Dryer starts then 8-10 seconds later dings,stops,displays code for heater temp.control problem.This is intermittent problem,sometimes it works!

The rat chewed up the power line and caused it to short out. Kill the rat!

check the electrical connection under seat at seatbelt latch

You will nee The error code E68 is a stuck button error code. I recommend checking each button to make sure it loose in the plastic console. The button should rock side to side a little bit. If all the buttons are loose you can try to reset the unit control by unplugging the dryer for two minutes. If the error code comes back you will need to replace the unit control.

From the service manual there is more to it but that was all I could put here.
Accessing Service/Diagnostic Mode:
Pressing down the damp dry and time (-) keys
for 5 seconds places the machine in the
diagnostic mode.
SPECIAL TESTS
The following table lists the various tests
available while in the Service Mode, which
can be accessed by pressing the following
keys:
Press Keys Special Test/ Function
wrinkle
release Diagnostic Codes
dryer
temp(^ )
Sequences up the
help/diagnostic code list
dryer temp(v) Sequences down the
help/diagnostic code list
time (-) Displays Software Revision
Number
very dry(< ) View current cycle
temperature (Co)
start/pause
Start or pause cycle running
but remain in Diagnostic
mode
Accessing Diagnostic Codes
After the machine is in the diagnostic mode,
a ‘d’ will display and let the technician know
they are in the diagnostic mode. Pressing the
wrinkle release key will access the diagnostic
codes.The diagnostic codes can be viewed by
using the temperature (^) & (v) keys.
The down arrow key will sequence down the
list one each time it is pushed with no wrap.
The first time the down arrow key is pushed
the display will sequence to the next code
logged. The last code being displayed being
the oldest code. The up arrow will sequence
up the list one code each time it is pushed
until it reaches the top code. If there are no
diagnostic codes available, ‘00‘ will be
displayed for the diagnostic code.
There will be no multiple occurrences of
either a diagnostic code or help code generated
in the same cycle reported on the list.
But if the same code occurs in repeated
cycles, it will be registered.
To clear the diagnostic code list press
wrinkle prevent and very dry (>) for 5
seconds while viewing the list.
System Check Mode
While in diagnostic mode, pressing the damp
dry and signal (+) keys for 2 seconds, will
put the dryer into the system check mode.
"SC" will display.
This mode will allow the various inputs and
outputs to be controlled and viewed by the
technician by pressing individual keys. If no
activity is seen for 5 minutes after a key is
depressed, the control will reset back to the
normal mode. If no further activity is seen
after an additional 5 minutes the washer will
turn off. The following table lists the various
functions based upon on keys being depressed.
Membrane Pad Check
While in system check mode, pressing the
damp dry and sensor dry keys for 5 seconds,
will start a membrane pad switch test.
The membrane check involves turning all the
embedded LED on the membrane pad on.
All the LED’s can be toggled off by pressing
the key associated with the LED. To exit the
test at any point, press the damp dry (>) &
sensor dry keys again for 5 seconds or press
the off key to exit diagnostic mode.
Key Pressed: Function Performed
sensor dry
Enable sensor dry circuit.
(sense dry LED) When short
circuit is detected across the
sensor bars the normal dry
LED will turn on.
start/ pause
Cycles the motor relay
on/off. When the motor is
running the start/pause LED
is on.
dry temp(^ )
If motor is running, cycles
the heater/gas valve on/off.
When the heater is regular
temp LED is on.
very dry(< ) View current cycle
temperature (Co)
www.appliancehelponline.com

You can try pulling your pilot assembly out and clean it. Sometimes it will get sooted up and cause the sensor to short so the heater get's a falce reading and shuts the heater down. Then sometimes the heater will start and sometimes it won't. If this dosen't help check the ignition wire for any cracks or anyplace it may be shorting. Good luck.

When looking at a power distribution schematic, the HVAC and cruise control share a dedicated feed from the ignition switch. It sounds to me like the switch has an intermittant fault, since the display is lit and then when cranked it goes dead (as it should) but the switch may never remake the contact when returning to run causing the loss of power.

Do you clean the lint filter after each use? If not, please do so now.

Next pull out the dryer and look for kinks or squishing of the big rippled six inch exhaust hose. You can take it off by unscrewing the clamp tht holds it onto the dryer and then clean it out. it may be clogged. You can also go outside to the external vent and check it for a clog.

Another thought is that the WASHER is not spinning enough water out of the clothing so that the dryer gets very hot trying to dry them.

I hope this helps. I'll have alook at the manual if I can locate it while you are doing this. Does it give you a code number?

Please check out the following article:

http://fixitnow.com/wp/2007/06/19/whirlpool-duet-sport-dryer-diagnostics-and-fault-codes/


Brian