Float Switch Check And Cleaning; Float Switch Check; Float Switch Cleaning - Hoshizaki F-330BAH Service Manual

E. Float Switch Check and Cleaning

1. Float Switch Check

1) Remove the front panel, then move the flush/control switch to the "FLUSH/DRAIN"
position.
2) After 3 min. move the power switch to the "OFF" position, then unplug the appliance
from the electrical outlet.
3) Remove the top and rear panels.
4) Remove bell connectors from FS black (BK), blue (BU), and red (R) wires. Check for
open continuity between black (BK) (common) and red (R) (UFS) and between black
(BK) (common) and blue (BU) (LFS). If both are open, continue to step 5. If either are
closed, follow the steps in "II.E.2. Float Switch Cleaning." After cleaning FS, check UFS
and LFS again. Replace if necessary.
5) Cap the FS appliance wires. Black (BK), red (R), and white/blue (W/BU).
6) Move the flush/control switch to the "ICE" position.
7) Plug the appliance into the electrical outlet, then move the power switch to the "ON"
position.
8) Once reservoir overflows, move the power switch to the "OFF" position, then unplug the
appliance from the electrical outlet.
9) Check FS continuity again. Both UFS and LFS should be closed. Check for closed
continuity between black (BK) (common) and red (R) (UFS), and between black (BK)
(common) and blue (BU) (LFS). If either are open, follow the steps in "II.E.2. Float
Switch Cleaning." After cleaning FS, check UFS and LFS again. Replace if necessary.
10) Reconnect the FS wires to the appropriate appliance wires. Black (BK) to black (BK),
red (R) to red (R), and blue (BU) to white/blue (W/BU).
11) Replace the rear and top panels in their correct positions.
12) Plug the appliance into the electrical outlet, then move the power switch to the "ON"
position to start the automatic icemaking process.
13) Replace the front panel in its correct position.

2. Float Switch Cleaning

Depending on local water conditions, scale may build up on FS. Scale on FS can cause
inconsistent operation of UFS and LFS. In this case, FS should be cleaned and checked.
1) Remove the front panel.
2) Move the power switch to the "OFF" position, then unplug the appliance from the
electrical outlet.
3) If not already removed, remove the top and rear panels.
4) Remove FS assembly from the reservoir cover. See Fig. 1.
5) Wipe down FS assembly with a mixture of 1 part Hoshizaki "Scale Away" and 25 parts
warm water.
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