Dexter Laundry T300 Parts & Service Manual page 33

Fault Description
COMM Communication Condition
ERROR 7
Bus Error
Delay
Action
Solution
PCB Controller Internal Condition
ERROR1 Fault
Delay
Action
Solution
PCB Controller Internal Condition
ERROR 2
Fault
Delay
Action
Solution
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Part # 8533-080-001 12/15
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Customer Action
If a state-of-health message reply is not seen by the
master microprocessor from the UC3 microprocessor
after 10 minutes, the master will reset the UC3 and
restart the 10 minute timer. Again, after 10 minutes,
if a state-of-health message is not received by the
master, it will reset the UC3 a second time. After 10
minutes, the master will reset the UC3 a final time
and post a COMM ERROR 7.
Note: When the master resets the UC3, the control
will disconnect from the network. If the first reset
is not successful, the control will not be able to
reconnect to the network, USB or card reader
functions.
3 cycles of 10 minutes (see above)
Stop the machine and clear the cycle. Keep the
door locked until the machine has stopped moving
and then unlock the door.
The washer will not restart until the power is
removed and re-applied.
This error is an internal failure of the washer
controller electronics.
Immediate
Stop the machine and clear the cycle. Keep the door
locked until the machine has stopped moving and
then unlock the door.
Check VFD fault light before turning off power. Try a
soft Reset of the controller with the white button. If
problem. Replace PCB controller.
This error is an internal failure of the washer
controller related to inputs being matched between
the master and slave micros
Immediate
Stop the machine and clear the cycle. Keep the door
locked until the machine has stopped moving and
then unlock the door.
The washer will not restart until the power is
removed and re-applied.
Fault Description
SLOW Drain Error Condition
DRAIN
ERROR
Delay
Action
Solution
SPIN Stop Error Condition
STOP
ERROR
Delay
Action
Solution
DRIVE Washer size/ VFD Condition
ERROR
size mismatch
1
Delay
Action
Solution
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Customer Action
This error is when an empty water level is not
reach within 7 minutes.
Immediate
The washer cycle will continue. Do not spin
the tumbler with out reaching an empty water
level. If empty water level is not reached,
agitate during the normal spin time.
Check VFD fault light before turning off power.
Check to ensure the drain valve is operating
properly (slow drain has potential to cause this
code). Check to ensure the pressure switch
tube is clear of any blockage, and the pressure
switch is operating properly. Check the
pressure switch harness.
This error is when the washer does not stop
spinning within 150 seconds after receiving the
command.
Immediate
Keep the door locked until the machine has
stopped moving and then unlock the door.
Check VFD fault light before turning off power.
Inspect the braking resistors and measure
the resistance. Check connecting wiring from
braking resistor to the drive mounted in the top
of the washer. Reset the drive and try again.
Possibly incorrectly programmed drive.
This error is when the drive size does not
match the washer size.
Immediate. (after the size jumper configuration
is read). Washer size/type inputs are read
only at power up, before starting a cycle, once
every 24 hours and in factory test mode
Stop the machine and clear the cycle. Keep
the door locked until the machine has stopped
moving and then unlock the door
Check VFD fault light before turning off power.
If the controller was installed in a different
size machine before being installed in this
machine, a problem can occur. If someone has
been doing repairs on the washer, check for
the correct size drive. It can also be caused by
pressure switch harness. Check to ensure the
correct harness in installed. The control can be
reset by holding program button on controller
during startup (soft reset). Check orange wire
at Molex connector on controller coming from
pressure switch or replace pressure switch
harness.
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