Maytag MAT12PRB manual Component Testing, Motor Testing, Troubleshooting Procedures, Illustration

Troubleshooting Procedures

!WARNING

To avoid risk of electrical shock, personal injury or death, disconnect power to unit before servicing, unless testing requires power.

COMPONENT TESTING

Illustration	Component	Test Procedure	Results
	Pressure Switch	Disconnect wire terminals from switch.	Resistance above 2 Ω indicates dirty
		Measure resistance across the	switch contacts.
		following terminals:
		Empty (Filling) 20 to 15--------------------	Closed circuit
		Full (Run) 20 to 15 -------------------------	Open circuit
	Water Valve	Measure resistance across the	Approximately 850-950 Ω
		terminals of each coil on the valve.
	Motor	Type of Motor:	See “Motor” Testing section for
		Single speed (Split phase)	correct wiring contact
	Pump	Verify drain pump is not clogged or	1) Remove clog and verify proper
		damaged	operation
			2) Replace drain pump if damaged
	Transmission	Type of transmission (orbital):	See “Transmission” Disassembly
		618 r.p.m. Spin	Procedures section.
		150 o.p.m. Agitate	380 to 420 watts
		Check wattage with full tub of water
		only (Use Wattage Meter)
	Belts	Check belt for excessive wear or being	Replace if belt if damaged
		burnt and cracking

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.

14 16022842 Rev. 0 ©2003 Maytag Appliances Company