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Checking The Button Functions
Before replacing the electronic control board,
check for proper button function as follows:
• Unplug dryer or disconnect power.
• Disconnect the ribbon cables at P3 and
P4 on the electronic control board. The
illustration below shows the connector
locations.
Using an ohmmeter, touch the meter test leads
to the ribbon cable connector pin locations in-
dicated in the table. Press the associated but-
ton and measure resistance.
NOTE: The meter must be connected with the
proper polarity. For most analog meters, the
connection polarity is opposite that of digital
meters.
• If using a digital meter, the resistance
reading should go from infinity down to
approximately 1 to 3.5 MΩ (megohms).
If available, you can use the “diode test”
function on the digital meter.
• If using an analog meter, the resis-
tance reading should go from infinity
(open circuit) to less than 40 kΩ. If not,
reverse the polarity of the meter con-
nection, and measure the resistance
again. If the reading is less than 40 kΩ,
the circuit is okay, and you should con-
tinue the remainder of the resistance
checks with the connections reversed
from that indicated in the table.
P/N XXXXXXX
Rev X
Date CodeYDDD
White
Blue
Black
Open
N.O.
COM
Light Blue
Black
Lt. Blue
Black
Motor Relay
G
reen/Yellow
Heater Relay
Red/White
Yellow/Red
Button
TEMP P3-12 P3-8 P3-12 P3-8
EXTRA CARE P3-13 P3-8 P3-13 P3-8
DRYNESS
LEVEL
P3-14 P3-7 P3-14 P3-7
P3-13 P3-7 P3-13 P3-7
P3-12 P3-7 P3-12 P3-7
CYCLE END
SIGNAL
P3-12 P4-2 P3-12 P4-2
HOLD TO
START
P3-14 P4-2 P3-14 P4-2
OFF/Pause P3-13 P4-2 P3-13 P4-2
CONTROL ON P3-12 P3-9 P3-12 P3-9
+
–
Digital Meter
+ Lead – Lead
Analog Meter
– Lead + Lead