W10694181 Rev A
FOR SERVICE TECHNICIAN'S USE ONLY
NOTE: This sheet contains important Technical Service Data.
DANGER
Electrical Shock Hazard
Only authorized technicians should perform diagnostic voltage measurements.
After performing voltage measurements, disconnect power before servicing.
Failure to follow these instructions can result in death or electrical shock.
WARNING
Electrical Shock Hazard
Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.
Voltage Measurement Safety Information
When performing live voltage measurements, you must do the following:
- ■ Verify the controls are in the off position so that the appliance does not start when energized.
- ■ Allow enough space to perform the voltage measurements without obstructions.
- ■ Keep other people a safe distance away from the appliance to prevent potential injury.
- ■ Always use the proper testing equipment.
- ■ After voltage measurements, always disconnect power before servicing.
Temperature Charts
No-Load Performance, Controls in Normal Position
| Kw/24 hr/-0.4 | Percent Run Time/ -10% | Cycles/24 hr/-10 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Ambient °F/°C | 70°F 21°C | 90°F 32°C | 110°F 43°C | 70°F 21°C | 90°F 32°C | 110°F 43°C | 70°F 21°C | 90°F 32°C | 110°F 43°C |
| 26 cu. ft | 1.0 | 1.3 | 2.4 | 40% | 50% | 60% | 29 | 22 | 20 |
Table Caption: This table presents performance data for a 26 cubic foot unit at different ambient temperatures (70°F, 90°F, and 110°F), showing its energy consumption in Kw/24hr, percentage of run time, and number of cycles per 24 hours. The values indicate how these metrics change as the ambient temperature increases, with specific negative tolerances noted for each category.
| Refrigerator Compartment Average Food Temperature -4°F/2°C | Freezer Compartment Average Food Temperature -5°F/3°C | Ice Maker Compartment Average Food Temperature -5°F/3°C | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Ambient °F/°C | 70°F 21°C | 90°F 32°C | 110°F 43°C | 70°F 21°C | 90°F 32°C | 110°F 43°C | 70°F 21°C | 90°F 32°C | 110°F 43°C |
| 26 cu. ft | 37'F 3'C | 37'F 3'C | 37'F 3'C | 0'F -18'C | 0'F -18'C | 0'F -18'C | 24'F -5'C | 24'F -5'C | 24'F -5'C |
Table Caption: This table shows the average food temperatures in refrigerator and freezer compartments of a 26 cu. ft appliance at various ambient temperatures.
Temperature Relationship Test Chart
| Freezer Evaporator Inlet/Outlet -5°F/3°C | Suction Line -7°F/4°C | |||
|---|---|---|---|---|
| Ambient °F/°C | 70°F 21°C | 90°F 32°C | 70°F 21°C | 90°F 32°C |
| 26 cu. ft | -6'F -21'C | -3'F -19'C | 70'F 21'C | 94'F 34'C |
Table Caption: This table shows temperature readings for a freezer evaporator and suction line at different ambient temperatures for a 26 cu. ft. unit. The data indicates the corresponding temperatures within the freezer components under two distinct external environmental conditions.
| Average Total Wattage -10% | Suction Pressure -2 PSIG | Head Pressure - 5 PSIG | ||||
|---|---|---|---|---|---|---|
| Ambient °F/°C | 70°F 21°C | 90°F 32°C | 70°F 21°C | 90°F 32°C | 70°F 21°C | 90°F 32°C |
| 26 cu. ft | 90-110 | 100-120 | 1.0 | 3.4 | 100 | 141 |
Table Caption: This table presents expected operating ranges for Average Total Wattage, Suction Pressure, and Head Pressure for a 26 cubic foot appliance under different ambient temperature conditions (70°F/21°C and 90°F/32°C) and specific pressure variations.
Component Specifications
Table Caption: This table lists the electrical and mechanical specifications for various components of a refrigeration system, including cooling components, controls, and ice/water dispensing mechanisms, detailing voltage, wattage, current, resistance, capacitance, RPM, and other relevant parameters.
Control Board Troubleshooting
SW1
SW2
SW3
SW4
SW5
SW6
SWITCH DIAGRAM
To Enter Service Diagnostics Mode:
NOTE: Refrigerator must not be in lockout mode prior to entering Service Diagnostic Mode.
- Press SW1 and SW2 simultaneously for 3 seconds.
- Release both buttons when you hear the CHIME indicator. The display will show '01' to indicate the control is in Step 1 of the diagnostics routine.
To Exit Service Diagnostics Mode, Choose one of the Following Options:
- ■ Press SW1 and SW2 simultaneously for 3 seconds OR
- ■ Unplug refrigerator or disconnect power OR
- ■ Allow 20 minutes to pass.
Following the exit of the diagnostic mode, the controls will then resume normal operation.
NOTES:
- ■ Cooling diagnostics are Service tests 1 through 7 and 32 through 39.
- ■ Dispensing diagnostics are Service tests 8 through 31.
- ■ Each step must be manually advanced.
- ■ Press SW5 to move to the next step in the sequence.
- ■ Press SW4 to back up in the sequence to the previous step.
- ■ Diagnostics will begin at Service Test 1.
- ■ Each step is displayed in the 2 digits of the dispenser user interface display.
- ■ The step results are displayed in the 2 digits on the dispenser user interface and display 2 seconds after the step number is displayed. An amber 'Order Filter' light will be shown to designate that the step number is being displayed, and a red 'Replace Filter' light will be shown to designate that the status of the step is being displayed.
- ■ All button and pad inputs shall be ignored and all inputs shall be off except as described in the actions for each step.
Service Test - 1: FC Thermistor
- ■ The board will check the resistance value of the thermistor and display flashes results on the Temp display (01 = pass, 02 = open, 03 = short).
Service Test - 2: RC Thermistor
- ■ The board will check the resistance value of the thermistor and display the results on the Temp display (01 = pass, 02 = open, 03 = short).
Service Test - 3: Evaporator Fan and Air Baffle Motors
- ■ Turn on the FC evaporator fan and the air baffle motor.
- ■ Monitor the air baffle feedback. SW3 (01 = fan on. Air baffle open, 02 = fan on. Air baffle closed).
Service Test - 4: Compressor/Condenser Fan Motor/ Evaporator Fan
- ■ Control the sealed system loads by selecting SW3 (01 = on, 02 = off).
