Hoshizaki KMD-850MAH Service Manual page 25

6) Remove the control box cover.
7) Disconnect the black float switch connector from the K5 connector on the control board.
8) Check for continuity across the float switch leads. With the water tank empty, the float
switch should be open. If open, continue to step 9. If closed, follow the steps in "II.
E.2. Float Switch Cleaning." After cleaning the float switch, check it again. Replace if
necessary.
9) Reconnect the black float switch connector, then replace the control box cover.
10) Move the control switch to the "ICE" position. Replace the insulation panel and front
panel in their correct positions, then turn the power supply on. After 1 minute, the
1 minute fill cycle should end and the initial harvest cycle should begin. If the initial
harvest cycle begins, the float 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.
15) Disconnect the black float switch connector from the K5 connector on the control board.
16) Check for continuity across the float switch leads. With the water tank full, the float
switch should be closed. If the float switch is closed and the icemaker will not switch
from the 1 minute fill cycle to the initial harvest cycle, replace the control board.
If open, confirm that the water tank is full. If the tank is not full, check the water supply,
water filters, and inlet water valve. If the tank is full, follow the steps in "II.E.2. Float
Switch Cleaning." After cleaning the float switch, check it again. Replace if necessary.
Overflow Cap
Fig. 1
Overflow Pipe
Cube Guide A
Water Shield
Drain Plug
Cube Guide B
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