Transcription of Front Load WasherTechnical Information - Amazon S3
1 August 2006 1 16027402 2006 Maytag ServicesFront load washer Technical InformationMAH6500* Due to possibility of personal injury or property damage, always contact an authorized technicianfor servicing or repair of this unit. Refer to Service Manual 16010061 for detailed installation, operating, testing, troubleshooting, anddisassembly instructions. All safety Information must be followed as provided in Service Manual 16010061. To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires !
2 ! MAH6500AW*16027402 2 August 2006 2006 Maytag Services!WARNINGTo avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unlesstesting requires Testing ProceduresSERIES 10- 44 Machine Control Board INPUT/OUTPUTD escriptionConnector/Pin NumberReferenceToConnector/Pin NumberVol ta geComm ent sBleach water valve outputP1(4)P6(2)120 VACCold water valve outputP1(3)P6(2)120 VAC500-1K ohmsDoor Lock outputP1(1)P6(2)120 VAC60 millisecond pulseDoor lock switch inputP4(5)P4(4)24 VDCDoor switch inputP8(4)P6(2)120 VACDoor unlock outputP8(3)P6(2)120 VAC60 millisecond pulseDrain pump outputP8(1)P6(2)120 VACHigh water level - inputP1(6)P6(2)120 VACHot water valve outputP1(2)
3 P6(2)120 VAC500 - 1K ohmsL1- machine control boardP6(1)P6(2)120 VACL1- motor controlP8(2)P6(2)120 VACL ower water level - inputP4(8)P4(4)24 VDCM otor control tachP4(2)P4(4)24 VDCN eutral (120 VAC)P6(2)NeutralUnbalance inputP3(4)P4(4)24 VDCS oftener water valveP1(5)P6(2)120 VACT orque PWMP4(3)P4(4)24 VDCW ater valve thermistorP4(6)P4(7)(10K-85K ohms)HeaterP6(3)P8(4)120 VACT hermistor-HeaterP3(1)P3(2)120 VAC500 - 40K ohmsHigh Level Sense (HWL)Softener Water Valve (SWV)Bleach Water Valve ( BWV)Cold Water Valve (CWV)Hot Water Valve (HWV)Door Lock Solenoid ( Lock or DL)Door Switch (DS)Door Unlock Solenoid (DUL)Motor (MTR)Drain Pump (DP)L1 NLower Wash Level Sense (LWL)Valve Thermistor (WT)Valve Thermistor (WT)Door Lock Actuator Switch (DLS)+24 Volts (24V)To r q u e P W M ( P W M )Motor Control Tach (Tach)Mtr Control Signal Common (Comm)P3+24 Volts (24V)Unbalanced Switches(UB)Wiring HarnessConnectionsLetters in parenthesis designate markings on the Control Board5 Heater (HTR)Htr34 Heater Thermistor (ST)Heater Thermistor (ST)
4 P4 August 2006 3 16027402 2006 Maytag Services!WARNINGTo avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unlesstesting requires 45 - currentMachine Control Board INPUT/OUTPUTD escriptionConnector/Pin NumberReferenceToConnector/Pin NumberVol t a geCom me n tsBleach water valve outputP1(4)P6(2)120 VACCold water valve outputP1(3)P6(2)120 VAC500-1K ohmsDoor Lock outputP1(1)P6(2)120 VAC60 millisecond pulseDoor lock switch inputP4(5)P4(4)12 VDCDoor switch inputP8(4)P6(2)120 VACDoor unlock outputP8(3)P6(2)120 VAC60 millisecond pulseDrain pump outputP8(1)P6(2)120 VACHigh water level - inputP1(6)P6(2)120 VACHot water valve outputP1(2)P6(2)
5 120 VAC500 - 2K ohmsL1- machine control boardP6(1)P6(2)120 VACL1- motor controlP8(2)P6(2)120 VACL ower water level - inputP4(8)P4(4)12 VDCM otor control tachP4(2)P4(4)12 VDCN eutral (120 VAC)P6(2)NeutralUnbalance inputP3(4)P4(4)12 VDCS oftener water valveP1(5)P6(2)120 VACT orque PWMP4(3)P4(4)12 VDCW ater valve thermistorP4(6)P4(7)(10K-85K ohms)HeaterP6(3)P8(4)120 VACT hermistor-HeaterP3(1)P3(2)120 VAC500 - 40K ohmsLess than 10 ohms when closedLess than 10 ohms when closedLess than 10 ohms when closedPWM signal between 0 & 100% duty cycle500 - 2K ohmsComponent Testing Procedures16027402 4 August 2006 2006 Maytag ServicesLeaking Make sure supply hose connections are notleaking.
6 Check for rubber gasket damagedue to overtightening. Make sure end of drain hose is correctlyinserted and secured to drain facility. Avoid overloading which can push the doorpartially open. Check internal hose connections Check tub cover. Remove, reposition andreinstall the tub cover seal. Seal seam mustbe at the top of the tub Lights Up When Door Opened This is normal Tumble washer does not tumble for the first 30seconds after the door has been opened forsafety purposes. Fabric cycles such as delicates and handwash only tumble for a few seconds every 30seconds. Check for loose connections at machinecontrol board, motor control board andmotor.
7 Perform Motor and Motor Control Test. washer does not tumble during some drainsand rinse Water Fill Check to make sure water supply turned onfully. Normal water level is only to 5 inches insidethe spinner. Check for kinks in inlet hoses. Check for clogged inlet screens. Visually check hot and cold separately atdispenser for proper flows. Go to No Fill Test page Clothes washer should be leveled properlyas outlined in installation instructions. Weak floors can cause vibration and walking. Check for loose lower Front bracket. Be sure rubber feet are installed on levelinglegs. Check that the leveling leg lock nuts aretightened.
8 If complaint is a high-pitched noise during fillthen disconnect supply hoses and cleanscreens. Check for proper spring placement of outertub support springs. Check strut is completely full of suds Run the clothes washer through anothercomplete cycle using cold water and no moredetergent. Reduce detergent amount for that specific loadsize and soil level. Towel loads have a minimalamount of soil present and typically create moresuds. Use high efficiency or low sudsing detergentspecially formulated for Front load washers. Check for restricted drain system. Check for loose wire connections at controlboard and pump.
9 Check to see if belt fell off motor and pulley. Perform Motor and Motor Control Procedures!WARNINGTo avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unlesstesting requires 2006 5 16027402 2006 Maytag ServicesWill Not Drain Check for restricted drain system. Check low and high water levels. Go to NoFill test page 11. Check for 120 VAC at the pump when aspin cycle is Water Temperature Too Hot/Too Cold; since this product usesa low amount of water, the boardregulates the incoming flow to temper theactual temperature of the water in the may appear to be significantlywarmer/cooler than expected.
10 Are both faucets on fully? Make sure temperature selection iscorrect. Make sure hoses are connected tocorrect faucets and inlet water line before filling washer . Check the water heater. It should be setto deliver a minimum 120 F (49 C) hotwater at the tap. Also check water heatercapacity and recovery rate. If the water heater is located a longdistance from washer , water line mayneed to be purged prior to starting washcycle. Disconnect inlet hoses and cleanscreens. This washer can sense if the fill hoseshave been reversed between hot andcold. If the fill hoses on the washer werepreviously installed incorrectly and thencorrected, the washer will need to be runthrough a Hot / Cold cycle.
