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#  tsRFG298AA  RevC 03/30/2011

                                                                                                                                                       8 

 

Compressor  & System Operation Testing

 

The Time Divided Multi-cycle (TDM) System  (Stepper Valve) is 
used to switch refrigerant flow . This improves temperature control 
and energy efficiency. 

If it fails in the all evaporator mode, it should work properly, using 
slightly more energy. If it fails in the Freezer evaporator only mode, 
there will be a Fridge no cool  Force on the Fridge with the ―Power 
Cool‖ option. Monitor the Fridge evaporator(s) temp by  using the 
Defrost Sensor(s). If  the temp doesn’t decrease, then suspect the 
Main PCB is not supplying signal to switch the diverter valve. 

TEST BEFORE INTERPRETING LED  BLINKING FREQUENCY 
Compressor not running 
1. Activate Forced Compressor Operation, wait 2 minutes (in case of high head pressure) 
2. If compressor doesn’t start, check CN75 for 2~2.8vdc (if not there replace Main PCB) 
3. Check for 120vac to inverter PCB CN02 L-N 
4. If  voltage is OK, remove power, disconnect CN03 (Inverter PCB) and check resistance to the 
windings. Aproxametly10 ohms. If not correct , inspect wire harness, if OK replace compressor. 
5. Disconnect CN02 (SMPS PCB), check resistance to  Overload , if open replace overload. 

CN04 Compressor Control 
2- (CN40-4) 5vdc (Brn-Gry) 
4 Comp Signal (Org) 

CN03 Compressor Windings 
1 Compressor (Blue) 
3 Compressor (Prp) 
5 Compressor (Wht) 

CN02 Overload 
& A/C Line 
1 OLP (Brn) 
3 OLP (S/Blu) 
3 L (Blk) 
1 N (Red) 

CN75 To Comp Inverter Board

 

2-3 (Brn-Gry)

 5vdc

 

4-3 Comp control (Org-Gry) 

2~2.8vdc

 

 

Protection 

Functions 

LED Blinking Frequency 

Test 

Replace 

Starting Failure 

 

Check the Inverter PCB & Comp 

Relay Connectors 

Connectors OK,replace Inverter PCB, if same, 

replace compressor 

SPM Fault 

 

If blinking after reset,  

Check System for restriction & refrigerant, if OK 

replace Inverter, if same, replace compressor 

Detecting 

Position Failure 

 

Check Inverter Connectors,  

Connectors measure OK, replace compressor, if 

same, replace Inverter PCB 

Motor Locked 

 

Compressor Locking 

Compressor 

Low Voltage 

 

Compressor Locking, check input 

voltage 

Replace Inverter PCB, if same, replace 

Compressor 

Over Voltage 

 

Compressor Locking, check input 

voltage 

Replace Inverter PCB, if same, replace 

Compressor 

Summary of Contents for RFG298AA**/XAA

Page 1: ...Saver Fridge simul taneously No sound when both buttons are pressed at the same time til it beeps and goes blank 8 12 seconds Publication tsRFG298AA Revision Date 03 30 2011 Component Value Chart Press Freezer button a second time to Force Mid Speed Run 3600RPM 2450RPM 2200RPM NOTICE Parts Change The interior lighting changed from incandescent lighting to LED lighting The new parts are NOT interch...

Page 2: ...ivity for 5 cycles 10 seconds off 3 seconds on the fan drive circuit is disabled for 10 minutes TO TEST THE FAN CIRCUIT VOLTAGE Power off and back on to check the DC voltage to the motor wait from 10 to 60 seconds for the fan voltage to kick in and then check fan voltage the average reading is 9 VDC If you get 3 seconds of voltage every 10 seconds for the 5 fan power up cycles then the Main PCB is...

Page 3: ... Sensor will check the temperature when it is lower than 1 5 for more than 5 minutes it will do a harvest with or without ice in the tray then fill with water 58 minutes after water is supplied to the Ice Tray the Ice Maker Sensor temperature will be checked When the Ice Maker Sensor maintains lower than 1 5 for 5 minutes it completes the harvest if the ice bin is not sensed as full Thermistor sen...

Page 4: ...e error is displayed after three failed attempts Replace I M WATER HEATER ERROR Error is displayed w hen the w ater reservoir tank heater is open or shorted Disconnect heater connector from PCB check resistance EXT SENSOR Ambient Temp Sensor Error open or short circuit connector failure Cause is also a temperature reading 122 or 58 F The voltage at MAIN PCB Sensor betw een 4 5V 1 0V F SENSOR Freez...

Page 5: ...30 2011 5 SERVICE BULLETIN PRODUCT Refrigerator BULLETIN NUMBER ASC20100714001 DATE 07 14 2010 Please review before ordering any parts CN78 1 3 Fz LED Blk Gry 4 7 FF LED Red Gry CN71 All 120vac 5 N Gry 9 Def Htr Common Org ...

Page 6: ...2 Red Blk 5vdc CN75 To Comp Inverter Board 1 CN76 1 Blk Gry 13vdc 2 CN76 1 Brn Gry 5vdc 4 3 Compressor control Org Red 2 2 8vdc CN79 2 7 Fill tube heater freezer Blu Wht 13vdc 3 7 Water Tank Htr Pnk Wht 13vdc CN30 Sensors Switches 1 5 Freezer Dr Sw Blk Gry 5vdc 1 5 Freezer Dr Sw Blk Gry 5vdc 2 CN50 7 R Door Sw Prp Gry 5vdc 3 CN76 1 F Sensor Red Gry 3 5 4 2vdc 4 CN76 1 F Def Sensor Org Gry 2 3 4 2v...

Page 7: ... tsRFG298AA RevC 03 30 2011 7 Late Production change ...

Page 8: ...nd check resistance to the windings Aproxametly10 ohms If not correct inspect wire harness if OK replace compressor 5 Disconnect CN02 SMPS PCB check resistance to Overload if open replace overload CN04 Compressor Control 2 CN40 4 5vdc Brn Gry 4 Comp Signal Org CN03 Compressor Windings 1 Compressor Blue 3 Compressor Prp 5 Compressor Wht CN02 Overload A C Line 1 OLP Brn 3 OLP S Blu 3 L Blk 1 N Red C...

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