GE GUD27ESSMWW Technical Service Manual
24 and 27 in. unitized laundry centers
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Summary of Contents for GE GUD27ESSMWW
- Page 1 Technical Service Guide August 2018 24 and 27 in. Unitized Laundry Centers GUD27ESSMWW GUD27GSSMWW GUV27ESSMWW DRYER EASY CARE COTTONS GUD24ESSMWW DELICATES TEMPERATURES LOAD SIZE TART TIMED DRY WASHER | DRYER GUD24GSSMWW XUD27ESSMWW XUD27GSSMWW 31-9292...
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Page 2: Safety Information
5. Locate the Warranty page. GE Appliances, a Haier Company Copyright © 2018 All rights reserved. This service guide may not be reproduced in whole or in part in any form without written permission from GE Appliances, a Haier Company. – 2 –... -
Page 3: Table Of Contents
Table of Contents Safety Information ........................2 Warranty ............................2 Table of Contents..........................3 Safety Requirements ........................6 Nomenclature ..........................7 ..........................8 Electric Dryer ........................8 Gas Dryer ..........................9 Control Features ...........................10 Loading and Using the Dryer ......................14 Venting the Dryer ........................14 Dryer Operation Overview ......................15 ............................16 Component Locator Views ......................17 Washer Components ......................17... - Page 4 Trap Duct Assembly ......................27 Door Switch ..........................27 Dryer Drive Belt ........................28 Drum .............................29 Drum Shaft and Bearing .......................29 Idler Assembly ........................30 Dryer Drive Motor and Blower Assembly ................30 Long Vent and Blower Motor ....................32 Heater Assembly ........................34 Safety Thermostat ........................34 Inlet Control Thermostat .......................35 Outlet Control Thermostat ....................35 High Limit Thermostat......................36...
- Page 5 Washer Harnesses .......................50 Lid Switch ..........................51 Lid Lock ..........................52 Pressure Sensor ........................53 Spin Basket ..........................54 Water Valve ..........................56 Automatic Temperature Control (ATC) ..................57 Troubleshooting ..........................60 Diagnostics and Service Information ....................62 Dryer Timer Chart .........................62 Washer Field Service Mode ....................63 Fault Code ..........................67 Fault Code Binary Display ....................75 Wiring Diagrams ...........................77 Electric Dryer ........................77...
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Page 6: Safety Requirements
Safety Requirements GE Factory Service Employees are required to use safety glasses with side shields, safety gloves and steel toe shoes for all repairs. Prescription Safety Glasses Brazing Glasses Safety Glasses must be ANSI Z87.1-2003 compliant Plano Type Safety Glasses... -
Page 7: Nomenclature
Nomenclature Model Number G U D 2 7 E S S M W W Brand Color G: General Electric WW: White X: Crosley Model Year M: 2011 U: Unitized Partner Type Product S: Standard D: Std Vent V: Long Vent Product Type S: Stationary Series... -
Page 8: Electric Dryer
Electric Dryer Terminal Wire Color Pink Brown/Yellow Start Yellow Main Drum Motor Yellow Blower Motor Orange Inner Heater Coils 27" Outer Blue Inner Heater Coils 24" Outer Not Used Timer Motor Outlet Biased Thermostats Temperature °F Temperature °C Thermostat Open Close Open Close... -
Page 9: Gas Dryer
Gas Dryer Terminal Wire Color Pink Brown/Yellow Start Main Drum Motor Yellow Yellow Main Orange Gas Valve Booster Safety Blue Timer Motor 3384 - 3816 Not Used Outlet Biased Thermostats Temperature °F Temperature °C Thermostat Open Close Open Close 130 +/- 5 Drum Outlet 120 +/- 6 55 +/- 3... -
Page 10: Control Features
Control Features Washer Models: GUD27, XUD27 GUV27 Washer Model: GUD24 Washer Cycles The washer cycle controls the type of washing process. The cycle select knob can be rotated in either direction. Turning the knob after the cycle has started will stop the washer and change the cycle to the new selection. - Page 11 The status lights show the stage the washer is in. When the selector knob is set to a new Illuminates When the fabric softener option has been selected. Wash When the washer is in the wash portion of the cycle. Rinse When the washer is in the rinse portion of the cycle.
- Page 12 Pressing the Start button will begin the cycle. If the Start button is pressed again with the lid Precise Fill (on some models) is selected as the load size. The lid must be closed to continue If the machine is paused more than 24 hours with the lid closed, the cycle will be cancelled, and drain the water.
- Page 13 NOTE: This appliance is designed so that the washer and dryer can be operated at the same time. Dryer Cycles For regular to heavy cottons. Easy Care (Med Heat) For synthetics, blends, delicates and items labeled permanent press. Delicates (Low Heat) For delicates, synthetics and items labeled tumble dry low.
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Page 14: Loading And Using The Dryer
For the best drying performance, the dryer needs to be properly vented. The dryer will use more Exhausting in the Installation Instructions. Use only rigid metal 4 inches in diameter ductwork inside the dryer cabinet. Use only rigid metal or Do not use plastic or other combustible ductwork. -
Page 15: Dryer Operation Overview
Dryer Operation Overview Air enters the dryer cabinet, passing through the heating elements (gas combustion chamber for gas models), and into the drum. The hot air heats the wet clothes and gradually removes their moisture in the form of water vapor. The moist air is vented through the dryer exhaust. Overall heating temperature is regulated by means of two temperature thermostats: an inlet control thermostat located near the heating elements and an outlet control thermostat located at the blower. - Page 16 – 16 –...
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Page 17: Component Locator Views
Component Locator Views Washer Components Tub Cover Pressure Hose Pressure Chamber Motor and Transmission Behind Front Motor Protector Drain Pump (Continued Next Page) – 17 –... -
Page 18: Electric Dryer Components
Electric Dryer Components Inlet Control Thermostat Safety Thermostat Mica Heater Motor and Blower Idler Pulley Assembly Outlet Control Thermostat Dryer Timer Connector Board Power Supply Connector Door Switch Connector (Continued Next Page) – 18 –... -
Page 19: Gas Dryer Components
Gas Dryer Components Safety Thermostat Motor and Blower Assembly Outlet Control Thermostat Burner Assembly Board Power Supply Connector Dryer Timer Door Switch Connector Connector – 19 –... -
Page 20: Washer Main Board Connector Locator View
Washer Main Board Connector Locator View J602 J512 Pressure Sensor J701 J615 J101 J511 J513 J514 J101: 120 VAC input J511: Washer Drive Motor J512: Mode Shifter and Drain Pump J513: Lid Switch and Lid Lock J514: Water Valve J602: Speed Sensor, RJ45 and User Interface Board J615: Personality Jumper J701: Thermistor –... -
Page 21: Components
Components WARNING: Sharp edges may be exposed when Service Panel servicing the laundry center. Use caution to avoid injury. Wear Kevlar gloves or equivalent It is necessary to remove the service panel to protection. access the mini-manual, water pressure sensor, washer control board, and fuses. -
Page 22: Control Panel
In the service position, four lock tabs located on Control Panel the bottom of the control panel will be engaged in four slots in the dryer front panel. The control It is necessary to place the control panel in the panel can be moved to the right to disengage it service position to access the washer controls, from the front panel. -
Page 23: User Interface Board
User Interface Board Main Board The washer buttons and LED assembly contains The main board is located behind the service the start/pause and fabric softener push buttons panel. It supplies power to all of the washer and the LED status lights. components. -
Page 24: Dryer Timer And Start Switch
Dryer Timer Replacement Dryer Timer and Start Switch 1. Place the control panel in the service position. (See Control Panel in this section of this The dryer timer, start switch, and timer voltage- service guide.) dropping resistor (electric models only) are attached to the dryer control bracket. -
Page 25: Timer Voltage: Dropping Resistor
Dryer Start Switch Replacement Dryer Front Panel 1. Follow steps 1 and 2 above from Dryer Timer Replacement. Front Panel Removal 2. Disconnect the wires from the start switch. NOTE: In the following steps, removing the dryer door allows for easier manipulation of the dryer 3. -
Page 26: Top Bearing And Bearing Slides
5. Unplug the harness connectors located below the right bottom corner of the front panel. (Two harness connectors for electric models, two for gas models.) The top bearing assembly is located on the back side of the front panel and utilizes four bearing slides. -
Page 27: Trap Duct Assembly
Trap Duct Assembly Door Switch The trap duct assembly houses the trap duct felt The door switch is fastened to the front panel by two locking tabs (one on each side). When the back side of the front panel. the dryer door is closed, the switch will complete the drum motor circuit, allowing dryer operation. -
Page 28: Dryer Drive Belt
Drive Belt Installation Dryer Drive Belt 1. Remove the dryer front panel. (See Dryer Front Panel in this section of this service WARNING: Sharp edges may be exposed when guide.) servicing the dryer. Use caution to avoid injury and wear Kevlar gloves and sleeves or equivalent 2. -
Page 29: Drum
Drum The drum shaft is attached to the rear of the drum with three T-20 Torx-head screws. The Drum Removal 1. Remove the dryer front panel. (See Dryer retainer in the center of the heater assembly Front Panel in this section of this service guide.) models). -
Page 30: Idler Assembly
Idler Assembly Dryer Drive Motor and Blower Assembly The idler assembly maintains proper tension The drive motor is a single-speed, dual-shaft, on the belt to minimize belt slippage. The idler 1/4-hp, 1725-rpm motor with an automatic reset assembly consists of an idler pulley that rotates overload protector. - Page 31 Motor and Blower Assembly Removal 8. Raise the rear of the motor bracket to clear the tab protruding from the bottom of the 1. Remove the drum. (See Drum in this section chassis. Slide the motor bracket back until of this service guide.) the bracket tabs clear the slots in the dryer chassis.
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Page 32: Long Vent And Blower Motor
14. Compress and remove the rear motor strap from the motor support. Note the position of the front motor strap. Loosen The long vent and blower motor was designed the two 1/4-in. hex-head screws and remove the to be used where straight run venting can reach front motor strap from the motor. - Page 33 2. Remove two 1/4-inch hex-head screws securing the drive motor to the chassis base. The long vent blower motor is connected parallel to the dryer drive motor. The long vent blower motor has a resistance of approximately 14.25 - 15.75 ohms. 3.
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Page 34: Heater Assembly
Heater Assembly Safety Thermostat The heater assembly is located behind the drum. On electric models, the safety thermostat is It consists of inner and outer open-wire elements, located on the top left area of the heater housing, each formed in a zigzag pattern fastened to a to the left of the inlet control thermostat. -
Page 35: Inlet Control Thermostat
Inlet Control Thermostat Outlet Control Thermostat On electric models, the inlet control thermostat is The outlet control thermostat is located on the located on the top left area of the heater housing, upper, rear area of the blower housing. The to the right of the safety thermostat. -
Page 36: High Limit Thermostat
Burner Assembly and LP Conversion On electric models, the high limit thermostat The burner assembly consists of the gas valve is located on the top right area of the heater coils, gas valve, burner, and inlet pipe. housing. On gas models, the high limit To convert the dryer from natural gas to LP gas, thermostat is located on the upper right side of Refer to LP conversion kit (Part #: WE25x217). -
Page 37: Gas Valve
Double and Main Coils Removal Gas Valve 1. Remove the drum. (See Drum in this section of this service guide.) The gas valve is attached to a bracket located in the bottom, right, front corner of the dryer cabinet. 2. Disconnect the wire harness from both coils. Gas Valve Removal 3. - Page 38 6. Disconnect the coil wire harness from each Caution: The ignitor is very fragile. To prevent coil. breaking the ignitor, care must be taken when removing or installing the gas valve. 7. Disconnect the ignitor wire harness and the 10. Lift the front of the combustion chamber, then maneuver the gas valve assembly from the 8.
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Page 39: Flame Detector
Flame Detector The ignitor is located at the end of the burner the combustion chamber. assembly in the combustion chamber opening and has a maximum rating of 4 amps. The ignitor Flame Detector Removal has an approximate resistance value of 40 to 400 1. -
Page 40: Ignitor Circuit Operation
The glo-bar ignitor circuit is made up of the following components: a gas valve with safety and main safety coil (resistance approximately 1,400 ohms) and a booster coil (resistance approximately 580 ohms). Both coils are needed to open the safety valve. Once energized, the safety coil alone will hold the valve open. -
Page 41: Washer Components
Washer Components WARNING: Sharp edges may be exposed when servicing. Use caution to avoid injury. Wear Kevlar gloves or equivalent protection. The single action agitator moves the clothes back and forth through the water while gently pulling Front Panel clothes from the top of the wash load to the bottom of the basket. -
Page 42: Top Cover Assembly
Top Cover Assembly Drain Pump Top Cover Assembly Removal The drain pump receives 120 VAC from control board location J512 pin 2 to pin 3. 1. Remove the front panel. (See Front Panel in this section of this service guide.) The drain pump motor has an approximate resistance value of 10.9 ohms 27-inch models 2. -
Page 43: Tub Cover
Tub Cover Suspension Rods NOTE: The tub cover can be replaced without Tub Suspension Rods Removal removing the tub. 1. Remove the top cover assembly. (See Top Tub Cover Removal Cover Assembly in this section of the service guide.) 1. Remove the top cover assembly. (See Top Cover Assembly in this section.) 2. - Page 44 4. Lift up on the rod while at the same time 3. Lift the rod through the support cup, tap the sliding the rod support ball down on the shaft. rod support ball down, and rotate the rod to Unsnap the shaft of the rod support ball from align with the open slot in the cup.
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Page 45: Drive System
Drive System The drive system consists of the belt, pulleys, Drive/Transmission Pulleys drive motor, mode shifter, speed/hall sensor and transmission. They all operate together to agitate The drive pulley is mounted to the drive motor. It and/or spin the load in the basket. cool during operation. -
Page 46: Speed/Hall Sensor
Speed/Hall Sensor The speed/hall sensor is mounted to the drive motor and sends a pulse signal back to the control board. This is done when the magnet that is mounted in the drive motor pulley passes over the sensor. Pin 1 to pin 5 should read approximately 4.5 Magnet VDC while rotating the basket by hand. -
Page 47: Washer Drive Motor
3. Unclip the main harness from the motor Washer Drive Motor connector by pushing up on the connector clip. The motor side of the harness is secured The drive motor is a 1/3 or 1/4 horsepower motor. in place. belt. This allows the machine to spin up to 800 RPM on the 27-inch models and up to 830 RPM on the 24-inch models. -
Page 48: Mode Shifter
Mode Shifter Switch Mode Shifter The Mode Shifter Switch's home position is The mode shifter consists of a motor that closed, ready for a spin cycle. When agitating, operates by receiving 120 VAC from the control the switch should be open. From the J512 board, a micro switch, and a spring and clutch. -
Page 49: Platform/Transmission Assembly
Mode Shifter Reinstallation Platform/Transmission Removal 1. Remove the agitator. (See transmission shaft. in the Washer Components section of this service guide.) 2. Install the clutch spring. 2. Remove the hub nut and Belleville washer. 3. Slide the clutch into the clutch level of the (See Spin Basket Removal under Spin mode shifter and slide the clutch onto the Basket in this section of the service guide.) -
Page 50: Washer Harnesses
Platform/Transmission Assembly Other than push-type harness wire ties, there is Reinstallation an edge clip wire tie used on the bottom. 1. Slide the shaft of the transmission into the opening on the bottom of the tub. 2. Line the guide post with the opening in the platform. -
Page 51: Lid Switch
Lid lock/switch harness Lid Switch The lid switch is inserted in an opening in the cover assembly, located at the left front corner of the lid recess. The switch is held to the underside of the cover by a lock tab. The lid switch is a safety feature that prevents the washer from agitating or spinning when the lid is open. -
Page 52: Lid Lock
Lid Lock Any time the lid is in the down position, the lid actuator presses down on lid lock mechanism. When the lid is closed, the lid lock engages the lid actuator and prevents opening the lid during the When the washer goes into the spin or rinse spin cycle and while the basket is spinning. -
Page 53: Pressure Sensor
The board then pulses neutral from J513 pin 3 through the lid switch activating the lock solenoid locking the lid. This pulse happens in milliseconds. A volt ohm meter may not see this action. Pressure Sensor The pressure sensor can be tested by either using Test 10 in the Service Mode, or by checking the output DC voltage of the pressure sensor at the control board. -
Page 54: Spin Basket
7. Remove the left hand thread 1-5/16-inch hub Spin Basket nut. If an impact gun is used, ensure to use the torque limiter (Part #: WX05X10028). Spin Basket Removal 1. Drain all water from the tub by using the drain and spin cycle. - Page 55 10. Lean the tub forward. Then lift and push the Outer Tub Removal bottom of the tub assembly toward the rear of 1. Remove the front panel, top cover assembly, the washer cabinet to be able to pull the top water valve mounting bracket, rod and spring of the tub out from under the top front support assemblies, agitator and basket assembly.
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Page 56: Water Valve
5. Slide the water valve to the right to drop Water Valve through the opening. Each water valve coil has an approximate resistance value of 1.1k ohm. This can be Slide Right measured from the main board J514 connecter pins 1 to 2 and 1 to 3. Water Valve Removal funnel hose from the water valve. -
Page 57: Automatic Temperature Control (Atc)
Resistance can be measured at the J701 main Automatic Temperature Control (ATC) board connecter. Make sure to unplug the connector to isolate the thermistor before taking resistance The Automatic Temperature Control (ATC) is a readings. To determine the temperature of the feature that utilizes a thermistor to regulate the incoming water, the main control measures the voltage returned from the thermistor. - Page 58 ATC Thermistor Removal 7. From inside the tub, remove the two 1/4-in. hex-head screws that attach the funnel to the NOTE: The ATC thermistor harness comes washer. with the water valve harness and are replaced together. 1. Remove electrical power from the machine. 2.
- Page 59 9. Pull the wires and connector down through the harness entry. NOTE: Make certain the rubber gasket is in place on the thermistor when reassembling. Gasket – 59 –...
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Page 60: Troubleshooting
General Electric Dryer COMPLAINT WRINKLES NO HEAT SHRINKAGE LONG DAY ALL FABRICS DAMAGE DAMAGE TIME ALL LOADS NO HEAT LONG DRY TIME CHECK SHAGS CUTS CHECK ALL DRUM & THERMOSTATE INTERIOR SURFACES CHECK 240 V TEMPERATURE BOTH SUPPLY DRUM SPEED CHECK NOTE 2 ARE THE CLOTHES... - Page 61 General Gas Dryer COMPLAINT No heat Wrinkles Long dry Shrinkage All fabrics DAMAGE time damage All loads NO HEAT, SHOT BURN LONG DRY TIME Check Check Snags cuts Thermostat Igniter All drum & Temperature operates? interior surface Drum speed Note 1 Flame detector Check Synthetics only...
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Page 62: Diagnostics And Service Information
Service Information Dryer Timer Chart – 62 –... -
Page 63: Washer Field Service Mode
Washer Field Service Mode Enter Field Service Mode: Press and hold the start button, turn the cycle knob 180 degrees and then release the start button. Once in the service mode, all LED's will blink. Rotate the knob clockwise to various positions per service function table to perform functional tests. To exit/end test, rotate cycle knob 1 click in either direction. - Page 64 Knob Index/ Test Name Description of test Test number MC Software After entering this test, press the Start button to toggle through Version the software version number as follows: (Example: v01.23) (Critical) Major Version (Lid Locked LED ON). 1st Press 2nd Press: Display 1 in binary.
- Page 65 Knob Index/ Test Name Description of test Test number UI Version After entering this test, press the Start button to toggle through the software version number as follows: (Example: v01.23) (Critical) Major Version (Lid Locked LED ON). 1st Press 2nd Press: Display 1 in binary. Minor Version (Lid Locked LED OFF).
- Page 66 Knob Index/ Test Name Description of test Test number Lid Switch Pressing Start will start the test. When the lid is open, the Lid Locked LED will blink. When the lid is closed, the Spin LED will blink. Spin Pressing Start will start the test. Spin test will perform child safety algorithm before it starts to spin.
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Page 67: Fault Code
Fault Code Fault Fault Name Description Repair Action Code Lock Monitor Lid lock didn’t occur or lid lock signal Check the resistance of the lid lock assembly. not seen by control due to lack of connection. Check the harness for open wires and/or connectors from the board to the lock assembly. - Page 68 Fault Code Fault Name Description Repair Action Mode Shifter Control didn’t see the transition from Check mode shifter coupler for damage and the ability to slide Agitate to Spin or vice versa in the time in and out freely. required. Could mean the shift didn’t Using an ohm meter, check to occur or Control didn’t get the signal ensure mode shifter switch is in...
- Page 69 Fault Code Fault Name Description Repair Action Pressure Sensor This determines if there has been a too Check to make sure house Loss water supply valves are sensor reading and the expected turned on. pressure sensor reading for the amount Check water valve of water the control calculated it has put operation.
- Page 70 Check each valves operation. (Replace water valve and send mean water did get that high due to back to GE Appliances.) output of sensor too high for actual Check the output voltage from the pressure sensor to ensure...
- Page 71 Fault Code Fault Name Description Repair Action Drain Pump While draining the pressure sensor value This fault is set and will be for water level did not indicate the washer seen with fault 16 when drain Clearing algorithm was empty before the Max Continuous pump clearing algorithm failed Drain ON time was reached.
- Page 72 Fault Code Fault Name Description Repair Action UI State Timeout This will happen if a cycle is paused or This is normal operation. This will happen if the consumer canceled and water is left in the tub for and/or control switched cycle to more than 24 hours.
- Page 73 Fault Code Fault Name Description Repair Action Critical Lid Lock 1. Lock blockage Verify that the lid lock is not blocked by any external debris. Failure Check lid switch continuity at 2. Lid Lock failure. Will not lock or unlock or J513 on the control.
- Page 74 Fault Code Fault Name Description Repair Action Water This will happen if water is left in the tub Check the output voltage from with the lid open for more than 15 minutes. the pressure sensor to ensure Accessibility it matches the water level in the basket according to the pressure sensor chart.
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Page 75: Fault Code Binary Display
Fault Code Binary Display – 75 –... - Page 76 NOTE: There is nothing special about Fault 32. Because of the limited number of LED's, these LED's will be – 76 –...
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Page 77: Wiring Diagrams
Electric Dryer Washer – 77 –... -
Page 78: Electric Dryer Long Vent Blower Motor Circuit
– 78 –... -
Page 79: Gas Dryer
Gas Dryer Washer – 79 –... -
Page 80: Washer
Washer Power Supply To Washer Personality Jumper Plugs – 80 –... -
Page 81: Index
Index Agitator 41 Leveling Legs 21 Air Duct Assembly 27 Lid Lock 20, 52, 73, 74 Airflow 16 Lid Switch 20, 42, 51, 66, 69, 70 Automatic Temperature 57 LP Conversion 36 Bearing Slides 26 Mode Shifter 20, 48, 49, 68 Component Locator Views 17 Nomenclature 7 Components 17, 18, 19, 21, 41...