Troubleshooting Machine Fault Errors
The following are descriptions of fault codes that will appear on the front of the washer.
There is a chart format that shows what fault code that will be displayed at washer front.
The codes displayed may or may not stop machine operation.
PLEASE NOTE: CHECK DRIVE FAULT CODE BEFORE POWERING MACHINE DOWN!
Fault# Description Customer Action
F1 The door failed to close and
lock or The door failed to
remain locked during the
cycle.
Check VFD fault code before turning o. Check to hear
if door solonoid engaged. Turn o the power to the
washer. Check wire connections to door /lock switches.
Check wire connections from switches to controller.
Check P-4 wire connections at PCB controller. Adjust
the door lock mechanism. (See service manual)
F2 The washer tub does not
ll with water within 7
minutes. The wash cycle will
continue. The F 2 will ash
three times, then wait for 30
seconds. The error will clear
at the end of the cycle.
Turn o the power to the washer. Check the operation
of the water valves. Check the incoming water
pressure. Check for blocked or restricted water ow.
Check to ensure the drain valve is functioning properly.
This error will occur on 18# washers when water level
is set for high (the pressure switch in 18# washer is
only one level).
F3 Memory error in controller.
The memory checksum is
wrong.
Check VFD fault code before turning o power. Try to
clear the fault with the Palm. Try a soft Reset of the
controller with the white button. If problem. Replace
PCB controller.
F4 Washer controller
communication error
Check VFD fault code before turning o power. Try the
data cable rst. Move around cable and remove any
side loading tension from data cable connector ends.
Check connection P25/24/23 to P15. Turn power back
on to the washer. If the problem returns, replace the
PCB washer controller.
F5 Pressure Switch error (only
OPL) - when the high level
sensor indicates full but the
lower one indicates empty.
The wash cycle will continue.
The F 5 will ash three
times, then wait for 30
seconds. The error will clear
at the end of the cycle.
Check VFD fault code before turning o power. Check
the pressure switch.(Ohm out contacts). Check pressure
switch connections to ensure they are all making good
contact. Check the Molex type harness connector to
ensure no wire been pushed out of the Molex type
housing that it is shorting or not connecting.
F6 Wrong washer size for drive
type.
Check VFD fault code before turning o power. If the
controller was installed in a dierent 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.
Fault# Description Customer Action
F7 Wrong size drive installed Check VFD fault code before turning o 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.
F8 The washer tub does not
empty within 7 minutes. The
wash cycle will continue. The
F 8 will ash three times,
then wait for 30 seconds.
The error will clear at the
end of the cycle.
Check VFD fault code before turning o 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.
F9 The washer tub does
not reach the spin target
frequency within 150
seconds. The wash cycle will
continue. The F9 will ash
three times, then wait for 30
seconds. The error will clear
at the end of the cycle.
Check VFD fault code before turning o 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.
F10 After a spin the washer tub
does not stop within 150
seconds.
Check VFD fault code before turning o 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.
F11 The drive size setting has
changed.
Check VFD fault code before turning o 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.
F12 Washer controller internal
error
Check VFD fault code before turning o power. Turn
o 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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Part # 8533-073-001 3/22 Part # 8533-073-001 3/22
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