26
D. Bin Control Check
IMPORTANT
Make sure S1 dip switch 7 is in the "ON" position. This allows the control board to
monitor the BC (infrared sensor).
1) Remove the front panel.
2) Move the power switch to the "OFF" position, then unplug the appliance from the
electrical outlet.
3) Remove the control box cover and access CB. Confirm that S1 dip switch 1, 2, 3 are
in the proper position for your application. See "III.B.2. BC (Infrared Sensor) Shutdown
Delay (S1 dip switch 1, 2, 3)."
4) Confirm that BC is connected to CB K6 connector. Wipe down the lens with a warm,
clean, damp cloth. If the bottom of the icemaker is not accessible in your application,
remove the thumbscrew securing the BC housing, then remove the housing from the
base. See Fig. 3.
5) Make sure the control switch is in the "ICE" position, then plug the icemaker into the
electrical outlet.
6) Move the power switch to the "ON" position to start the automatic icemaking process.
Check that BC green LED is on. The BC green LED confirms 20VDC from CB to BC
and remains on constantly.
Diagnosis:
If the BC green LED is not on, confirm 20VDC
at CB K6 pin #1 (DBU) to CB K6 pin #3 (BR). If 20VDC is present and the BC green
LED is off, replace BC. If not, see step "3) BC (infrared sensor) Power Supply," under
"II.C. Control Board Check."
7) Make sure CB "GM" LED is on. There is a delay of at least 30 sec. before CB "GM" LED
turns on after power-up. After CB "GM" LED turns on, press CB "SERVICE" button to
bypass the 5-min. ice purge cycle.
WARNING! Risk of electric shock. Care should be
taken not to touch live terminals.
8) "GM" and "COMP" LEDs are on. Use an object to cover the lens. BC yellow LED turns
Fig. 3
Housing
Connector
(20VDC from
K6 connector on
control board)
LEDs
Lens
BC (infrared sensor)
Housing
Lens
LEDs
Thumbscrew