ML-2 TECHNICAL EDUCATION Epic™ FRONT-LOADING GAS AND ELECTRIC DRYERS MODELS: MED / GD 9700S MED / GD 9600S JOB AID 8178601
FORWARD This Maytag Job Aid, “Epic™ Front-Loading Gas and Electric Dryers,” (Part No. 8178601), provides the In Home Service Professional with information on the installation, operation, and service of the Epic™ Front-Loading Gas and Electric Dryers. It is to be used as a training Job Aid and Service Manual. For specific information on the model being serviced, refer to the “Use and Care Guide,” or “Tech Sheet” provided with the dryer.
TABLE OF CONTENTS Page GENERAL ............................................................................................................................................ 1-1 Safety First ...................................................................................................................................... 1-1 Model & Serial Number Designations .............................................................................................
— NOTES — - iv -
GENERAL SAFETY FIRST Your safety and the safety of others is very important. We have provided many important safety messages in this Job Aid and on the appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.
MODEL & SERIAL NUMBER DESIGNATIONS MODEL NUMBER MODEL NUMBER M E D PRODUC T G ROUP M = Maytag FUEL TYPE E = Electric G = G as PRODUC T D = Dryer S ERIES 5 = L EAP 6 = Oasis 7 = 24" Front L oad 8 = Mid L ine Front L oad 9 = Full S ize Front L oad PRIC E POINT L EVEL (1-9) TRADE PARTNER ID 00 = Branded YEAR OF INTRODUC TION S = 2006, T = 2007 C OL OR C ODE B = Black Q = White ENG INEERING C HANG E 9 7 00 SERIAL NUMBER S ERIAL NUMBER M DIVIS ION = Marion, OH YEAR OF PRODUC TION T = 2006 WEEK OF PRODUC TION
MODEL & SERIAL NUMBER LABEL AND TECH SHEET LOCATIONS The Model/Serial Number label and Tech Sheet locations are shown below.
SPECIFICATIONS 12345 3 1 ! 3 # $ !% 2 4 7 # 3 $ ! ! 14367389 1436738 9 9 " " & ' ( ) *#+ , ! . ! '/ .
123425 67897824 7 12 78 299 2 6 2882 43 12345367489 9 3 4 67762 5 For one year from the date of purchase, when this major appliance is operated and maintained according to instructions attached to or furnished with the product, Maytag Corporation or Maytag Limited (hereafter “ Maytag”) will pay for Factory Specified Parts and repair labor to correct defects in materials or workmanship. Service must be provided by a Maytag designated service company.
123456654172 123489 41723 4 7 Gather the required tools and parts before starting installation. Read and follow the instructions provided with any tools listed here. Flat-blade screwdriver Vent clamps #2 Phillips screwdriver Caulking gun and compound (for installing new exhaust vent) Adjustable wrench that opens to 1" (2.
12345627 89 6 9 975 9 6 97 627 1234546 2 627 4 4 111111 99 4 4! 9 459 64 47 "4 2 # 3$ 4 4 2 679# 4 4 2 9 % & 439 9 45 94 5 '( 673$9 )*+ 3 , 4!2"9 5$9 22 2 4 4 4 9 67 54 45627% -46 9 52 2 2 347 9 5 67 945$# 9 2 627# 2 6 9% 2 6 799 *Most installations require a minimum 5" (12.7 cm) clearance behind the dryer for the exhaust vent with elbow. See Venting Requirements. A location that allows for proper exhaust installation. See Venting Requirements.
345678946 22 68397 7 5 7392 123455262727896 96 946 9468 396 8 4 83 962 8 For cabinet installation, with a door, minimum ventilation openings in the top of the cabinet are required. 12 3456784697 7 6 7 7 4 657 6 2 6 75 794 786 *Required spacing **For side or bottom venting, 0" (0 cm) spacing is allowed. 5 5445 73 7 2345678946 22 68397 7 5 7397 5 546 2 *Required spacing **For side or bottom venting, 0" (0 cm) spacing is allowed.
123456782967 7 4 42 574 55 42 7 6 4 696 A 4-wire power supply connection must be used when the appliance is installed in a location where grounding through the neutral conductor is prohibited. Grounding through the neutral is prohibited for (1) new branch-circuit installations, (2) mobile homes, (3) recreational vehicles, and (4) areas where local codes prohibit grounding through the neutral conductors. This dryer is suitable for mobile home installations.
To supply the required 4 wire, single phase, 120/240 volt, 60 Hz., AC only electrical supply on a separate 30-amp circuit, fused on both sides of the line. A time-delay fuse or circuit breaker is recommended. Connect to an individual branch circuit. 9 9 11For a grounded, cord-connected dryer: This dryer must be grounded. In the event of malfunction or breakdown, grounding will reduce the risk of electric shock by providing a path of least resistance for electric current.
1234567482 9 3457 36 2 9 6 2 76345 763 1234546 1234546 9 9 1 # #9 8 9 92 9 8 69 6 98 9 2 9 6 9 !9 9 " # 989 6 8 9 6 2 $ 9 6 9 6 8 9 % & 69 9 69 9' 6 9 69 69 8 % 8(9 '2 ) 9 %# 99 ! 9 9' 6 !9 9 69 6 # 99 # 9 6 2 $ 9 6 9 # 3 87 9 6 9 # 3 69 8 %# 8 '2 59 987 6 #&69 88 989 6 8 9 6 2 8 9 6 9 86 9 6&* 9* 9
1234567869 5 26 56 2 6 54 5 6 45 2 Unscrew the removable conduit connector and any screws from a 1/2" (1.9 cm) UL listed strain relief (UL marking on strain relief). Put the threaded section of the strain relief through the hole below the terminal block opening. Reaching inside the terminal block opening, screw the removable conduit connector onto the strain relief threads.
123456789 68 49 7 4568 7345677 789 A 4-wire connection is required for mobile homes and where local codes do not permit the use of 3-wire connections. Direct wire cable must have 5 ft (1.52 m) of extra length so dryer can be moved if needed. Strip 5" (12.7 cm) of outer covering from end of cable, leaving bare ground wire at 5" (12.7 cm). Cut 1 1/2" (3.8 cm) from 3 remaining wires. Strip insulation back 1" (2.5 cm). Shape ends of wires into a hook shape.
12 Connect ground wire (green or bare) of direct wire cable to external ground conductor screw. Tighten screw. 2 Loosen or remove center silver-colored terminal block screw. 2 Connect neutral wire (white or center wire) of power supply cord to the center, silver-colored terminal screw of the terminal block. Tighten screw.
When connecting to the terminal block, place the hooked end of the wire under the screw of the terminal block (hook facing right), squeeze hooked end together and tighten screw, as shown. 123456789 4 9 566 3456 89 9 9 2 12 Remove center silver-colored terminal block screw. 32 Remove neutral ground wire from external ground conductor screw.
1234536 72895 2 234 5 1234546 For best drying performance, rigid metal vents are recommended. Rigid metal vent is recommended to avoid crushing and kinking. Flexible metal vents are acceptable only if accessible for cleaning. ! " Flexible metal vent must be fully extended and supported when the dryer is in its final location.
7 432 6 3 7 4 732237 4 An exhaust hood should cap the vent to keep rodents and insects from entering the home. Exhaust hood must be at least 12" (30.5 cm) from the ground or any object that may be in the path of the exhaust (such as flowers, rocks or bushes, snow line, etc.). This dryer can be converted to exhaust out the right side, left side or through the bottom. If you prefer, you may contact your local dealer to have the dryer converted.
12345 2738 3258 The following kits for close clearance alternate installations are available for purchase. Please see the “Assistance or Service” section of this manual to order. Over-the-Top Installation: 12345 43 Side and bottom exhaust installations have a 90 º turn inside the dryer. To determine maximum exhaust length, add one 90º turn to the chart.
12 Examine the leveling legs. Find the diamond marking. 62 Lift and pull forward on the door so that the keyhole clears the screw head. Remove the door. 12 Lay the dryer door on a flat, protected surface with the inside door assembly facing up. Remove the last screw from Step 1. Remove the 2 screws holding the handle to the door. 32 Screw the legs into the leg holes by hand. Use a wrench to finish turning the legs until the diamond marking is no longer visible.
12 Remove the 2 screws that hold the handle bracket to the 89 door. 7 9 2 Peel off the label located on the opposite side of the door opening covering the hinge mounting holes. Apply the label over the original hinge holes. 52 Insert a screw in the second opening from the top of the hinge opening and partially tighten. Hang the door by placing the top hinge keyhole over the second screw head and tighten the screw.
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: Drying will continue from where the cycle was interrupted Press the CYCLE END SIGNAL button to set signal volume to desired level. Press and hold HOLD TO START button until dryer starts (about 1 second). Once an Automatic cycle has started, the Extra Care feature and the Cycle End Signal level can be adjusted. Press the OFF button twice to stop the dryer and clear the settings, allowing you to select another cycle and Dryness Level.
123245 678925 You may follow the progress of your dryer with the drying status indicator lights. 1 5 Select the drying cycle that matches the type of load you are drying. See Automatic preset or Manual preset cycle settings charts. 57 8 When a cycle is first turned on, the Sensing light illuminates until a wet item is detected. In an Automatic Cycle, if a wet item has not been detected within 10 minutes, the Sensing light will turn off and the dryer will shut down.
1234563789 398 8 9 337 6789 8 9 3 3 3 78 46 !3 High 40 12" 6 Medium 34 6#!6 Medium 36 Low 28 Extra Low 22 1 7374 6 632 3 69 6 9 632 9 When you are unable to remove a load of clothes from the dryer as soon as it stops, wrinkles can form. The Extra Care feature periodically tumbles, rearranges and fluffs the load to help reduce wrinkling. Press the Extra Care feature to get up to 120 minutes of heatfree, periodic tumbling at the end of a cycle.
1234567896 123457 Do not allow items to hang over the edge of the rack. 8 4 The Cycle End Signal produces an audible sound when the drying cycle is finished. Promptly removing clothes at the end of the cycle reduces wrinkling. Press and release the (ADJUSTABLE) CYCLE END SIGNAL to adjust the sound level or turn off the signal. Your dryer may vary from the model shown and may not have the same feature as shown here.
COMPONENT ACCESS This section instructs you on how to service each component inside the Epic Front-Loading Gas and Electric Dryers. The components and their locations are shown below.
REMOVING THE ELECTRONIC CONTROL BOARD 5. WARNING Lift the rear of the top cover and slide it back so the tabs clear the catches on the bracket, and remove the cover from the unit. NOTE: Make sure that the tabs slide under the bracket catches when you reinstall the top cover. Cover Flange Tab Under Bracket Catch 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. 1. 2. 3. 4.
8. Remove the following connectors and wires from the electronic control board: 5-wire connector at P1. Red and black wires at relay K1. 7-wire connector at P2. Ribbon cables at P3 and P4. P1 Relay K1 10. Squeeze the two board supports and remove the electronic control board from the bracket. P2 Squeeze Ends Of Supports To Remove Board Electronic Control Board 1/4 inch Screw 9. Ribbon Cables 3-Wire P3 & P4 Connector Remove the 1/4 inch hex-head screw from the electronic control board.
REMOVING THE CONSOLE & THE TOUCHPAD SUBASSEMBLY 6. WARNING Console Bracket Screws 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. 1. 2. 3. 4. 5. Remove the two screws from the console bracket. Unplug dryer or disconnect power. Turn off gas supply to dryer. Pull the dryer away from the wall and remove the top cover (see steps 4 and 5 on page 4-2 for the procedure).
9. Place the console assembly on a padded work surface with the bracket side facing up, as shown in step 10. 10. Remove the four hex-head screws from the console bracket and remove the bracket. 11. Remove the selector knob. 12. Remove the touchpad subassembly from the console by unsnapping the six catches. Use your thumb or a screwdriver.
REMOVING THE DOOR SWITCH 5. WARNING 6. 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. 1. 2. 3. 4. Push the wire holder out of the chassis hole. Press a screwdriver blade against the locking arms on each side of the door switch, (from behind the cutout), and push the switch and wiring harness out. Screwdriver Removal Unplug dryer or disconnect power. Turn off gas supply to dryer.
REMOVING THE THERMAL FUSE, THERMISTOR, DRIVE MOTOR, & BELT SWITCH 5. WARNING 6. Remove the hex-head screw from the lint duct bracket and remove the bracket. Remove the three hex-head screws from the lint duct and remove the duct. Lint Duct Screws 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. 1. 2. 3. Unplug dryer or disconnect power. Turn off gas supply to dryer.
8. To remove the drive motor: a) Remove the wires from the thermal fuse and thermistor terminals (see the photo in step 7 on page 4-7). b) Reach around behind the drive motor and push the idler wheel arm to the left, then remove the tension, and remove the belt from the idler pulley. 7/16 inch OpenEnd Wrench Remove Belt From Idler Pulley Blower Wheel Push To Left Remove 1/2 inch Drive Refer to the photos at the top of the right column for the next two steps.
g) Lift the top locking tab of the motor harness plug and pull the top pins away from the motor connector, then release the bottom tab, and remove the plug. Top Locking Tab 9. To remove the belt switch: a) Remove the 3/8 inch hex shoulderwasher screw from the idler pulley assembly and remove the assembly. Motor Harness Plug 3/8 inch Hex Shoulder Washer Screw Idler Pulley Assembly b) Remove the two screws from the belt switch and remove it from the motor.
REMOVING THE HEATER, THE HIGH-LIMIT THERMOSTAT, & THERMAL CUTOFF (ELECTRIC DRYERS ONLY) 3. WARNING Heater Shield 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. 1. 2. Remove the hex-head screw from the heater shield and remove the shield. Screw Unplug dryer or disconnect power. Remove the two hex-head screws from the bottom flange of the toe panel.
5. To remove the high-limit thermostat or the thermal cutoff: a) Disconnect the wires from the highlimit thermostat or the thermal cutoff. b) Remove the two hex-head screws.
REMOVING THE BELT, DRUM, & ROLLERS 7. 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. 1. 2. 3. 4. 5. 6. Disconnect the 3-wire moisture sensor connector from the main harness connector. Moisture Sensor Connector Unplug dryer or disconnect power. Turn off gas supply to dryer.
11. To remove the belt and drum: a) Grasp the sides, lift, and pull the front panel forward so that the top screws are free of the keyhole slots. Lower the panel so that the drum sits on the components inside the cabinet, and slide the front panel and rollers away from the drum. c) Lift the drum and remove it from the unit. Keyhole Slot REASSEMBLY NOTE: Use the following illustration as a guide when installing a new belt. b) Slide the belt off the drum.
DRUM INSTALLATION NOTE: Be sure to position the drum with the clip toward the rear when you reinstall it. Front NOTE: There are two rollers on the front panel and two on the rear panel, as shown below. Front Panel (inside) Rear Panel (inside) Position Clip Towards Rear Front Rollers Rear Rollers 12. To remove a roller: a) Pry the sides of the triangular ring out of the groove in the roller support with a small screwdriver.
REMOVING THE DRUM LIGHT SOCKET 5. WARNING 6. 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. 1. 2. 3. 4. Drum Light Holder Screw Bulb Unplug dryer or disconnect power. Turn off gas supply to dryer. Open the dryer door. Remove the screw from the drum light lens and remove the lens. 7. Drum Light Lens Remove the bulb from the drum light socket.
8. Squeeze the locking arms and remove the socket from the drum light holder.
REMOVING THE MOISTURE SENSOR 5. WARNING Remove the three inside screws from the outlet grille. Screw 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. 1. 2. 3. 4. Moisture Sensor Unplug dryer or disconnect power. Turn off gas supply to dryer. Open the dryer door and remove the lint filter screen. Remove the two front screws from the outlet grille. 6.
REMOVING THE BURNER ASSEMBLY, FLAME SENSOR, AND HIGH-LIMIT THERMOSTAT (GAS DRYERS ONLY) WARNING Burner Assembly 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. 1. 2. 3. 4. Unplug dryer or disconnect power. Turn off gas supply to dryer. Remove the two hex-head screws from the bottom flange of the toe panel. Pull the panel out at the bottom, pull down, and remove the panel.
b) Disconnect the following wires from the burner assembly: • Blue and white wires from the flame sensor terminals. • 2-wire connector from the ignitor. • 2-wire and 3-wire connectors from the coil assembly. Flame Sensor Wht & Blu Wires e) Remove the two hex-head screws from the burner mounting bracket, and pull the burner assembly out of the unit.
g) To remove the coils from the burner assembly, remove the two screws from the bracket, and lift the two coils off the cores. b) Remove the hex-head screw from the flame sensor and remove the sensor from the venturi. Screw Bracket Screws Flame Sensor 6. Coils To remove the high-limit thermostat: a) Remove the venturi (see step 5). b) Disconnect the two wire connectors from the high-limit thermostat. c) Remove the two hex-head screws from the high-limit thermostat and remove the thermostat.
COMPONENT TESTING Before testing any of the components, perform the following checks: • Control failure can be the result of corrosion on connectors. Therefore, disconnecting and reconnecting wires will be necessary throughout test procedures. • All tests/checks should be made with a VOM or DVM having a sensitivity of 20,000 ohms-per-volt DC, or greater. • Check all connections before replacing components, looking for broken or loose wires, failed terminals, or wires not pressed into connectors far enough.
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. DRIVE MOTOR 6. Touch one ohmmeter test lead to the blue motor wire connector, and the other test lead to connector pin 3 (violet wire). The meter should indicate between 2.4 and 3.8 Ω (start winding). 7. If either resistance is much larger than 4 Ω, replace the motor.
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. THERMAL FUSE Refer to page 4-7 for the procedure for servicing the thermal fuse. Electric Dryers: The thermal fuse is wired in series with the drive motor. If the thermal fuse opens, 91°C (196°F), power to the motor is turned off. A centrifugal switch on the motor also opens the heater circuit.
THERMISTOR 8. Hold a glass bulb thermometer capable of reading from 32°C to 82°C (90°F to 180°F) in the center of the exhaust outlet. Measure the exhaust temperatures with the heater on and off. The correct exhaust temperatures for the various settings are shown in the following chart. Refer to page 4-7 for the procedure for servicing the thermistor. The thermistor monitors the exhaust temperature.
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. THERMAL CUTOFF (ELECTRIC DRYERS ONLY) Refer to page 4-10 for the procedure for servicing the thermal cutoff. The thermal cutoff is a non-resettable device. The cutoff temperature is 178°C (352°F). If the dryer does not heat and there is 240 VAC to the dryer, perform the following test. Thermal Cutoff High-Limit Thermostat 1.
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. DOOR SWITCH Resistance Tests Refer to page 4-6 for the procedure for servicing the door switch. 1. Go into the Diagnostic Test mode on page 62. The door switch function is verified with a beep each time the door is opened and closed, and an alpha numeric code appears in the display (“0E”, “0g”, “1E”, or “2E”). 2.
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. GAS BURNER COILS BURNER IGNITOR Refer to page 4-18 for the procedure for servicing the gas burner assembly. 1. Unplug dryer or disconnect power. 2. Turn off gas supply to dryer. 3. Disconnect the wire connectors from the coil terminals. 4. Set the ohmmeter to the R X 100 scale. 5. Touch the ohmmeter test leads to the 2-terminal coil.
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. FLAME SENSOR HIGH-LIMIT THERMOSTAT Refer to page 4-18 for the procedure for servicing the flame sensor. 1. Unplug dryer or disconnect power. 2. Turn off gas supply to dryer. 3. Disconnect the wire connectors from the flame sensor terminals. 4. Set the ohmmeter to the R X 1 scale. 5.
DIAGNOSTICS AND TROUBLESHOOTING DIAGNOSTICS WARNING IMPORTANT Electrostatic Discharge (ESD) Sensitive Electronics ESD problems are present everywhere. ESD may damage or weaken the electronic control board. The new control assembly may appear to work well after repair is finished, but failure may occur at a later date due to ESD stress. • Use an anti-static wrist strap. Connect wrist strap to green ground connection point or unpainted metal in the appliance.
DISPLAY FAULT/ERROR CODES DISPLAY DESCRIPTION EXPLANATION AND RECOMMENDED PROCEDURE “PF” flashes to indicate that a power failure occurred while PF Power failure the dryer was running. Press HOLD TO START to continue E1 Thermistor open “E1” flashes if the thermistor is open. See TEST #3a. E2 Thermistor shorted “E2” flashes if the thermistor has shorted. See TEST #3a. E3 User interface or software mismatch “E3” flashes when there is a keyswitch or software mismatch.
Diagnostic: Console switches and indicators. Pressing each button, or turning the cycle selector to each cycle, should cause a beep tone and control one or more LEDs. Pressing the Hold To Start button will also control the motor and heater, while the 2-digit display will indicate a software project identification number. Diagnostic: Moisture Sensor Locate the two metal strips on the face of the lint screen housing. Bridge these strips with a wet cloth or a finger.
TROUBLESHOOTING TROUBLESHOOTING GUIDE PROBLEM POSSIBLE CAUSE / TEST NOTE: Possible Cause/Tests MUST be performed in the sequence shown for each problem. WILL NOT POWER UP. 1. Supply connection. See TEST #1. (No response when Control 2. Check harness connections. On button is pressed.) 3. Console electronics and housing. See TEST #5. WILL NOT START CYCLE WHEN START BUTTON IS PRESSED. WILL NOT SHUT OFF WHEN EXPECTED. 1.
• If there is no continuity, replace the power cord and test the dryer. • If there is continuity, go to step b. b) In a similar way, check which terminal of the plug is connected to the left-most contact on the terminal block, and make a note of it. This will be L1 (black wire) in the wiring diagram. • When this is found, go to step c. • If neither of the plug terminals have continuity with the left-most contact of the terminal block, replace the power cord, and test the dryer.
7. TEST #2: MOTOR CIRCUIT TEST This test will check the wiring to the motor and the motor itself. The following items are part of this system: • Harness/connection • Thermal fuse (electric dryers only) • Belt/belt switch • Drive motor • Door switch • Electronic control board 1. 2. Unplug dryer or disconnect power. Access the electronic control board and measure the resistance across P1-3 and P1-4. • If resistance across P1-3 and P1-4 is in the range of 1 to 6 ohms, replace the electronic control board.
• If belt switch is okay and there is still an open circuit, check and repair the wiring harness. • If the Start winding is in question and the resistance is much greater than 4 ohms, replace the motor. 3. 9. Door switch problems can be found using the Diagnostic Tests on page 6-2; however, if this was not done, the following (step 10) can be done without applying power to the dryer. 10.
4. Heat will not shut off: 1. Unplug dryer or disconnect power. 2. Use an ohmmeter, and touch the test leads to electronic control board points P2-5 (red/white wire) and P2-6 (black wire). • If 6 to 7 kΩ are measured, replace the electronic control board. • If the resistance is much greater than 7 kΩ, replace the thermistor. Electric Dryers Only: a) Connect the ohmmeter test probes to the red wires at the thermal cutoff and the heater. • If the resistance is approximately 10 Ω, proceed to step c.
4. If E1 or E2 does not flash in the display, the connections to the thermistor are good. Therefore, check the thermistor’s resistance value at any or all of the temperature levels in question, using the Timed Dry Cycle, and the following process: Hold a glass bulb thermometer capable of reading from 32⋅ to 82⋅C (90⋅ to 180⋅F) in the center of the exhaust outlet. The following table shows the correct exhaust temperatures. TEMP. SETTING TEMPERATURE 5. TEST #3b: THERMAL FUSE TEST 1.
TEST #3c: THERMAL CUTOFF TEST (ELECTRIC DRYERS ONLY) If the dryer does not produce heat, check the status of the thermal cutoff. 1. Unplug dryer or disconnect power. 2. Access the thermal cutoff by first removing the toe panel. 3. Use an ohmmeter and check the continuity across the thermal cutoff. • If the ohmmeter indicates an open circuit, replace the failed thermal cutoff and high-limit thermostat. In addition, check for failed heat element, or blocked or improper exhaust system.
8. Measure the resistance across the pins of the mating connector. If a small resistance is measured, replace this harness. 9. Measure the resistance across each of the outermost contacts and the center pin (ground). • If a resistance less than infinity is measured, replace the wire harness and moisture sensor. 10. If moisture sensor diagnostic test passes, check the thermistor (perform Test #3a, page 6-8).
Checking The Button Functions Before replacing the electronic control board, check for proper button function as follows: • Unplug dryer or disconnect power. • Disconnect the ribbon cables at P3 and P4 on the electronic control board. The illustration below shows the connector locations. Using an ohmmeter, touch the meter test leads to the ribbon cable connector pin locations indicated in the table. Press the associated button and measure resistance.
Checking The Rotary Cycle Selector Using the following table, check the resistance at each cycle setting. • When using a digital meter, touch the “+” ohmmeter test lead to P1-14, and leave it there during the tests. Touch the other test lead to the test points indicated in the chart. • When using an analog meter, touch the “–” ohmmeter test lead to P1-14, and leave it there during the tests. Touch the other test lead to the test points indicated in the chart.
— NOTES — 6-14
WIRING DIAGRAMS ELECTRIC DRYER L1 LINE BK W NEUTRAL 120 VOLTS NEUTRAL TERMINAL LINKED TO CABINET BR DL BK NC COM DRUM LAMP BK DOOR P1-5 L1 NEUTRAL P3 USER INTERFACE MOTOR (ACTIVE OVERLAY or ALTERNATE TECHNOLOGY) P1-1 BU P1-3 5M MOIST RTN MODEL HEATER RELAY N.O. HEATER +V MODEL RTN (0.250 TERMINAL) COM (0.250 TERMINAL) TEMP. HEATER RTN TEMP RTN N.C. MAIN 2.4 -3.6 START 2.4 -3.
— NOTES — 7-2
PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION SOURCES IN THE UNITED STATES: FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL: FOR WHIRLPOOL PRODUCTS: 1-800-253-1301 FOR KITCHENAID PRODUCTS: 1-800-422-1230 FOR ROPER PRODUCTS: 1-800-447-6737 FOR MAYTAG PRODUCTS: 1-800-688-9900 FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL: THE TECHNICAL ASSISTANCE LINE: 1-800-253-2870 HAVE YOUR STORE NUMBER READY TO IDENTIFY YOU AS AN AUTHORIZED SERVICER FOR LITERATURE ORDERS: PHONE: 1-800-851-4605 FOR