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Technical Information – Top Load Washer
MAT12PDSA*, MAT12PRSA*
• 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 16022842 for detailed installation, operating, testing, troubleshooting, and disassembly
instructions.
All safety information must be followed as provided in Service Manual 16022842.
To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless
testing requires power.
Models
Power Source
Voltage AC
Fuse Requirement
Frequency
Motor HP (single-phase, reversible)
Cabinet Dimensions
Height Overall (including lid open)
Height of Machine
Width
Depth
Weight
Crated (lbs/kg)
Uncrated (lbs/kg)
Water Temperatures
Water Levels
Overall Gallons (liters)
Adjustable Gallons (liters)
Inlet Hose Length
Drain Hose Length
Tub Capacity cubic feet (cubic meters)
Inner Tub (spin speed)
Agitation Speed (oscillations per minute)
December 2003
!
CAUTION
!
WARNING
MAT12PDSA*, MAT12PRSA*
120 VAC
15 Amp
60 Hz
1/2 HP
52" (132.1 cm)
44-7/8" (114 cm)
25-1/2" (64.8 cm)
26-3/4" (67.9 cm)
224-lbs (102-kg)
198-lbs (90-kg)
3
2
31.5 (119.2)
29 (109.0)
4 feet (1.22 m.)
4 feet (1.22 m.)
2.5 cu.ft (0.07 cu.m.)
618 r.p.m.
150 o.p.m.
1
16022846 Rev 0

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Summary of Contents for Maytag MAT12PDSA

  • Page 1 Technical Information – Top Load Washer MAT12PDSA*, MAT12PRSA* • 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 16022842 for detailed installation, operating, testing, troubleshooting, and disassembly instructions.
  • Page 2 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Illustration Component Test Procedure Results Control Board Proper grounding is necessary when See Control Board Connections handling microprocessor board to Section.
  • Page 3: Component Testing Procedures

    Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Illustration Component Test Procedure Results Step-Down Check voltage. Transformer Primary Side:--------------------------------- 120 VAC Secondary Side: AA6-1 to AA6-2------------------------------ 2.65 VAC AA6-1to AA6-5 ----------------------------- 2.65 VAC...
  • Page 4 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. MOTOR TESTING All four leads of the test cord are required to test the washer drive motor. The following drawings show installation of the test cord on the drive motor.
  • Page 5: Control Board

    Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Control Board Connector- Wire Color Description Connector- Wire Color Description Coin Sensor #2 Service and Vault Switch AA1-1 Black Vault Switch...
  • Page 6: Programming Procedures

    Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. PROGRAMMING PROCEDURES CODE DISPLAY EXPLANATION REGULAR CYCLE PRICE Represents the number of coins. See value of Coin 1 and Coin 2. Adjustable from 0-39 coins by pressing the Permanent Press keypad.
  • Page 7 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. CODE DISPLAY EXPLANATION 8.00 SPECIAL PRICING STOPPING HOUR This is the selection of the hour using military time (24 hour clock) that the Special Pricing will "stop." Adjustable from 0 to 23 by pressing the Permanent Press keypad.
  • Page 8 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. CODE DISPLAY EXPLANATION h.01 SUPER CYCLE TYPE (Skipped unless super cycle pricing is selected “F.Su”.) This represents the super cycle upgrade option. Press Permanent Press keypad to step through upgrade option 1 through 3 as follows: 01-enhanced wash, extra 3 minutes of wash tumble in addition to programmed wash time.
  • Page 9 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Washer No user program should be in diagnostic Enter operator mode using service progress. The lid should be Program switch.
  • Page 10 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Push the woolens program keypad Does washer agitate when "A" Does washer spin when "A" is to stop the diagnostics in the is in the display? in the display?
  • Page 11: Washer Help Mode

    The mode is entered by depressing Permanent Press keypad while in special pricing option Step 2.XX(or while dAS displays if operation with Maytag Data Acquisition setup). In help mode , the Woolens keypad can be used to advance through three help codes(displayed as 1h.XX, 2h.XX, and 3h.XX). Pressing Delicates & Knits keypad while any of the help codes are displayed clears the three help codes.
  • Page 12 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. False diagnostic indication. Try to clear diagnostic Control board is ok. code by pushing delicate Did diagnostic code and knits keypad for one cancel? second.
  • Page 13 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. TROUBLESHOOTING CONTROL BOARD FLOW CHART Enter operator mode Make sure washer Enter diagnostic using service switch. Display is is plugged in to code trouble...
  • Page 14 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. The washer lid must be Washer stuck Lift washer lid. Did opened after a program with 0 minutes display change? ends before the washer remaining in...
  • Page 15 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Check optic Does PDA Will not respond window for respond to other obstructions, dirt, to handheld PDA machines? or scratches.
  • Page 16 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Check the coin No response to Is display blank? mechanism for coin 2 proper adjustment. See blank display Check wiring and section in trouble termination between...
  • Page 17 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Unplug washer check "Unbalance" Check continuity of wiring and terminations stays in display lid switch as lid is between lid switch and raised and lowered control board...
  • Page 18 Component Testing Procedures WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. Unplug washer and connector AA1. Display flashes in Check wiring and Check for proper Check for continuity between orange terminations between user Mode adjustment of...
  • Page 19: Wiring Diagram

    Wiring Diagram WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. MAT12PDSA* SCHEMATIC BATTERY OPTIONAL SWITCH CONNECTOR EE1 CONNECTOR AA3 EXTERNAL DEBIT CARD WATER LEVEL (OPTIONAL) LINE SWITCH...
  • Page 20 Wiring Diagram WARNING To avoid risk of electrical shock, personal injury or death; disconnect power to washer before servicing, unless testing requires power. MAT12PRSA* SCHEMATIC SWITCH CONNECTOR AA3 EXTERNAL DEBIT CARD WATER LEVEL (OPTIONAL) SWITCH LINE FULL CONNECTOR GY 20 15 BR RL-9 COMMON...

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