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Whirlpool WED99HEDW0 Technical Education

Hybridcare duet dryer with heat pump technology
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L-88
Multimedia
Enhanced
TECHNICAL EDUCATION
HybridCare™ Duet® Dryer
with Heat Pump Technology
WED99HEDW0, WED99HEDC0
JOB AID W10764068A

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  Summary of Contents for Whirlpool WED99HEDW0

  • Page 1 L-88 Multimedia Enhanced TECHNICAL EDUCATION HybridCare™ Duet® Dryer with Heat Pump Technology WED99HEDW0, WED99HEDC0 JOB AID W10764068A...
  • Page 2 FORWARD This Whirlpool Job Aid, "HybridCare™ Duet® Dryer with Heat Pump Technology" (Part No. W10764068A), provides the In-Home Service Professional with information on the installation, operation, and service of the “Whirlpool HybridCare™ Dryer.” For specific operating information on the model being serviced, refer to the “Use and Care Guide”...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS HybridCare™ Dryer with Heat Pump Technology SECTION 1 — GENERAL INFORMATION DRYER SAFETY ............................1-2 GENERAL THEORY OF OPERATION .....................1-3 MODEL AND SERIAL NUMBER LABEL ....................1-5 TECH SHEET LOCATION ........................1-5 MODEL & SERIAL NUMBER NOMENCLATURE ...................1-6 PRODUCT SPECIFICATIONS ........................1-7 SECTION 2 —...
  • Page 4 REMOVING THE AUXILIARY FAN ......................4-17 REMOVING THE HEAT PUMP (BASE ASSEMBLY) ................4-18 NOTES ...............................4-20 SECTION 5 — DIAGNOSTICS & TROUBLESHOOTING WHIRLPOOL CONTROL PANEL ......................5-2 DIAGNOSTIC GUIDE ..........................5-2 ACTIVATING SERVICE DIAGNOSTIC MODE ..................5-2 SERVICE DIAGNOSTIC MENU TABLE ....................5-2 USER INTERFACE TEST ........................5-3 LOADS TEST............................5-3...
  • Page 5: Hybridcare™ Dryer With Heat Pump Technology

    GENERAL INFORMATION Section 1: General Information This section provides general safety, parts, and information for the “HybridCare™ Dryer with Heat Pump Technology.” n Dryer Safety n General Theory of Operation n Model/Serial Number Location n Tech Sheet Location n Model & Serial Number Nomenclature n Product Specifications n Notes HybridCare™...
  • Page 6: Dryer Safety

    GENERAL INFORMATION Dryer Safety Dryer Safety 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.
  • Page 7: General Theory Of Operation

    Heating System - instead of two electric heaters, the HybridCare™ dryer substitutes the compressor (sealed system) for one of the heaters. The Compressor and Heater act very similarly as the two heaters did in the Whirlpool direct drive dryer. Previously, each heater was connected to its own heater relay.
  • Page 8 The HybridCare™ Dryer is not unlike its predecessor—the Whirlpool Duet direct-drive dryer (aka Alpha). Most of the components used in the Whirlpool direct drive dryer are also used in the new HybridCare™ dryer. Think of the compressor as the second heater.
  • Page 9: Tech Sheet Location

    GENERAL INFORMATION Model & Serial Number Location Model & Serial Number Label Location Figure 3 - Model / Serial Number Tech Sheet Location Tech Sheet Location (Access Under Cabinet Top) Figure 4 - Tech Sheet Location HybridCare™ Dryer with Heat Pump Technology...
  • Page 10: Model & Serial Number Nomenclature

    Model & Serial Number Nomenclature MODEL NUMBER 99HE INTERNATIONAL SALES OR MARKETING CHANNEL BRAND W = Whirlpool; M = Maytag ACCESS E = Electric Dryer; G = Gas Dryer PRODUCT W = Washer; D = Dryer FEATURE SET 99 = Sealed System Hybrid Dryer...
  • Page 11: Product Specifications

    GENERAL INFORMATION Product Specifications ELECTRICAL Line Voltage : 240 VAC (200-260) Elect. Dryer, 2-phase, “optimized” 208 VAC (176-229) Elect. Dryer, 3-phase, “less optimized” Frequency : 58 to 62 Hz (60 Hz nominal) Amps : (ELECT) 30 Amp Service Operating Temperature Range : 40 to 105°F (5 to 40°C) PRIMARY FEATURES Capacity :...
  • Page 12 GENERAL INFORMATION Notes HybridCare™ Dryer with Heat Pump Technology...
  • Page 13: Section 2 - Operation

    OPERATION Section 2: Operation This section provides operational use and care information for the “HybridCare™ Dryer with Heat Pump Technology.” n Control Panel and Features n Cycle Guide - Automatic Cycles n Cycle Guide - Timed Dry Cycles n Using the Dryer n Cycle Status Indicators n Additional Features n Dryer Care...
  • Page 14: Control Panel And Features

    OPERATION Control Panel and Features Control Panel and Features HybridCare™ Dryer with Heat Pump Technology...
  • Page 15: Cycle Guide - Automatic Cycles

    OPERATION Control Panel and Features (continued) Cycle Guide - Automatic Cycles Cycle Guide – Automatic Cycles HybridCare™ Dryer with Heat Pump Technology...
  • Page 16: Cycle Guide - Timed Dry Cycles

    OPERATION Cycle Guide - Timed Dry Cycles Cycle Guide – Timed Dry Cycles HybridCare™ Dryer with Heat Pump Technology...
  • Page 17: Using The Dryer

    OPERATION Using the Dryer Using Your Dryer WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all parts and panels before operating. Replace all parts and panels before operating. Failure to do so can result in death or Failure to do so can result in death or electrical shock.
  • Page 18 OPERATION Using the Dryer (continued) HybridCare™ Dryer with Heat Pump Technology...
  • Page 19: Cycle Status Indicators

    OPERATION Using the Dryer (continued) Cycle Status Indicators Cycle Status Indicators Cycle Status Indicators HybridCare™ Dryer with Heat Pump Technology...
  • Page 20: Additional Features

    OPERATION Dryer Care Additional Features Additional Features Dryer Care 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. HybridCare™ Dryer with Heat Pump Technology...
  • Page 21 OPERATION Dryer Care (continued) HybridCare™ Dryer with Heat Pump Technology...
  • Page 22 OPERATION Dryer Care (continued) WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all parts and panels before operating. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. Failure to do so can result in death or electrical shock.
  • Page 23: Troubleshooting

    OPERATION Troubleshooting Troubleshooting HybridCare™ Dryer with Heat Pump Technology 2-11...
  • Page 24 OPERATION Troubleshooting (continued) Troubleshooting 2-12 HybridCare™ Dryer with Heat Pump Technology...
  • Page 25 OPERATION Troubleshooting (continued) Troubleshooting HybridCare™ Dryer with Heat Pump Technology 2-13...
  • Page 26: Notes

    OPERATION Notes 2-14 HybridCare™ Dryer with Heat Pump Technology...
  • Page 27: Section 3 - Installation

    INSTALLATION Section 3: Installation This section provides installation requirements and procedures for the “HybridCare™ Dryer with Heat Pump Technology.” n Installation Requirements n Location Requirements n Drain System n Electrical Requirements - U.S.A. Only n Electrical Dryer Power Hookup - Canada Only n Install Leveling Legs n Electrical Installation - U.S.A.
  • Page 28: Installation Requirements

    INSTALLATION Installation Requirements Location Requirements Location Requirements TOOLS AND PARTS Gather the required tools and parts before starting installation. Tools needed: WARNING Flat-blade screwdriver #2 Phillips screwdriver Wire stripper Channel locks Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. 1/4”...
  • Page 29: Location Requirements

    INSTALLATION Location Requirements (continued) 3" (76 mm) 18" min. 48 in. min. (457 mm) (310 cm " (165 mm) 24 in. min. (155 cm 5" 3" (127 mm) (76 mm) 1" 1" "* (25 mm) (25 mm) (759 mm) " "...
  • Page 30: Drain System

    INSTALLATION Drain System Drain System Drain System 4.5" 4.5" 4.5" 4.5" (114 mm) (114 mm) (114 mm) (114 mm) Electrical Requirements - Electrical Requirements - Electrical Requirements - U.S.A. Only U.S.A. Only U.S.A. Only 4.5" 4.5" (114 mm) (114 mm) 4.5"...
  • Page 31 INSTALLATION Electrical Dryer Power Hookup - Electric Dryer Power Hookup – Electric Dryer Power Hookup – Canada Only Canada Only Canada Only 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.
  • Page 32: Install Leveling Legs

    INSTALLATION Install Leveling Legs Install Leveling Legs Install Leveling Legs 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. GROUNDING INSTRUCTIONS GROUNDING INSTRUCTIONS For a grounded, cord-connected dryer: This dryer must be grounded.
  • Page 33: Electrical Installation - U.s.a. Only

    INSTALLATION Electrical Installation - U.S.A. Only Electric Installation - U.S.A. Only Electric Installation - U.S.A. Only 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.
  • Page 34 INSTALLATION HybridCare™ Dryer with Heat Pump Technology...
  • Page 35 INSTALLATION HybridCare™ Dryer with Heat Pump Technology...
  • Page 36 INSTALLATION 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. 3-10 HybridCare™ Dryer with Heat Pump Technology...
  • Page 37 INSTALLATION HybridCare™ Dryer with Heat Pump Technology 3-11...
  • Page 38 INSTALLATION 3-12 HybridCare™ Dryer with Heat Pump Technology...
  • Page 39: Connect Outlet Hose

    INSTALLATION Connect Outlet Hose Connect Outlet Hose Connect Outlet Hose 4.5" 4.5" 4.5" 4.5" 4.5" 4.5" (114 mm) (114 mm) (114 mm) (114 mm) (114 mm) (114 mm) 4.5" 4.5" 4.5" 4.5" 4.5" 4.5" (114 mm) (114 mm) (114 mm) (114 mm) (114 mm) (114 mm)
  • Page 40: Complete Installation Checklist

    INSTALLATION Complete Installation Checklist Complete Installation Checklist WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Plug into a grounded 3 prong outlet. Disconnect power before servicing. Replace all parts and panels before operating. Do not remove ground prong. Failure to do so can result in death or Do not use an adapter.
  • Page 41: Door Reversal (Optional)

    INSTALLATION Door Reversal (optional) Door Reversal (optional) † ® TORX and T25 are registered trademarks of Acument Intellectual Properties, LLC. HybridCare™ Dryer with Heat Pump Technology 3-15...
  • Page 42 INSTALLATION 3-16 HybridCare™ Dryer with Heat Pump Technology...
  • Page 43 INSTALLATION HybridCare™ Dryer with Heat Pump Technology 3-17...
  • Page 44 INSTALLATION 3-18 HybridCare™ Dryer with Heat Pump Technology...
  • Page 45 INSTALLATION HybridCare™ Dryer with Heat Pump Technology 3-19...
  • Page 46 INSTALLATION 3-20 HybridCare™ Dryer with Heat Pump Technology...
  • Page 47 INSTALLATION Troubleshooting HybridCare™ Dryer with Heat Pump Technology 3-21...
  • Page 48: Notes

    INSTALLATION Notes 3-22 HybridCare™ Dryer with Heat Pump Technology...
  • Page 49: Section 4 - Component Access (Multimedia Enhanced)

    COMPONENT ACCESS Section 4: Component Access Multimedia Enhanced This section provides service parts access, removal, and installation instructions for the “HybridCare™ Dryer with Heat Pump Technology.” n Component Locations n Removing the Top Panel & Console n Removing the User Interface (UI) n Removing the CCU and REX n Removing the Front Panel &...
  • Page 50: Component Locations

    COMPONENT ACCESS FOR SERVICE TECHNICIAN’S USE ONLY Component Locations COMPONENT LOCATIONS — INTERNAL COMPONENTS COMPONENT LOCATIONS User Interface Cycle Control Unit (CCU) Door Switch (UI) Cycle Control Relay Expansion (REX) Unit (CCU) (See Figure 2 Below) Drum Light Assembly Auxiliary Moisture Sensor Strips...
  • Page 51: Specifications

    COMPONENT ACCESS FOR SERVICE TECHNICIAN’S USE ONLY Component Locations COMPONENT LOCATIONS — BASE COMPONENTS COMPONENT LOCATIONS Evaporator Condenser Drain Hose Drain Pump Auxiliary Float Sw. Motor Post Condenser Compressor Motor Capacitors Air Blower Figure 10 - Internal components. Figure 3 - Base Components SPECIFICATIONS DRYER SPECIFICATIONS 240 VAC (200-260) Elect.
  • Page 52: Removing The Top Panel

    COMPONENT ACCESS Removing the Top Panel & Console To Remove the Console WARNING 1. After removing the top panel, remove connector P2 from the CCU and disconnect the in-line connector between the UI and drum light (see Figure 2). Drum Light Connector Electrical Shock Hazard Disconnect power before servicing. P2 Connector Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 53: Section 4 - Component Access (Continued)

    COMPONENT ACCESS Removing the User Interface (UI) WARNING Remove selector knob Electrical Shock Hazard Figure 1 Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. Disconnect harnesses To Remove the User Interface 1.
  • Page 54: Removing The Ccu

    COMPONENT ACCESS Removing the CCU and REX Cycle Control Unit (Figure 1) WARNING Compressor Relay 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. Heater Relay To Remove the Cycle Control Unit (CCU)
  • Page 55: Removing The Front Panel & Door Switch

    COMPONENT ACCESS Removing the Front Panel & Door Switch 6. Remove four (4) 1/4” hex-head screws from the bottom of WARNING the front panel (see Figure 3). 7. Remove three (3) 1/4” hex-head screws from the top of the front panel (see Figure 3). Remove 3 Hex Head Screws Electrical Shock Hazard Disconnect power before servicing.
  • Page 56: Removing The Moisture Sensor

    COMPONENT ACCESS Removing the Moisture Sensor 5. Remove two (2) 1/4” hex-head screws securing the Outlet WARNING Grill & Housing Assembly to the front bulkhead (see Figure 2). 6. Lift up the Outlet Grill & Housing Assembly from the bulkhead (see Figure 2). Outlet Grill &...
  • Page 57: Removing The Drum Light

    COMPONENT ACCESS Removing the Drum Light & Outlet Thermistor WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all parts and panels before operating. Replace all parts and panels before operating. Failure to do so can result in death or Failure to do so can result in death or electrical shock.
  • Page 58: Removing The Belt, Drum, And Rollers

    COMPONENT ACCESS Removing the Belt, Drum, and Rollers 7. Disconnect Moisture Sensor connector (see Figure 3). WARNING Moisture Sensor Electrical Shock Hazard Connector Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 59 COMPONENT ACCESS Removing the Belt, Drum, and Rollers (continued) 10. Remove the five (5) 1/4” hex-head screws from the lint duct as illustrated in Figure 6. Swivel the lint duct down from the bulkhead and remove. Remove Belt From Pulley Push Figure 8 13.
  • Page 60: Removing The Drive Motor

    COMPONENT ACCESS Removing the Drive Motor 9. Locate the front and rear motor clips as illustrated in WARNING Figure 2 below. Using a small flat blade screwdriver, insert the blade of the screwdriver into the pocket at the tip of the clip.
  • Page 61: Removing The Drain Pump & Float Assembly

    COMPONENT ACCESS Removing the Drain Pump & Float Assembly To Remove the Drain Pump and Float Assembly WARNING IMPORTANT: The Drain Pump and Float Switch are replaced together as part of the Sump Cover assembly. 1. Unplug dryer or disconnect power. 2.
  • Page 62: Removing The Reed Lint Switch

    COMPONENT ACCESS Removing the Reed Lint Switch To Remove the Reed Lint Switch WARNING NOTE: The Reed Lint Switch is “heat staked” to the heat exchanger cover. To replace the reed lint switch, the entire cover must be replaced. 1. Unplug dryer or disconnect power. 2.
  • Page 63: Removing The Rear Panel

    COMPONENT ACCESS Removing the Rear Panel 5. Remove the fifteen (15) 1/4” hex-head screws securing WARNING the rear panel to the dryer (see Figure 3). Terminal Cover 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.
  • Page 64: Removing The Heater

    COMPONENT ACCESS Removing the Heater 5. Remove the 1/4” hex-head screw securing the heater WARNING connector to the inlet duct (see Figure 3). Remove screw Heater Connector Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or Figure 3 electrical shock.
  • Page 65: Removing The High Limit

    COMPONENT ACCESS Removing the High Limit and Auxiliary Fan WARNING WARNING Electrical Shock Hazard Electrical Shock Hazard Disconnect power before servicing. Disconnect power before servicing. Replace all parts and panels before operating. Replace all parts and panels before operating. Failure to do so can result in death or Failure to do so can result in death or electrical shock.
  • Page 66: Removing The Heat Pump (Base Assembly)

    COMPONENT ACCESS Removing the Heat Pump (Base Assembly) 9. Unclip the two (2) upper harness clips that are located on WARNING the top-edge of the left side panel (see Figure 2). Unclip from the left side panel. Electrical Shock Hazard Front Disconnect power before servicing.
  • Page 67 COMPONENT ACCESS Removing the Heat Pump (Base Assembly) continued 14. Remove the bottom two (2) 1/4” hex-head screws from the rear bulkhead. Loosen the top two (2) 1/4” hex-head screws at the keyhole slots. See Figure 5. 15. Lift the rear bulkhead assembly (unhooking top screws from keyhole slots) and remove assembly from dryer with attached inlet duct, rear-terminal bracket, and upper harness.
  • Page 68: Notes

    COMPONENT ACCESS Notes 4-20 HybridCare™ Dryer with Heat Pump Technology...
  • Page 69: Section 5 - Diagnostics & Troubleshooting

    Diagnostics & Troubleshooting This section provides diagnostic, fault codes, and troubleshooting information for the “HybridCare™ Dryer with Heat Pump Technology.” n Whirlpool Control Panel n Diagnostic Guide n Self Diagnostic Mode n Activating Service Diagnostic Mode n User Interface Test...
  • Page 70: Whirlpool Control Panel

    DIAGNOSTICS & TROUBLESHOOTING For Service Technician Use Only Whirlpool Control Panel WHIRLPOOL CONTROL PANEL (features and appearances may vary between models) (features and appearances may vary between models) Rotating the cycle selector knob turns off each corresponding cycle indicator. (Features and appearances vary between models).
  • Page 71: User Interface Test

    DIAGNOSTICS & TROUBLESHOOTING For Service Technician Use Only Unsuccessful Activation be sure to check for Saved Fault Codes using the Service Diagnostics mode; see procedure on page 5-2. If entry into diagnostic mode is unsuccessful, refer to the 1. Be sure the dryer is in standby mode (plugged in with all following indications and actions: indicators off).
  • Page 72: Install Diagnostics

    DIAGNOSTICS & TROUBLESHOOTING For Service Technician Use Only Exit Procedure 2. DIAGNOSTIC: Console ID, Motor, and Heater To exit Loads Test, press the POWER button once or twice Make sure the door is closed, and then press the START (depending on diagnostic procedure). button.
  • Page 73: Software Version Display

    DIAGNOSTICS & TROUBLESHOOTING For Service Technician Use Only Software Version Display Advancing Through Saved Fault/Error Codes Procedure for advancing through saved fault codes: NOTE: The Software Version Display mode will time out after 10 minutes of user inactivity and return to standby mode. Press and release most recent ...
  • Page 74: Service Fault/Error Codes

    DIAGNOSTICS & TROUBLESHOOTING For Service Technician Use Only Service Fault/Error Codes 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. Code Description Explanation and Recommended Procedure Indicates a CCU problem.
  • Page 75 DIAGNOSTICS & TROUBLESHOOTING For Service Technician Use Only Service Fault/Error Codes Continued from page 5-7 Code Description Explanation and Recommended Procedure Indicates low L2 voltage (less than 50 V) is detected at the CCU. • Check to see if a household fuse has blown or a circuit breaker has tripped. F4E4 L2 Line Voltage Error •...
  • Page 76: Troubleshooting Guide

    DIAGNOSTICS & TROUBLESHOOTING For Service Technician Use Only Troubleshooting Guide NOTE: Always check for error codes first (page 5-7) Problem Possible Cause Checks & Tests Won’t Power Up No power to dryer. Check power at outlet, check circuit breaker, fuses, or junction box connections.
  • Page 77: Section 6 - Testing

    TESTING Section 6: Testing This section provides a wiring diagram, control board specifications, testing procedures and strip circuits for the “HybridCare™ Dryer with Heat Pump Technology.” n Testing: Safety Information n Wiring Diagram n Component Testing n TEST #1: CCU Power Check n TEST #2: Supply Connections n TEST #3: Motor Circuit n TEST #4: Heating System...
  • Page 78 TESTING For Service Technician Use Only WARNING DANGER Electrical Shock Hazard Electrical Shock Hazard Only authorized technicians should perform Disconnect power before servicing. diagnostic voltage measurements. Replace all parts and panels before operating. After performing voltage measurements, Failure to do so can result in death or disconnect power before servicing.
  • Page 79: Wiring Diagram

    TESTING For Service Technician Use Only WIRING DIAGRAM Line 1 Line 2 Neutral IMPORTANT: Electrostatic discharge may cause damage to machine control electronics. See page 6-2 for ESD information. HybridCare™ Dryer with Heat Pump Technology...
  • Page 80: Component Testing

    TESTING For Service Technician Use Only TEST #1: CCU Power Check DANGER This test is used to determine if power is present at the machine control electronics. This test assumes that proper voltage is present at the outlet. 1. Unplug dryer or disconnect power. 2.
  • Page 81 TESTING For Service Technician Use Only CCU BOARD (FIGURE 1) Compressor Relay K2 • = pin-1 Heater Relay K3 CONNECTOR PIN-OUTS CONNECTOR P2 CONNECTOR P8 (User Interface) (Drain, Door Switch, Neutral) P2-1 (BK) +5 VDC, (UI) P8-1 (OR) Neutral, (Drain Pump) P2-2 (BU) DATA, (UI)
  • Page 82: Test #2 Supply Connections

    If +5VDC returns, unplug dryer or continuity with the left-most contact of the disconnect power and check harnesses terminal block, replace the power cord and and connections between the CCU and user retest dryer. TESTING interface (UI). If acceptable, replace the UI. Terminal Block Power Cord FOR SERVICE TECHNICIAN’S USE ONLY...
  • Page 83: Test #3: Motor Circuit

    TESTING For Service Technician Use Only Canadian Installations: 1. Unplug dryer or disconnect power. 2. Remove the cover plate from the top right corner of the back of the dryer. See figure 1. 3. Access the machine electronics without disconnecting any wiring to the CCU.
  • Page 84 5. Motor Circuit Check - Access the CCU and harness in the dryer; harness to the CCU; measure the resistance across P8-4 and P9-1. and the integrity of the power cord itself. If resistance across P8-4 and P9-1 is in 5.
  • Page 85 Figure 9 - Component locations. Auxiliary TESTING For Service Technician Use Only 10. Using figure 3 and the strip circuit below, check for the Pluggable Drive Motor Switch resistance values of the motor’s Main and Start winding coils as shown in the following table. Light Blue White NOTE: Main and Start winding coils must be checked at Green-Yellow...
  • Page 86: Test #4: Heating System

    TESTING For Service Technician Use Only TEST #4a: Heater Element DANGER Heater does not heat: ü Quick Check: Perform steps under “Install Diagnostics”, page 5-4, to test for L1 and L2 line voltage. 1. Unplug dryer or disconnect power. 2. Remove top panel to access the machine electronics. 3.
  • Page 87 TESTING For Service Technician Use Only Heater will not shut off: 1. Unplug dryer or disconnect power. 2. Remove top panel to access the machine electronics. 3. Remove connector P14 from the CCU and measure the resistance between P14-3 and P14-6 at the connector. Refer to “Outlet Thermistor Resistance”...
  • Page 88: Test #4B: Heat Pump

    TESTING For Service Technician Use Only 2. Unplug dryer or disconnect power. DANGER 3. Perform the procedure to remove the belt and drum on page 4-10, to access the compressor/heat pump assembly. 4. Visually check the connections between the compressor and run capacitor.
  • Page 89 TESTING For Service Technician Use Only 7. If the connections looks good, check for continuity Winding Resistance Contact Points between the violet wire terminal on the compressor relay in ohms of Measurements (K2) and terminal “C” (common) on the compressor. 4.13 ±10% Compressor terminal “C”...
  • Page 90: Test #4C Thermistors

    TESTING For Service Technician Use Only IMPORTANT: Be sure Speed is turned ON before testing. WARNING 1. Remove load from dryer. 2. Plug in dryer or reconnect power. 3. Run a TIMED DRY cycle of at least 5 minutes in duration. Select High, Medium, Low, or Extra Low.
  • Page 91: Test #5: Moisture Sensor

    TESTING FOR SERVICE TECHNICIAN’S USE ONLY For Service Technician Use Only NOTE: Over-drying may be caused by a short circuit in the WARNING sensor system. STRIP CIRCUITS 3. Unplug dryer or disconnect power. 4. Remove top panel to access the machine electronics. MOTOR CIRCUIT 5.
  • Page 92: Test #5A: Adjusting Customer-Focused Dryness Level

    TESTING For Service Technician Use Only TEST #5a: Adjusting Customer-Focused WARNING Dryness Level NOTE: If the customer complains about the clothes being less dry or more dry than desired and the moisture sensor passes TEST #5: Moisture Sensor, step 2, the total dry time can be lengthened or shortened by changing the Customer-Focused Dryness Level from “1”...
  • Page 93: Test #6: Buttons And Indicators

    TESTING For Service Technician Use Only 6. If all visual checks pass, perform TEST #1: CCU Power WARNING Check, page 6-4, to verify supply voltages. ¾ If supply voltages are present, replace the user interface and housing assembly. ¾ If supply voltages are not present, replace the CCU. 7.
  • Page 94: Test #7: Door Switch

    TESTING For Service Technician Use Only Figure 1 - Door Open WARNING N.O. N.C. Figure 2 - Door Closed Electrical Shock Hazard N.O. Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.
  • Page 95: Test #8: Drum Led

    TESTING For Service Technician Use Only TEST #8: Drum LED DANGER This test is performed if the drum LED does not light. 1. Pressing the DRUM LIGHT button on the console should toggle the button indicator on and off (and the drum LED on and off).
  • Page 96: Test #9: Drain System

    TESTING For Service Technician Use Only This test is performed when the Float Switch remains in the WARNING upper position (open state) and the dryer generates an F9E1 error code. NOTE: The Drain Pump and Float Switch must be replaced as part of the Drain Hose &...
  • Page 97: Test #10: Auxiliary Fan/Relay Expansion

    TESTING For Service Technician Use Only ¾ If visual check passes, go to step 4. DANGER ¾ If connector is not inserted properly, reconnect J2 and retest. 5. Remove connector J2 from the Relay Expansion board. With an ohmmeter, measure the resistance across pins 1 and 3.
  • Page 98: Notes

    TESTING Notes 6-22 HybridCare™ Dryer with Heat Pump Technology...
  • Page 99 PRODUCT SPECIFICATIONS & WARRANTY INFORMATION SOURCES IN THE UNITED STATES: FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL: FOR WHIRLPOOL PRODUCTS: 1-800-253-1301 FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL: THE TECHNICAL ASSISTANCE LINE: 1-800-832-7174 HAVE YOUR STORE NUMBER READY TO IDENTIFY YOU AS AN...
  • Page 100 HybridCare™ Duet® Dryer with Heat Pump Technology W10764068A...

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