Maytag mat12prb ユーザーズマニュアル

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©2003 Maytag Appliances Company
Troubleshooting Procedures
!
WARNING
To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing
requires power.
MOTOR TESTING
A motor test cord may be used to electrically check operation of the various electrical components without removing
them from the unit.  Testing in this manner merely determines whether or not part will function independently of other
electrical components.  In order to make accurate test, proper connection of the motor test cord is important.
All four leads of the test cord are required to test the washer drive motor.  The following drawing shows installation of
the test cord on washer drive motor.  Reversing the motor from agitation to spin is accomplished by reversing the test
cord wires B and C.
COMPONENT TESTING
 
Illustration 
Component 
Test Procedure 
Results 
 
 
Pressure Switch 
Disconnect wire terminals from switch. 
Measure resistance across the 
following terminals: 
Empty (Filling) 20 to 15--------------------  
 
Full (Run) 20 to 15 ------------------------- 
Resistance above 2 
Ω
 indicates dirty 
switch contacts. 
 
Closed circuit  
 
Open circuit 
 
Water Valve 
Measure resistance across the 
terminals of each coil on the valve. 
 
 
 Approximately 850-950 
Ω
 
 
Motor 
Type of Motor: 
Single speed (Split phase)  
See “Motor” Testing section for 
correct wiring contact 
 
Pump 
Verify drain pump is not clogged or 
damaged 
1) Remove clog and verify proper 
operation 
 
2) Replace drain pump if damaged 
Transmission 
Type of transmission (orbital): 
   618 r.p.m. Spin 
   150 o.p.m. Agitate 
 
Check wattage with full tub of water 
only (Use Wattage Meter) 
See “Transmission” Disassembly 
Procedures section. 
 
380 to 420 watts 
 
Belts 
Check belt for excessive wear or being 
burnt and cracking 
Replace if belt if damaged