Maytag Epic MED/GD9600S, Техническое образование

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6-11
A particular group of LEDs does not light
up:
A group or combination of LEDs share a com-
mon electronic connection. If this connection
is open, all of the LEDs in the group will be
disabled. Replace the console electronics and
housing.
A single LED does not light up:
Press the button or manipulate the dial asso-
ciated with the LED several times. If the LED
does not light up, the LED has failed. Replace
the console electronics and housing.
No beep sound is heard:
If the associated LEDs do light up, it is pos-
sible that the beeper circuit has failed. Check
functions of buttons before replacing the elec-
tronic control board.
No dryer function is activated when a
particular button is pressed:
If the associated LEDs do light up, it is pos-
sible that the electronic control board has failed.
Check functions of buttons before replacing the
electronic control board.
E3 error code is displayed:
If the E3 error code is displayed, there is a user
interface or software mismatch. It is also pos-
sible that a component on the console elec-
tronics or the electronic control board has
failed. Check functions of buttons before re-
placing the electronic control board. See
“Checking The Button Functions” on page
6-12.
8. Measure the resistance across the pins of
the mating connector. If a small resistance
is measured, replace this harness.
9. Measure the resistance across each of
the outermost contacts and the center pin
(ground).
• If a resistance less than infinity is mea-
sured, replace the wire harness and
moisture sensor.
10. If moisture sensor diagnostic test passes,
check the thermistor (perform Test #3a,
page 6-8).
• If the problem persists after replacing
the moisture sensor and thermistor, re-
place the electronic control board.
TEST #5: BUTTON & LED TEST
Activate the Diagnostic Test mode, and check
for the following situations:
• None of the LEDs light up.
• A particular group of LEDs does not light
up.
• A single LED does not light up.
• No beep sound is heard.
• No dryer function is activated when a
particular button is pressed.
• E3 error code is displayed.
None of the LEDs light up:
1. See “Diagnostic Guide” on page 6-1 be-
fore servicing.
2. Visually check that connectors P3 and P4
are inserted all the way into the electronic
control board. If these connections are
good, perform the checks described in
“Checking The Button Functions,” and
“Checking The Rotary Cycle Selector.”
• If this visual test passes, replace the
electronic control board.
• Otherwise, replace the console elec-
tronics and housing.