Whirlpool WRT138FZDB SERIES Service Manual Download Page 1 | Manualshive

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TECHNICAL EDUCATION

JOB AID W10329932

L-84

Vertical Modular

Washer

R-122

SERVICE MANUAL

“MATRIX”

18.2 CU FT TOP MOUNT REFRIGERATOR

W10881764

WRT138FZDB**, WRT138FZDM**, WRT138FZDW**

*All Engineering Versions

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Summary of Contents for WRT138FZDB SERIES

Page 1: ...R 122 SERVICE MANUAL MATRIX 18 2 CU FT TOP MOUNT REFRIGERATOR W10881764 WRT138FZDB WRT138FZDM WRT138FZDW All Engineering Versions ...

Page 2: ...stallation Instructions provided with the refrigerator GOALS AND OBJECTIVES The goal of this Service Manual is to provide information that will enable the In Home Service Professional to properly diagnose malfunctions and repair the 18 2 CU FT TOP MOUNT REFRIGERATOR The objectives of this Service Manual are to Understand and follow proper safety precautions Successfully troubleshoot and diagnose m...

Page 3: ...MODEL SERIAL NUMBER LABEL LOCATION 1 3 TECH SHEET LOCATION 1 3 NOTES 1 4 SECTION 2 THEORY OF OPERATION DIAGNOSTICS TROUBLESHOOTING SAFETY INFORMATION 2 2 POWER DISTRIBUTION 2 3 REFRIGERATION SYSTEM 2 4 WATER ICE SYSTEM 2 5 DEFROST SYSTEM 2 5 LIGHTING SYSTEM 2 5 NOTES 2 6 SECTION 3 DIAGNOSTICS COMPONENT ACCESS DIAGNOSTICS 3 2 COMPONENT ACCESS 3 3 ...

Page 4: ...iv n 18 2 Cu Ft Top Mount Refrigerator PRODUCT SPECIFICATIONS WARRANTY INFORMATION SOURCES inside back cover ...

Page 5: ...Top Mount Refrigerator n 1 1 Section 1 General Information This section provides general safety parts and information for the 18 2 Cubic Foot Top Mount Refrigerator Refrigerator Safety Model Serial Number Location Tech Sheet Location ...

Page 6: ...tell you what can happen if the instructions are not followed Your safety and the safety of others are very important We have provided many important safety messages in this manual and on your appliance Always read and obey all safety messages This is the safety alert symbol This symbol alerts you to potential hazards that can kill or hurt you and others All safety messages will follow the safety ...

Page 7: ...l Serial Number tag is located in the Refrigerated Compartment on the left side liner near the top Figure 1 Tech Sheet Location The Tech Sheet is located on the bottom rail of the machine compartment in the rear of the unit Figure 2 FIGURE 2 Tech Sheet Location FIGURE 1 Model Serial Number location ...

Page 8: ...1 4 n 18 2 Cu Ft Top Mount Refrigerator GENERAL INFORMATION Notes ...

Page 9: ...or n 2 1 Section 2 THEORY OF OPERATION This section provides information on Theory of Operation for the 18 2 Cu Ft Top Mount Refrigerator Power Distribution Refrigeration System Defrost System Lighting System Component Access Diagnostic Troubleshooting ...

Page 10: ...y to a green ground connection point or unpainted metal in the appliance Before removing the part from its package touch the anti static bag to a green ground connection point or unpainted metal in the appliance Avoid touching electronic parts or terminal contacts handle electronic control assembly by edges only When repackaging main control assembly in anti static bag observe above instructions I...

Page 11: ...tes at the liner side connector for the optional Ice Maker The 120 VAC routed to the RC is factory spliced and routed to the RC Light Hercules Control Board at CN2 4 and on some models to the FC Light HERCULES CONTROL BOX The Hercules Control Box CB Figure 1 is located in the RC in the housing for the User Interface UI FIGURE 1 Hercules Control Box 120 VAC Supply 120 VAC power from the power cord ...

Page 12: ...of air flowing to the RC As the air damper is moved towards the MIN FC position the damper restricts air flow to the RC and increases air flow to the FC and cooling time required to satisfy the RC temperature setpoint In this manner the RC temperature remains near the UI setpoint temperature while the FC temperature changes according to the position of the FC Temperature Selector Switch SEALED SYS...

Page 13: ...ve Defrost Control ADC routine determines when a defrost cycle is needed ADC monitors Compressor operation and door openings as the primary inputs Normal Operation During defrost 120 VAC power is applied to the heater from Control Board connector CN1 5 The FC Evaporator Thermistor monitors the temperature during defrost When the FC Evaporator Thermistor reads 41 F 5 C or after 25 minutes whichever...

Page 14: ...2 6 n 18 2 Cu Ft Top Mount Refrigerator THEORY OF OPERATION NOTES ...

Page 15: ...ENT ACCESS 18 2 Cu Ft Top Mount Refrigerator n 3 1 Diagnostics Component Access This section provides instruction on Diagostics and Component Access for the 18 2 Cu Ft Top Mount Refrigerator Diagnostics Component Access ...

Page 16: ...ches when all LED s turn on LED s will go out after 10 seconds To Navigate Diagnostics Use the tech sheet provided with the product or found on Service Matters to navigate diagnostics Advance through the Seven Diagnostic Steps sequentially by pressing SW1 Figure 2 Table 1 on the Tech Sheet lists the components tested during each Step The LED Display pattern can be used to determine the current Ste...

Page 17: ...tor and remove from the thermistor from the clip inside the air diffuser cover Evaporator Cover 1 Remove the freezer shelf 2 Remove the three 3 Philips head screws for the Ice Maker 3 Disconnect the Ice Maker wiring connector 4 Place the freezer temperature damper to the Min position 5 Remove the six 6 plastic Hole Plugs from the back of the freezer liner 6 Remove the six 6 screws from the back of...

Page 18: ...3 4 n 18 2 Cu Ft Top Mount Refrigerator DIAGNOSTICS COMPONENT ACCESS Notes ...

Page 19: ...ER READY TO IDENTIFY YOU AS AN AUTHORIZED IN HOME SERVICE PROFESSIONAL FOR LITERATURE ORDERS CUSTOMER EXPERIENCE CENTER PHONE 1 800 851 4605 FOR TECHNICAL INFORMATION AND SERVICE POINTERS www servicematters com IN CANADA FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL PHONE 1 800 461 5681 FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER S HOME CALL THE TECHNICAL ASSISTANCE LINE 1 800 488 47...

Page 20: ...18 2 CU FT TOP MOUNT REFRIGERATOR W10881764 ...

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