16026881 - Amazon Web Services
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1. 2 Heater resistance 10 Blue amp Blue wire If resistance is infinity replace Heater Troubleshooting Procedures WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power 16026881 September 2006 RPL 16026540 2006 Maytag Services 6 125V 10A 120V 10W E12 Function 1M 2M 3M 5M 6M Start Run Contact closed 160 C 25A thermal cut off 127 99 C 25A HI limit 240V 5300W Heating Element Electric Measure resistance of the following terminal 1 Door switch knob open Terminal COM NC 1 3 Terminal COM NO 1 2 lt 1 2 Door switch push On Terminal COM NC 1 3 Terminal COM NO 1 2 lt 1 Light resistance 80 100 Violet amp gray Belt Cut off S W Lever open Resistance value lt 1 Lever push Resistance value Motor Electronic amp GAS Contacts Centrifugal Switch Motor Radiant Sensor Gas Resistance across terminal indicates a closed switch TH2 Hi Limit Gas Less than 1 ohm Troubleshooting Procedures WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power September 2006 16026881 2006 Maytag Services RPL 16026540 7 240VAC Heater Input Blue amp Black wire on Heater Relay 12. 20VAC Motor Input Brown 1P on Motor relay amp White wire HEATER MOTOR CN3 CN6 123 45 Gas Valve Sensor Bars amp temperature sensor check Sensor Bars Disconnect harness and test Pink wire Pin 4 to Orange wire Pin 5 Approx infinity without laundry load approx 190 10 with wet clothes Cycling Thermostat Disconnect harness and test Blue wire Pin 2 to Red wire Pin 6 Approx 10 K at 25 C 77 F Check across terminals 1 and 3 Booster Coil 550 ohms Check across terminals 1 and 2 Holding Coil 1350 ohms Check across terminals 2 and 3 Both coils in series 1900 ohmsCheck across terminals 4 and 5 Secondary Coil 1300 ohms Wiring Schematic WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power 16026881 September 2006 RPL 16026540 2006 Maytag Services 8 Wiring Schematic WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power September 2006 9 16026881 2006 Maytag Services RPL 16026540
3. 27 Domestic Dryer Technical Information September 2006 16026881 2006 Maytag Services RPL 16026540 1 MDE6700A MDG6700A Due to possibility of personal injury or property damage always contact an authorized technician for servicing or repair of this unit Refer to Service Manual 16026446 for detailed installation operating testing troubleshooting and disassembly instructions CAUTION All safety information must be followed as provided in Service Manual 16026446 WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power Troubleshooting Procedures WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power September 2006 16026881 2006 Maytag Services RPL 16026540 2 Will Not Run Will not start or run All wires are hooked up to their corresponding terminals Dryer is plugged in Blown fuse or circuit breaker Door switch functional door closed Check for error code 3 See Table for code definition Start Pause rotary selector dial functional Control Board operational Drive motor functional Check motor winding resistance 2 88ohms between pin 3 and 4 3 5ohms between pin 4 and 5 Motor runs tumbler will not turn Belt off or broken damaged Idler tension spring too weak or
4. d Temperature Keys for 3 seconds or until 3 beeps are heard The machine will now be in Service Mode Upon entry into Service Mode the Sensor Bar Touch Data is to be displayed Exit Service Mode Press the OFF key to exit Service Mode or repeat the Chime and Temperature sequence Diagnostic Tests The following table lists the various tests available while in the Service Mode Before advancing to the next test the current test running must be terminated Press the following keys to access Key Press Special Test Function Wrinkle Prevent Displays d Then rotate the Cycle Selector Knob Display list of diagnostic codes To sequence thru the diagnostic and help codes Temperature Key Display software revision number Start Pause Start or pause cycle running but remain in diagnostic mode Display the number of cycles ago the diagnostic code occurred System Check Mode While in Service Mode pressing the Time and Wrinkle Prevent keys for 3 seconds will put the dryer into the System Check mode and in will display The following table lists the various functions based on the keys being pressed System Check Mode Table Key Pressed Function Performed Start Pause rotary selector dial Cycles the motor on off Rotate the Cycle Selector Knob to Delicates LED s and 7 segment display flash Rotate the Cycle Selector Knob to Sensor Dry View current cycle temperature in Celsius Rotate the Cycle Se
5. er Troubleshooting Procedures WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power September 2006 16026881 2006 Maytag Services RPL 16026540 3 Will Not Shut Off Check Membrane Pad Check Electronic Control Board Short in sensor circuit Troubleshooting the electronic control circuit Check for miswiring of the electrical connector at the electronic control board Noisy and Or Vibration Thumping Check for loose tumbler baffle rear tumbler roller s worn or misaligned out of round tumbler or high weld seam on tumbler Ticking Check for loose wire harness or object caught in blower wheel area Scraping Check for front or rear bulkhead felt seal out of position or worn tumbler front bearings Roaring Check for blower wheel rubbing on blower housing or bad motor bearings Popping or squealing sound Check for a sticky or frayed belt Service Mode This mode provides Service Personnel the ability to verify the operation of the dryer The Service Mode can be implemented at any time including the middle of a dry cycle While in the Service Mode the Technician can start special diagnostic tests such as a System Check Mode LED Switch Check Display Software version number and display diagnostic help code listings Enter Service Mode Dryer must be on before Service Mode can be entered Press Chime an
6. lector Knob to Wrinkle Control Segment display is 1 for sensor bar short 0 for sensor bar open Rotate the Cycle Selector Knob to Time Dry View current cycle temperature in Fahrenheit Troubleshooting Procedures WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power 16026881 September 2006 RPL 16026540 2006 Maytag Services 4 LED Switch Check While in Service Mode pressing the Chime and Wrinkle Prevent keys for 3 seconds will start a LED Switch Test To exit the test at any point press the same keys again for 3 seconds or press the OFF key to exit Service Mode Perform the check by pressing the keys which toggle the LED s on and off All switch pads must be pressed within 5 minutes for this test to pass PA will be displayed for five 5 seconds once all switch pads have been pressed and this test is completed Following 10 seconds of inactivity at any point the test will exit without any display The Power Off switch pad must be pressed twice within thirty 30 seconds to cancel this test Switch Action Wrinkle Prevent Press once Chime Press once Adjust Time Press once Time Press four times Temperature Press twice Dryness Level Press twice Selector Knob Rotate 1 position Start Pause Press once Off Press once Diagnostic Codes The Diagnostic Codes are identified when the se
7. ry Cycle Check for Running dryer with no wet clothes in sensor dry cycle Display Fault Error Codes Display Description Trigger Action Taken tS Dryer Thermistor Short Sensed The Thermistor resistance is very low Check for Clogged lint screen Restricted vent system Check Thermistor resistance Check for diagnostic code 1 do Door Open Running the dryer with door open Check for Close the door and run the dryer Loose or open wire terminals in Door Sense circuit Check for diagnostic code 3 FE Power source frequency Error Invalid power source frequency Check for Not using regular power source frequency Invalid power frequency sense circuit dC Door Circuit Failure Invalid state for more than 256 milliseconds Check for Loose or open wire terminals in Door Sense circuit Check for diagnostic code 3 hE Heater Error Invalid heating termperature in running the dryer Check for Restricted vent system Check Thermistor resistance Component Electrical Testing Thermistor resistance 10K 25 C 77 F 2P Blue amp Red wire Thermostat 1 resistance lt 1 White amp Yellow wire Thermostat 3 resistance lt 1 Red amp Black wire If resistance is infinity replace thermostat 3 Thermostat 2 resistance lt 1 Blue amp Black wire If resistance is infinity replace thermostat
8. stor resistance is very low Check for Clogged lint screen Restricted vent system Check Thermistor resistance 2 Thermistor Open Sensed The Thermistor resistance is very high Check for Low ambient temperature in room Below 50 F 10 C Outside vent damper is stuck open in wintertime Loose or open wire terminals Check Thermistor resistance 3 Door Circuit Failure Invalid state for more than 256 milliseconds Check for Loose or open wire terminals in Door Sense circuit 4 Possible motor transistor error If either motor transistor is seen open or shorted during startup Check for Loose connections in motor circuit Run System Check Mode and check the motor relay function If relay functions disregard the diagnostic code If relay does not function replace machine control board Troubleshooting Procedures WARNING To avoid risk of electrical shock personal injury or death disconnect power to dryer before servicing unless testing requires power September 2006 16026881 2006 Maytag Services RPL 16026540 5 85 C 25A thermal cut off Code Description Trigger Action Taken 8 Stuck Key A key is sensed to be pressed more than 75 seconds the key shall be assumed to be stuck Run membrane pad check and replace console w membrane pad if necessary 10 No Wet Clothes Sensor bar detects no wet clothes while a Sensor D
9. stretched Idler pulley jammed or stuck Runs a few minutes and then stops Lint buildup around drive motor Low voltage present Blower impeller blocked in blower housing Drive motor start switch contacts stuck closed Blows fuses or trips circuit breaker The amperage readings are at 240 volts One line will be 24 amps and the other line will be 21 amps The neutral line will be at 3 amps If the above amperages are present then the house wiring fuse box or circuit breaker should be suspect Shorted heating element to housing Incorrect wiring or a wire shorting to ground Drive motor winding shorting to ground Gas Models During ignition the dryer will draw X amps With the burner ON the dryer will draw X amps If the dryer is drawing amperages above this then the house wiring fuse box or circuit breaker is suspected to be at fault Igniter harness loose and shorted to base Incorrect wiring or wire shorted to ground Drive motor winding shorting to ground Will Not Dry Will not heat motor runs Open heating element Hi Limit trips easily or is open Regulating thermostat trips easily or is open Membrane switch open Check Thermistor Will Not Dry Gas Models Poor Gas Ignition When the dryer is operated on a heat setting the igniter should be energized and burner shall fire within 45 seconds at 120 VAC The failure of a component in this system will us
10. ually be indicated by one of three symptoms The igniter does not glow If the igniter does not heat up remove power and using an ohmmeter check the following Open flame sensor Open igniter Shorted booster coil Open wiring Bad motor switch Neutral supply No power from control L1 supply Igniter glows No gas ignition If the igniter heats up but the main burner flame is not ignited remove power and using an ohmmeter check the following Open secondary coil Open holding coil Open wire harness Stuck flame sensor Stuck closed The gas is ignited but the flame goes out If a normal ignition takes place and after a short while the flame goes out check for the following Radiant sensor contacts opening prematurely Weak gas valve coil may open when stressed by higher temperatures Weak Hi Limit Poor venting Bad drum seals Improper drying clothes wrinkled rough texture long dry time Lint filter is not clean Restriction in exhaust Outside exhaust hood damper door stuck closed Exhaust too long too many elbows flex ductwork installed Poor intake air available for the dryer Incorrect tumbler speed Tumbler belt slipping Blower impeller bound check for foreign material in blower area Customer overloading dryer Check clothing labels for fabric content and cycle selected Clothes too wet due to insufficient spin out by wash
11. verity level of the abnormality detected is higher and service may be required When a problem with the dryer is detected a Diagnostic Code is assigned and can be displayed The Control Board will not log multiple same codes per cycle however it will log as many Diagnostics as possible for the machine to continue running Access Diagnostic Codes by entering the Service Mode and pressing Wrinkle Prevent A d will be displayed Rotate the Cycle Selector Knob in either direction to step through the list of codes one code at a time Once an initial direction is selected by the user either Clockwise or Counterclockwise subsequent movements of the knob in the same direction will show older codes If the user changes direction and turns the knob in the opposite direction the more recent code will be displayed While a diagnostic code is displayed if the Start Pause button in the center of the Rotary Cycle Selector is pressed and held the machine will display the number of cycles ago the diagnostic code occurred When the Start Pause button is released the diagnostic code is again displayed Clearing Diagnostic Codes To clear the diagnostic code list press the Sensor Dry Level and Time keypads together for 3 seconds while viewing the list The cycle count for each diagnostic code will be reset to 0 but not the machine cycle count Diagnostic Codes Code Description Trigger Action Taken 1 Dryer Thermistor Short Sensed The Thermi
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