Alliance Laundry Systems A-Control - Control Stops with 01 on Display

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Troubleshooting – B-Control Coin Models
16.The Control Stops with “01” on the Display
Before beginning the troubleshooting, be sure that the IDC Harness Kit (Part No. F200189300 [all voltage
models except C-voltage] and F200189301 [C-voltage models]) has been installed onto the machine.
WARNING
When powering the machine down, allow time
(3 minutes) for the door lock capacitor to
discharge.
*
CHM454S
Is the basket
empty?
Repair/replace the wiring
from the water level switch
to the microprocessor.
Make sure that the IDC
Harness Kit has been
installed onto the machine.
NO
NO
START
Is
the drain light
(DR) on the output
board on? See
Figure 17.
Is
the drain valve
stuck or is there a
sluggish/backed-up
drain?
Repair/replace the drain
valve and/or clear the
drain from obstructions
as needed.
YES
YES
Is the basket
rotating?
NO
YES
YES
YES
NO
YES
Replace the output board.
NO
NO
NO
YES
YES
NO
NO
YES
Is
there voltage (220
Volts AC) from the
input terminal on the
3-second time delay to
the ACN1 tab on the
output board? See
Figures
8 and 13.
Repair/replace the
wiring from the ACH2
to the 3-second time
delay. Make sure that
the IDC Harness Kit
has been installed onto
the machine.
Is
there voltage (220
Volts AC) from the
load terminal on the
3-second time delay to
the ACN1 tab on the
output board? See
Figures 8 and 13.
Replace the 3-second time
delay.
Replace the water level
switch.
NO
Power down the machine
*
and take an ohm reading at
the door lock solenoid.
Are the following ohm
readings present?
Door Unlock Circuit:
65 ohms (+/- 10%) between
the black/blue wire and the
black wire (See Figure 10)
Door Lock Circuit:
264 ohms (+/- 10%) between
the orange and blue wire
(See Figure 11)
Check the wiring connections from the output board
to the door lock solenoid.
Change EProm on main
control to ensure latest software is being used.
NOTE: When changing the EProm the cycle will need
to be reprogrammed.
Replace the door
lock solenoid.
Power
down the machine
*
and take an ohm reading
between the two ends of the
the RT1 thermistor. See
Figure 12.
Is the ohm reading between
90-150?
Are
the DL and DU
lights on the output
board staying on
constantly? See
Figure 12.
C-voltage] and F200189301 [C-voltage models]) has been installed onto the machine.
Repair/replace
the wiring to the
3-second time
delay. Make
sure that the
IDC Harness
Kit has been
installed onto
the machine.
YES
YES
Is
the water
level switch
working
correctly?
Does
the RT1
thermistor on the
output board look like
what is shown?
See Figure 12.