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E. Float Switch
Depending on local water conditions, scale may build up on the oat switch. Scale on the
switch can cause the oats to stick. In this case, the oat switch should be cleaned and
checked.
First, remove the switch from the water tank. Soak the switch assembly in ice machine
cleaner. While not necessary, the oats can be removed from the shaft during cleaning.
If you remove them, note that the blue oat is on top. The oats must be installed with
the magnets inside them towards the top of the switch. Installing the oats upside down
will affect the timing of the oat switch operation. Once clean, rinse and wipe the cleaner
off. Next, check the switch with an ohm meter. This oat switch has three wires (the
black wire is common) and two separate switches. Check the upper switch by ohming
out the black and red wires. When the oat is up, the switch should be closed. Check the
lower switch by ohming out the black and blue wires in the same manner. If either switch
fails, the assembly should be replaced.
Red (upper)
Black (common)
Blue (lower)
Upper Float (blue)
Magnet (towards top)
Magnet (towards top)
Lower Float (white)
Plastic Retainer Clip
Spring Retainer Clip