Gas Dryer - Maytag YMEDE250XL0 Mode D'emploi

FOR SERVICE TECHNICIAN ONLY - DO NOT REMOVE OR DESTROY
5. If no open circuit is detected, remove the P14
connector, then measure the resistance between
P14-3 (red-white wire) and P14-6 (red-white wire)
at the connector. See figure 15, page 23, for
connector location; and Accessing & Removing
the Electronic Assemblies, page 21.
If 5–15 k are measured, replace the
machine control electronics.
If the resistance is less than 1 k , replace
the exhaust thermistor.

GAS DRYER:

1. Unplug dryer or disconnect power.
2. Remove the toe panel to access the thermal
components.
3. Perform TEST #3b, page 18. If the thermal
fuse is OK, go to step 4.
4. Perform TEST #3c, page 18. If the thermal
cut-off is OK, go to step 5.
5. Locate the high limit thermostat. See figure
10. Measure the continuity through it by
connecting the meter probes on the red wire
and blue wire terminals.
If there is an open circuit, replace the high
limit thermostat and the thermal cut-off.
Otherwise, go to step 6.
6. Perform TEST #3d, page 18. If this is OK,
replace the machine control electronics.
Heat will not shut off:
1. Unplug dryer or disconnect power.
2. Access the machine control electronics.
Remove the P14 connector, then measure the
resistance between P14-3 (red-white wire) and
P14-6 (red-white wire) at the connector. See
figure 15, page 23 for connector location; and
Accessing & Removing the Electronic Assemblies,
page 21.
If 5–15 k are measured, replace the
machine control electronics.
If the resistance is greater than 20 k ,
replace the exhaust thermistor.
TEST #3a Exhaust Thermistor
The machine control electronics monitors
the exhaust temperature using the exhaust
thermistor, and cycles the heater relay on
and off to maintain the desired temperature.
Begin with an empty dryer and a clean
lint screen.
1. Plug in dryer or reconnect power.
2. Start the Timed Dry cycle.
3. If after 60 seconds, f3 e1 or f3 e2 flashes
in the display (on models with seven segment
display) or the WET indicator flashes F3E1 or
F3E2 (on models without seven segment display)
and the dryer shuts off, the thermistor or wire
harness is either open or shorted.
Unplug dryer or disconnect power.
Check wire connections at the machine control
electronics and thermistor. See Accessing &
Removing the Electronic Assemblies, page 21, and
for thermistor location, see figure 10, page 16.
If wire connections are good, remove the two
wires from the thermistor and replace the thermistor.
Reassemble all parts and panels.
Plug in dryer or reconnect power.
4. If f3 e1 or f3 e2 does not flash in the display
(on models with seven segment display) or the
WET indicator does not flash F3E1 or F3E2 (on
models without seven segment display), the
connections to the thermistor are good. Therefore,
check the exhaust temperature value at any or
all of the temperature levels in question, using
the Timed Dry cycle, and the following process:
Hold a glass bulb thermometer capable of
reading from 90° to 180°F (32° to 82°C) in the
center of the exhaust outlet. The correct exhaust
temperatures are as follows:
EXHAUST TEMPERATURES
Temperature Heat Turns Off* Heat Turns On
Setting
High
Med High 150°±5° (66°±3°)
(Maytag only)
Medium 140°±5° (60°±3°)
Low
Extra Low 105°±5° (41°±3°) temperature
* The measured overshoot using the glass bulb
thermometer in the exhaust outlet can be 30°F
(17°C) higher.
5. If the exhaust temperature is not within
specified limits, remove the P14 connector, then
measure the resistance between P14-3 (red-
white wire) and P14-6 (red-white wire) at the
connector. See figure 15, page 23 for connector
location; and Accessing & Removing the
Electronic Assemblies, page 21.
NOTE: All thermistor resistance measurements
must be made while dryer is unplugged or
disconnected from power.
PAGE 17
°F (°C)
155°±5° (68°±3°)
125°±5° (52°±3°)
°F (°C)
10–15°
(6–8°)
below
the heat
turn off