Maytag MAH5500BWW Service Manual - Page 118

The Door Locked Light Output signal

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below the main wash target temperature. The heater monitors the water temperature through the thermistor in the heater assembly. Selecting the energy saver, will turn off the heater and will not affect tumble patterns. VDC REFERENCE VOLTAGE OUTPUT The VDC Outputs are a reference voltage for many of the signal outputs. On the machine control, the VDC outputs are 24 VDC referenced from P2(3) to the individual outputs. Main Wash Target Temperatures The heater will not be turned on if the following conditions exist: 1. Low level of the water pressure switch is not satisfied. 2. The door is open. 3. During the Bleach fill. 4. Energy Saver on. WATER VALVE OUTPUTS The machine control determines whether the hot or cold Water Valve Outputs should be energized during the wash cycle based upon the user selections. When water fill is required, the machine control board will activate relays on the board, supplying power to the water valves. User Selections Input water tempered Cold Wash no heater Cold water Tempered wash Maximum heater on time N/A The machine control gates the power to the hot and cold Water Valve Outputs. When the pressure switch senses that the full level is reached, the circuit opens and the machine control de-energizes the Water Valve Outputs. Cold Wash with stain cycle option & heater. 65°F, Will heat water to 65°F if necessary. Main wash time The machine control will monitor the thermistor resistance and fill time to achieve proper wash temperatures. Warm Wash - Warm water N/A no heater Tempered warm Warm Wash with stain cycle option and heater. 105°F, will heat Main to 105°F if wash time necessary During a warm wash the cold may be cycled off periodically to achieve the desired water temperature. On a cold wash the hot valve may be cycled on and off. Hot Wash - no Hot water N/A heater Hot Wash with Hot water, then Main stain cycle and heat to 130°F if wash time heater. necessary DOOR LOCKED LIGHT OUTPUT The Door Locked Light Output signal powers a LED on the membrane pad switch of the LED washer. This output is energized when the washer door is locked. CYCLE SEQUENCE DEFINITIONS IDLE/PAUSE MODE (LED Model) After pressing the Off key, the entire washing machine will shut down after unlocking the door and will be in the Idle Mode. In the idle mode all the outputs are de-energized, all the LEDs and display are off. 16010486 (16008373-05) Revised 02/01 Section 2. Washer Controls Overview ©2001 Maytag Appliances Sales Company 2-6

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©2001 Maytag Appliances Sales Company
2-6
16010486
(16008373-05)
Revised 02/01
Section 2±
Washer Controls Overview
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below the main wash target temperature±
The heater monitors the water
temperature through the thermistor in the
heater assembly±
Selecting the energy
saver, will turn off the heater and will not
affect tumble patterns±
Main Wash Target Temperatures
The heater will not be turned on if the
following conditions exist:
1±
Low level of the water pressure switch
is not satisfied±
2±
The door is open±
3±
During the Bleach fill±
4±
Energy Saver on±
DOOR LOCKED LIGHT OUTPUT
The Door Locked Light Output signal
powers a LED on the membrane pad
switch of the LED washer±
This output is
energized when the washer door is
locked±
VDC REFERENCE V
OL
T
A
GE OUTPUT
The VDC Outputs are a reference voltage
for many of the signal outputs±
On the
machine control, the VDC outputs are 24
VDC referenced from P2(3) to the
individual outputs±
W
A
TER V
AL
VE OUTPUTS
The machine control determines whether
the hot or cold Water Valve Outputs
should be energized during the wash
cycle based upon the user selections±
When water fill is required, the machine
control board will activate relays on the
board, supplying power to the water
valves±
The
machine control gates the power to
the hot and cold Water Valve Outputs±
When the pressure switch senses that the
full level is reached, the circuit opens and
the machine control de-energizes the
Water Valve Outputs±
The machine control will monitor the
thermistor resistance and fill time to
achieve proper wash temperatures±
During a warm wash the cold may be
cycled off periodically to achieve the
desired water temperature±
On a cold wash the hot valve may be
cycled on and off±
CYCLE SEQUENCE DEFINITIONS
IDLE/P
A
USE MODE (LED Model)
After pressing the Off key, the entire
washing machine will shut down after
unlocking the door and
will be in the Idle
Mode± In the idle mode all the outputs are
de-energized, all the LEDs and display are
off±