Frigidaire FGHD2368TF Refrigerator Service Manual

The Frigidaire FGHD2368TF is a 21.7 cu. ft. counter-depth French door refrigerator with stainless steel finish, featuring automatic defrost, ice and water dispenser, and ENERGY STAR® certification. This service manual provides technical data, diagnostics, wiring diagrams, component testing, and parts information for qualified technicians. Always disconnect power before servicing. Refer to the service data sheet for detailed procedures. Below are the key sections.

1. Safety and General Information 2. Performance Data 3. Defrost System Specifications 4. Component Ratings and Testing 5. Diagnostic Modes and Error Codes 6. Wiring Diagrams Summary 7. Troubleshooting 8. Parts List

Safety and General Information

Caution: The information provided herein is designed to assist qualified repair personnel only. Untrained persons should not attempt to make repairs due to the risk of electrical shock, which may cause personal injury or death. Always disconnect power cord before servicing. Shield electrical parts and wiring from torch flame (chars at 200°F, ignites at 500°F); Avoid excessive heat to prevent liner distortion. Reinstall green grounding wires if removed.
Power: 115 VAC (127 VAC max); grounded outlet required.
Refrigerant: R134a; automatic defrost, bottom freezer with ice & water.
Safety Note: Always check for pinched or damaged wires before replacing components. Determine if failure is component, main control board, or wiring. Contact TID before replacing main control board. Refer to Service Manual for additional info.

Performance Data

Conditions: No load, no door openings, at 37°/0° control setting. Type A with Run/Start Capacitor.

65°F (18°C) Ambient:
- Operating Time: 90 to 100%.
- Freezer Temperature: -5° to 2°F (-20° to -17°C).
- Refrigerator Temperature: 34° to 39°F (1° to 4°C).
- Low Side Pressure: -2 to 6 psig (-14 to 41 kPa).
- High Side Pressure (last 1/3 cycle): 85 to 105 psig (586 to 724 kPa).
- Wattage (last 1/3 cycle): 30 to 50.
- Amps (running): 0.4 to 0.8.
90°F (32°C) Ambient:
- Operating Time: 100%.
- Freezer Temperature: -1° to 3°F (-18° to -16°C).
- Refrigerator Temperature: 34° to 39°F (1° to 4°C).
- Low Side Pressure: -2 to 6 psig (-14 to 41 kPa).
- High Side Pressure (last 1/3 cycle): 120 to 135 psig (827 to 931 kPa).
- Wattage (last 1/3 cycle): 50 to 70.
- Amps (running): 0.7 to 0.9.

Defrost System Specifications

Cabinet Size: 27’ & 28’ SD, 22’ CD.
Thermal Cutout: Line Thermal Cut-Out for protection.
Freezer:
- Heater: 500 Watts.
- Defrost Thermistor: 26.5 Ohms.
- Termination Cut-out: 48°F (8°C).
- Cut-in: 110°F (43.3°C); Cut-out: 135°F (57.2°C).
Fresh Food/Ice Maker:
- Heater: 70 Watts.
- Defrost Thermistor: 188.9 Ohms.
- Termination Cut-out: 68°F (20°C).
- Cut-in: 110°F (43.3°C); Cut-out: 135°F (57.2°C).
Electronic Timer (ADC): Defrost 24 minutes every 6-96 hours of compressor run time.

Component Ratings and Testing

Condenser Fan Motor: 3.1 Watts, 1100 RPM, 0.03 Amps, CW rotation opposite shaft.
Freezer Ice Maker: 115 VAC (127 max); Thermostat opens at 48°F (9°C), closes at 15°F (-9°C); Water Fill Volume: 102 to 130cc (3.4 to 4.3 oz.); One full turn of water fill adjustment screw equals 20cc (0.68 oz.).
Ice Maker Mold Heater: 165 Watts, 115 VAC.
VCC Compressor Motor Resistance: Check between terminals 1-2, 2-3, 3-1; All resistances equal for operative compressor. If failed, check Inverter Board for 10-15 VAC signals.
Evaporator Fan (Freezer - DC): Variable speeds (LO, HI); Current readings: OFF ~2, LO ~9, HI >40 (not mA).
Auger Motor: Controlled via relay RL5.
Twist Motor (FFIM): 12V DC.
Damper Motor: Controlled via outputs OUT1A/B, OUT2A/B.
Flapper Motor: Reversible 12V DC.
Water Valves: Dispenser (test 8), Ice Maker (tests 55C, etc.); 12V DC signals.
Humidity Sensor: Displays %RH or HI/LO for heater control.
Thermistors: Various (FF, FZ, Ambient @ Main/UI, Evaporator, Ice Maker Mold/Evap); Resistance and temp sensing as per diagnostics.

Diagnostic Modes and Error Codes

Error Codes

OP (Open FF Cavity Thermistor): FF thermistor open.
OP (Open FZ Cavity Thermistor): FZ thermistor open.
SH (Shorted FF Cavity Thermistor): FF thermistor shorted.
SH (Shorted FZ Cavity Thermistor): FZ thermistor shorted.
SY CF: UI to Main Board communication failure on startup.
SY CE: UI to Main Board communication error after operation period.
SY EF: Freezer Evaporator Fan Failure.
dl SP: Ice Chute Door is open; Check for obstruction.

Diagnostic Modes

Manual Defrost: Activate by pressing FZ and FF pads simultaneously for up to 10 sec.; Deactivate by same action; Display: "d" on FZ, nothing on FF.
Demo/Showroom Mode: Activate by pressing ^ and - pads; Deactivate by unplugging; Display: "77" on both FZ and FF.
Sabbath Mode: Activate by pressing v and - pads; Deactivate by same action; Display: "Sb" on both FZ and FF.
System Diagnostic Mode: Activate by pressing ^ and v pads simultaneously for up to 10 sec.; Advance tests with + pad; Deactivate by pressing + for up to 10 sec. or after 5 min. inactivity. All UI LEDs on initially; Tests include checks for components like heaters, fans, motors, sensors, and doors. Silence alarm before starting. Tests marked with "*" may not apply and are not displayed. View UI for "on," "off," "CL," "OP," "SH," "LO," "HI" or numerical results; listen for sounds or feel for heat/air flow.
Fresh Food Ice Maker (FFIM) Diagnostic Mode: Activate by pressing ^ and + temperature pads simultaneously for up to 10 sec.; Advance with + or - pads; Deactivate by pressing + for up to 10 sec. or after 5 min. inactivity. Silence alarm. Tests include thermistor checks, water valve, evaporator fan, ice level sensor, and twist tray.

System Diagnostic Mode Tests:

First Screen: All LEDs on UI illuminated except digit displays.
Second Screen: All segments of UI digit displays illuminated.
Third Screen: Blank UI display, no LEDs illuminated.
28 Dispenser Paddle: Press dispenser paddle; "On" when depressed, "off" when released.
46 Humidity Sensor: Activates automatically; "OP" if open, "SH" if short; AC Heater System displays %RH; DC Heater System: "HI" (heater on), "Lo" (heater off), %RH between values (heater may be on/off).
47 Dispenser Pocket Heater: Press set; Heater on when "on," off when "off."
2 Freezer Defrost Heater: Press set; Heater on when "on," off when "off"; Evaporator thermistor temperature flashed; Watch for temp increase (may take minutes).
8 Water Valve (Dispenser): Press set; FF door closed; Water dispenses when "on," stops when "off"; Collect water.
10 Auger Motor: Press set; FF door closed; Motor running when "on," stopped when "off."
11 Cube/Crush Solenoid: Press set; FF door closed; Do not leave activated; Solenoid activated when "on," deactivated when "off."
12 Condenser Fan: Press set; Fan running when "on," stopped when "off."
43 Mullion Anticondensation Heater: Press set; Flips on when "on," off when "off."
38 VCC Compressor: Press set; Compressor running when "on," off when "off."
13 FF Lights: Press set; FF lights on when "on," off when "off."
15 Freezer Evaporator Fan: Press set; Toggle between "off," "LO," "HI"; Current sensor reading flashed (not mA); OFF ~2, LO ~9, HI >40.
20 FZ Lights: Press set; FZ lights on when "on," off when "off."
22 Damper: Press set; Set fan to "HI" via test 15; Check air flow when "OP" (open), no leaks when "CL" (closed).
36 Ice Chute Door: Depress door or press set; "OP" when open, "CL" when closed; Or use power on-off for motor drive.
23 FF Door Open/Close: Open/close FF door; "CL" when closed, "OP" when open.
24 FZ Door Open/Close: Open/close FZ door; "CL" when closed, "OP" when open.
26 Ice Maker Defrost Heater: Activates automatically; Heater on; Ice maker evaporator thermistor temperature flashed; Watch for temp increase (may take minutes).
29 FF Thermistor: Activates automatically; Shows sensed temperature; Pass if within 10°F of gauge at location; "OP" if open, "SH" if short.
30 FZ Thermistor: Activates automatically; Shows sensed temperature; Pass if within 10°F of gauge at location; "OP" if open, "SH" if short.
33 Ambient Thermistor @ Main Board: Activates automatically; Shows sensed temperature; Pass if within +20°F/-10°F of gauge at location; "OP" if open, "SH" if short.
34 Ambient Thermistor @ UI: Activates automatically; Shows sensed temperature; Pass if within +20°F/-10°F of gauge at location; "OP" if open, "SH" if short.
39 Freezer Evaporator Thermistor: Activates automatically; Shows sensed temperature; Pass if within 10°F of gauge at location; "OP" if open, "SH" if short.
45 Ice Maker Mold Thermistor: Activates automatically; Shows sensed temperature; Pass if within +20°F/-10°F of gauge at mold; "OP" if open, "SH" if short.
68 Ice Maker Evaporator Thermistor: Activates automatically; Shows sensed temperature; Pass if within 10°F of gauge at location; "OP" if open, "SH" if short.
0 Firmware Parameters: Press set; Displays digit sequence; Record.
1 Main Board Firmware: Press set; Displays digit sequence; Record.
3 UI Firmware: Press set; Displays digit sequence; Record.

FFIM Diagnostic Mode Tests:

52C Ice Maker Thermistor: Activates automatically; FZ display shows temperature; "OP" if open, "SH" if short.
55C Water Valve: Press set; Remove ice tray to collect water; Measure fill (first empty tray via test 63C if needed).
57C Evaporator Fan (FFIM): Press set; "On" on FZ when activated, "OFF" when deactivated.
58C Ice Level Sensor: Activates automatically; Remove ice bucket, allow bail arm to drop; No alarm at home position (pass); Hold arm up, alarm sounds at home (pass); Runs continuously until changed.
63C Twist Tray: Press set; Remove ice bucket; FZ shows "1" and "GOOD."

Freezer Ice Maker Information: Test Cycling: Remove cover by prying with screwdriver at bottom notch; Rotate motor gear counterclockwise with screwdriver until holding switch completes circuit; All components function to complete cycle.

Fill Time Adjustment Mode (Fresh Food Ice Maker): Activate: Press and hold Water and Crush pads for up to 10 sec.; Adjust with + or - for Min (default), Mid, Max; Deactivate: After 10 sec. or press other button.

Wiring Diagrams Summary

Refer to Wiring Diagram in service data sheet (PDF). Key connections:

Power: LINE/NEUTRAL to main board.
Compressor: VCC via inverter board.
Sensors: Thermistors to main board (FZ/FF/Ambient/Evap/IM).
Fans: Evap (DC), Condenser (DC).
Valves: Water valves (main, dispenser, IM) 120V.
Heaters: Defrost (FZ/FF/IM), Mullion, Fill Tube.
Doors/Switches: Door ajar switches.
Grounds: Cabinet and base plate.

Troubleshooting

Not Cooling: Check power, controls, seals, vents; ensure level. Test compressor, fans, thermistors (OP/SH codes).
No Ice/Water: Verify water supply, filter, valves (test 8/55C); ice maker sensors (t6), heater (26/72).
Defrost Issues: Check thermistors (t2/t4), heaters (2/26), timer (6-96 hrs). Use manual defrost mode.
Noisy: Normal fan/compressor; level unit; inspect loose parts, fans (15/12/57C).
Error Codes: Diagnose per codes (OP/SH, SY CF/CE/EF, dl SP); check wiring, sensors, communication.
Door Problems: Test switches (23/24: CL/OP); adjust hinges.

Note:

Parts List

Water Filter (PureSource Ultra, PS12366457 / ULTRAWFC): $124.39
Door Gasket - Fresh Food (PS17990263 / 241778315): $75.40
Ice Maker Assembly (PS16221322 / 243297613): $93.69
Evaporator Fan Blade (PS473177 / 5308000010): $47.82
Door Bin (PS3497801 / 242079701): $76.37
Leveling Foot (PS425733 / 216396900): $32.86
Light Bulb (PS12712277 / 5304517886): $55.65