 Ω 8 120vac
Ice Duct Heater 3600 Ω 4 120vac
Dispenser Heater 7200 Ω 2 120vac
Water Tank Heater 72 Ω 2 12vdc
Sensors 2.5k Ω -89k Ω N/A 1~4.5vdc
Fans N/A N/A 7~12vdc
Sensors
Defrost
– The sensor voltage tells the Main PCB to turn off the Defrost
Heater At 50
o
in Freezer, 63
o
in Fridge
Compartment Temp – The sensor controls fan/compressor on/off to main-
tain temp
Ambient Sensor
Fan Speeds – Below 60 degrees condenser fan is off
Defrost Timing – The warmer the room the more often the defrost
How to Check Sensor Resistances Make
ice slurry. To do this, fill a cup with ice
(preferably crushed), then add water and a
teaspoon of salt to make a slush. Mix thor-
oughly and allow to sit for 2 to 3 minutes.
This will give you a 32*F reference. Now,
lower the sensor into the mixture and leave
for about 1 minute, then check the resis-
tance. It should be very close to 13,300
ohms. Before reinstalling the sensor, be
sure to rinse it with fresh water and dry it.
REMOVAL OF DISPLAY
Hold the Ice & Water select tab and pull it forward to take off
the Display Panel.
WHEN ASSEMBLING COVER DISPLAY
First insert it from the left side, then assemble to the right side.
Otherwise the hook can break.
First Defrost Cycle, Both Defrost Cycle Fridge only Defrost Cycle Fridge & Freezer
6 hrs, Pause Time 10 minutes 6~11 hrs (varies according to
conditions)
12~23 hrs (varies according to conditions)
Defrost Cycle Timing
Changing to and from C and F temperature readings: Press the Ice
Type and Water buttons simultaneously (No sound when both
buttons are pressed at the same time) for 8 seconds.