Service Manual

29
F. Float Switch Check and Cleaning
FS is used to determine that there is sufficient water in the water tank after the 1-min.
ll cycle and after each harvest cycle. FS is also used to determine that the appropriate
volume of water has been converted into ice before switching out of the freeze cycle.
No adjustment is required.
1. Float Switch Check
To check FS, follow the steps below.
1) Turn off the power supply.
2) Remove the front panel and move the control switch to the "OFF" position.
3) Remove the front insulation panel, then remove splash guard, cube guide B, and cube
guide A. Next, remove the overow cap, overow pipe, and water shield. See Fig. 3.
4) Remove the drain plug and drain the water
tank. Replace the drain plug in its correct
position. Be careful not to cross thread it.
5) Replace the water shield, overow pipe,
overow cap, cube guide A, cube guide B,
splash guard, and front insulation panel in
their correct positions.
NOTICE! Be careful not to cross thread
the overow pipe.
6) Remove the control box cover.
7) Disconnect the black oat switch connector
from the K5 connector on the control board.
8) Check for continuity across the oat switch
leads. With the water tank empty, the oat
switch should be open. If open, continue to
step 9. If closed, follow the steps in "II.F.2.
Float Switch Cleaning." After cleaning
the oat switch, check it again. Replace
ifnecessary.
9) Reconnect the black oat switch connector, then replace the control box cover.
10) Move the control switch to the "ICE" position. Replace the front panel in its correct
position, then turn the power supply on. After 1 minute, the 1 minute ll cycle should
end and the initial harvest cycle should begin. If the initial harvest cycle begins, the oat
switch is good and the check is complete. If the initial harvest cycle does not begin,
continue to step 11.
11) Turn off the power supply.
12) Remove the front panel.
13) Move the control switch to the "OFF" position.
14) Remove the control box cover.
Overow Pipe
Cube Guide A
Overow Cap
Water
Shield
Drain
Plug
Cube Guide B
Fig. 3
Splash Guard