
TECHNICAL EDUCATIONJOB AID 8178644ML-7ELECTRIC MODELS: MED6300TQ, MED6400TB, MED6400TQGAS MODELS: MGD6300TQ, MGD6400TB, MGD6400TQELECTRIC & GAS DR
2-2*Most installations require a minimum 5˝ (12.7 cm) clearance behind the dryer for the exhaust vent with elbow. See “Venting Re-quirement
6-265. Access the machine control electronics. See Accessing & Removing the Electronic Assemblies. Remove the connector P13 from the ci
6-27No beep sound is heard:1. Perform steps in Accessing & Removing the Electronic Assemblies, and visually check that the P5 connector
6-28REMOVING THE FRONTPANEL/DRUM ASSEMBLY1. Unplug dryer or disconnect power.2. Remove the lint screen.3. Remove the two screws holding the
6-291. Unplug dryer or disconnect power.2. Remove two screws from the rear of the console assembly. Pull console towards front of dryer to hin
6-30REMOVING THE BACK PANEL1. Unplug dryer or disconnect power.2. Remove the cover plate screw and cover plate. See Figure 18.3. Remove the eig
7-1WIRING DIAGRAMS & STRIP CIRCUITSElectric DryersWIRING DIAGRAMRN.O.COMR-WBKNCHIGH LIMITTHERMOSTAT180°F (82°C)HEATER2700 WCOMBKHEATER2700 WRVP8-2
7-2STRIP CIRCUITSDRIVE MOTORHEATERMOISTURE SENSORCENTRIFUGAL SWITCH2M1M5M6M3MWDOORSWITCHTBUBUWP8-4P9-1THERMAL FUSE196°F 91°C( )4MDRIVE MOTOR1/3 H.P.MA
7-3Gas DryersWIRING DIAGRAMP8-2GNDL1 LINE – BKBUP9-1P8-5MOTORMTR CSMOIST.MOIST RTNMODELMODEL RTNP14-5P14-3P14-6R-WR-WBK-WHEATERRELAYN.O.COMRP9-2BKL1W
7-4STRIP CIRCUITSHEATER (GAS VALVE)L1 LINE – BKN.O.COMBKHEATERRELAYP14-3P14-6R-WR-WCENTRIFUGAL SWITCH5M6M3MBUEXHAUST THERMISTOR10k Ω2M1MR3V1V21IG IGR5
7-5— NOTES —
2-3Additional spacing is required if you ex-haust out the rear of the dryer to either the right or left side.•*Required spacingA. Recessed areaB
7-6— NOTES —
IN THE UNITED STATES:FOR PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION CALL:FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL:THE TECHNICAL
2-4ELECTRICAL REQUIREMENTS - U.S.A. ONLYElectric Models OnlyIt is your responsibilityTo contact a qualified electrical installer.To be sure that t
2-5If your outlet looks like this:Then choose a 4-wire power supply cord with ring or spade terminals and UL listed strain relief. The 4-wire p
2-6Electrical Shock HazardPlug into a grounded 4 prong outlet.Failure to do so can result in death or electrical shock.ELECTRICAL REQUIREMENTS - CANAD
2-7WARNINGDIRECT WIREA. Strain relief tab pointing upB. Hole below terminal block openingC. Clamp sectionD. Strain relief tab pointing downABCDFire Ha
2-8Put power supply cord through the strain relief. Be sure that the wire insulation on the power supply cord is inside the strain relief
2-94-wire connection: Power supply cordIMPORTANT: A 4-wire connection is required for mobile homes and where local codes do not permit the use of 3-
2-104-wire connection: Direct WireIMPORTANT: A 4-wire connection is required for mobile homes and where local codes do not permit the use of 3-wire
2-113. Connect ground wire (green or bare) of direct wire cable to external ground con-ductor screw. Tighten screw.5. Tighten strain relief scr
- ii -FORWARDThis Maytag Job Aid, “Bravos™ Electric & Gas Dryers” (Part No.8178644), provides the In-Home Service Professional with information on
2-12When connecting to the terminal block, place the hooked end of the wire under the screw of the terminal block (hook facing right), squeeze hooked
2-13Optional 3-wire connectionUse for direct wire or power supply cord where local codes do not permit connect-ing cabinet-ground conductor
2-14GROUNDING INSTRUCTIONSFor a grounded, cord-connected dryer: This dryer must be grounded. In the event of malfunction or breakdown, gro
2-15Explosion HazardUse a new CSA International approved gas supply line.Install a shut-off valve.Securely tighten all gas connections.If connected to
2-16GAS SUPPLY CONNECTION REQUIREMENTSUse an elbow and a 3/8˝ flare x 3/8˝ NPT adapter fitting between the flexible gas con-nector and the dryer gas p
2-17VENTING REQUIREMENTSWARNINGFire HazardUse a heavy metal vent.Do not use a plastic vent.Do not use a metal foil vent.Failure to follow these instru
2-18Elbows45° elbows provide better airflow than 90° el-bows. Good BetterClampsUse clamps to seal all joints.Exhaust vent must no
2-19PLAN VENT SYSTEMRecommended exhaust installationsTypical installations vent the dryer from the rear of the dryer. A. DryerB. ElbowC. WallD
2-20Number of 90º turns or elbowsType ofventBox or Louvered hoodsAngledhoods0 Rigid metalFlexible metal64 ft (20 m)36 ft (11 m)58 ft (17.7 m)28 ft (8.
2-21INSTALL VENT SYSTEM1. Install exhaust hood. Use caulking com-pound to seal exterior wall opening around exhaust hood.2. Connect vent to e
- iii -TABLE OF CONTENTSPageGENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-22A combination of pipe fittings must be used to connect the dryer to the existing gas line. Shown is a recommended connection. The conn
2-23REVERSE DOOR SWINGYou can change your door swing from a right-side opening to a left-side opening, if de-sired.1. Place a towel or soft c
2-24Reinstall the door1. Remove the 4 screws and 2 hinges from the dryer door.2. Replace the 4 screws in the same holes.3. Remove the 4 screws f
2-25COMPLETE INSTALLATION1. Check that all parts are now installed. If there is an extra part, go back through the steps to see which step was skipp
2-26— NOTES —
3-1Fire HazardNo washer can completely remove oil.Do not dry anything that has ever had any type of oil on it (including cooking oils).Items containin
3-2STARTING THE DRYERThis manual covers several different models. Your dryer may not have all of the cycles and features described.Follow these basic
3-3NOTE: During a Timed Cycle, you can change the settings for Time, Temp, the WRINKLE PRE-VENT™ setting and the End of Cycle Signal.5. (OPTIONAL STE
3-4STATUS LIGHTSFollow the progress of your dryer with the dry-ing Status indicator lights.SENSINGIn a Sensor Dry Cycle, the Sensing light illumi
3-5Sensor Dry Preset Cycle SettingsSensor Dry CyclesLoad TypeTemperatureHEAVY DUTYHeavyweight mixed loads, cottons, jeansHighNORMALCorduroys, work clo
- iv -PageDIAGNOSTICS & TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Electric Dryers . . .
3-6AIR FLUFFUse the Air Fluff Modifier for items that require drying without heat such as rubber, plastic and heat-sensitive fabrics. This tab
3-72. Select the new Modifier and/or Options.3. Press START to continue the cycle.NOTE: If you happen to press PAUSE/CAN-CEL twice, the program clear
3-8NOTE: The rack must be removed for normal tumbling. Do not use the Sensor Dry cycle with the drying rack.To use the drying rack:1. Open dryer door
3-9DRYER CAREWARNINGExplosion HazardKeep flammable materials and vapors, such as gasoline, away from dryer.Place dryer at least 18 inches (46 cm) above
3-10VACATION AND MOVING CAREVACATION CAREOperate your dryer only when you are at home. If you will be on vacation or not using your dryer for an exten
3-11TROUBLESHOOTINGDRYER OPERATIONDryer will not runHas a household fuse blown, or has a circuit breaker tripped? There may be 2 household fuses or c
3-12Explosion HazardKeep flammable materials and vapors, such as gasoline, away from dryer.Place dryer at least 18 inches (46 cm) above the floor for a
3-13Is the automatic cycle ending early? The load may not be contacting the sensor strips. Level the dryer. Change the dry-ness level setting
3-14— NOTES —
4-1Electric Dryer ComponentsCOMPONENT ACCESSCOMPONENT LOCATIONSThis section instructs you on how to service each component inside the Bravos™ Electric
1-1GENERALDRYER SAFETYYour safety and the safety of others are very important.We have provided many important safety messages in this manual and on yo
4-2REMOVING THE ENCODER, USER INTERFACE BOARD, AND MACHINE CONTROLWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts an
4-39. To remove the encoder, lift the lock-ing tab, and turn the encoder to the left (counterclockwise) as far as it will go. Lift the
4-4c) Push the clip on the back, and slide the machine control housing to the left and off the mounting bracket and re-move the assembly. Mac
4-5REMOVING THE CABINET FRONT AND DOOR SWITCHWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before ope
4-66. To remove the door switch:a) Remove the cabinet front (see step 5).b) Unhook the door switch wires from the cabinet front clips.c) Press in on
4-7REMOVING THE BELT, DRUM, & ROLLERSWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operati
4-8b) Pull the drum out the front of the cabi-net and remove it.8. To remove a front or rear bulkhead roller, push the triangular clip of
4-9REMOVING THE DRIVE MOTOR AND BELT SWITCHWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before opera
4-10 Longer Leg Press Down On Drive Motor Clampc) Remove the front and rear clamps from the drive motor and its mounting bracket. To remove a clamp,
4-11REMOVING THE THERMAL FUSE & EXHAUST THERMISTORWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels bef
1-2MODEL & SERIAL NUMBER DESIGNATIONSMODEL NUMBERSERIAL NUMBERSERIAL NUMBER M U 41 10200MANUFACTURING SITEM = Marion, OHYEAR
4-12REMOVING THE HIGH-LIMIT THERMOSTAT AND THERMAL CUTOFF (TCO) (GAS MODELS ONLY)WARNINGElectrical Shock HazardDisconnect power before servicing.Repla
4-13REMOVING THE THERMAL CUTOFF (TCO), HEATER, AND INLET THERMISTOR / HIGH-LIMIT THERMOSTAT (ELECTRIC MODELS ONLY)WARNINGElectrical Shock HazardDiscon
4-14d) Remove the two hex-head screws from the heater assembly and remove the assembly. Heater Assembly Screws Heater Assembly e) Using a flat
4-156. To remove the burner assembly:a) Disconnect the gas line from the dryer.b) Disconnect the following wire connec-tors from the burner assembly
4-16 Burner Assembly Ignitord) Remove the two 5/16˝ hex-head screws from the burner bracket.e) Pull the burner assembly forward, un-hook the bracket t
4-17REMOVING THE MOISTURE SENSOR AND METAL OXIDE VARISTORS (MOVS)WARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and
4-18 Moisture Sensor Strip Terminal Connectorse) Disconnect the two wires from the termi-nals of the moisture sensor strips.f) Unlock and disconnect
4-19REMOVING THE DRUM LIGHT ASSEMBLYWARNINGElectrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Fa
4-20— NOTES —
5-1COMPONENT TESTINGBefore testing any of the components, perform the following checks:The most common cause for control failure is corrosion on conne
1-3MODEL & SERIAL NUMBER LABEL &TECH SHEET LOCATIONSThe Model/Serial Number Label and Tech Sheet locations are shown below.Model/Serial Number
5-2Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec
5-3FLAME SENSORRefer to page 4-15 for the procedure for ac-cessing the flame sensor.1. Unplug dryer or disconnect power.2. Turn off gas supply to dr
5-4BURNER IGNITORBurner Ignitor2-Wire ConnectorRefer to page 4-15 for the procedure for ac-cessing the gas burner assembly.1. Unplug dryer or disconn
5-5Electrical Shock HazardDisconnect power before servicing.Replace all parts and panels before operating.Failure to do so can result in death or elec
5-6BELT SWITCH (N.O.) Belt Switch ActuatorRefer to page 4-9 for the procedure for ac-cessing the belt switch.1. Unplug dryer or disconnect po
6-1DIAGNOSTICS & TROUBLESHOOTINGElectric DryersDISPLAY DESCRIPTION EXPLANATION / RECOMMENDED PROCEDUREPFPowerFailurePF flashes to indicate that a
6-2DIAGNOSTIC GUIDEBefore servicing, check the following:Make sure there is power at the wall out-let.Has a household fuse blown or circuit brea
6-3DIAGNOSTIC: Door SwitchOpening the door should cause a beep and an alphanumeric number to be displayed. Closing the door should cause a b
6-4DIAGNOSTIC: Displaying Inlet Air FlowUsed to display the airflow value at the inlet of the heater box being measured by the ma-chine control.After
6-5TROUBLESHOOTING GUIDESome tests will require accessing compo-nents. See Figure 1 for component locations.PROBLEM POSSIBLE CAUSE / TESTNOTE: Po
1-4SPECIFICATIONSMODEL NUMBERS ELECTRIC MED6300TQ MED6400TB, Q GAS MGD6300TQ MGD6400TB, QPRIMARY FEATURES CAPACITY (CU. FT.)7 7 CAPACITY
6-68. Check for continuity between the neutral (N) terminal of the plug and P8-3 (white wire) on the machine control board.If there is continuity, g
6-76. Remove the white connector from the drive motor switch. See Figure 6.7. Using Figure 7, check for the resistance values of the motor
6-8TEST #4 HeaterThis test is performed when either of the fol-lowing situations occur:Dryer does not heatHeat will not shut offThis test checks the c
6-99. If no open circuit is detected, remove the P4 connector, then measure the resistance between P4-3 (red wire) and P4-6 (red wire) at the
6-10If the thermistor resistance does not agree with table, replace the exhaust thermistor.If the thermistor resistance checks agree wi
6-11TEST #4c Thermal Cut-OffIf the dryer does not produce heat, check the status of the thermal cut-off.1. Unplug dryer or disconnect power.2. Acc
6-126. Measure the resistance across the out-ermost contacts of the sensor connector that includes the two MOVs.If a small resistance is measur
6-13Some buttons do not light indicators:1. Perform steps in Accessing & Removing the Electronic Assemblies, and visually check the user
6-14Door SwitchWire HarnessConnectorFront Cover Screw(Inside Cabinet)Top ClipsFigure 12. Slowly rotate top backwardsand support.6. Slowly rotate t
6-15REMOVING THE USER INTERFACE ASSEMBLY3. Remove the wire connections from the user interface assembly, including the P5 ribbon cable. See Figure 14
2-1INSTALLATION INFORMATIONINSTALLATION INSTRUCTIONSTOOLS AND PARTS Gather the required tools and parts before starting installation. Read an
6-16Gas DryersDISPLAY FAULT CODESThe fault codes below would be indicated when attempting to start a drying cycle or af-ter activating the diagn
6-17DIAGNOSTIC GUIDEBefore servicing, check the following:Make sure there is power at the wall out-let.Has a household fuse blown or circuit bre
6-18DIAGNOSTIC: Door SwitchOpening the door should cause a beep and an alphanumeric number to be displayed. Closing the door should cause a
6-19DIAGNOSTIC: Displaying Line VoltageUsed to display the line voltage currently be-ing measured by the machine control:After all saved fault cod
6-20PROBLEM POSSIBLE CAUSE / TESTNOTE: Possible Cause/Tests MUST be performed in the sequence shown foreach problem.WON’T POWER UP.(No response whenbu
6-216. In a similar way, check the continuity be-tween the L1 terminal of the plug and P9-2 (black wire) on the control board. See Fig-ure 16.If t
6-225. Remove the white connector from the drive motor switch. See Figure 7.6. Using Figure 8, check for the resistance values of the moto
6-23With the door properly closed, the ohm-meter should indicate a closed circuit (0–2 ohms).If not, replace the door switch assem-bly. See Figur
6-243. If after 60 seconds, F-22 or F-23 flashes in the display and the dryer shuts off, the thermistor or wire harness is either open or shorted.Un
6-251 to 2 1365 ± 251 to 3 560 ± 254 to 5 1220 ± 50123 45Terminals ResistanceThis test is performed when an automatic cy-cle stops too soon, or run
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