Dexter Laundry T-350 Parts & Service Manual page 121

Fault# Description
F7 Wrong size drive installed
F8
The washer tub does not
empty within 7 minutes. The
wash cycle will continue. The
F 8 will flash three times,
then wait for 30 seconds.
The error will clear at the
end of the cycle.
F9
The washer tub does
not reach the spin target
frequency within 150
seconds. The wash cycle will
continue. The F9 will flash
three times, then wait for 30
seconds. The error will clear
at the end of the cycle.
F10 After a spin the washer tub
does not stop within 150
seconds.
F11 The drive size setting has
changed.
F12
Washer controller internal
error
Customer Action
Check VFD fault code before turning off power.Check to
ensure all the harnesses are properly connected to the
controller. Check to ensure the VFD drive horsepower
is proper for this size of washer. The control can be
reset by holding program button on controller during
startup (soft reset) Check orange wires at molex
connector on controller coming from pressure switch.
Check VFD fault code 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.
Check VFD fault code 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.
Check VFD fault code 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.
Check VFD fault code before turning off power. Check
to ensure all the harnesses are properly connected to
the controller. Check to ensure the drive horsepower is
proper for this size of washer. If no one has worked on
machine very recently then PCB controller or VFD may
need to be replaced. Do a soft reset before and after
either VFD replaced.
Check VFD fault code before turning off power. Turn
off the power to the washer. Wait one to two minute.
Turn on the power to the washer. If problem reappears,
contact your Dexter Authorized Representative.
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