Welbilt Koolaire KD0270A, Technician'S Handbook, Page: 93 / 136

Part Number STH047 Rev01 10/18 93
Main Fuse
Function
The control board fuse stops ice machine operation if
electrical components fail causing high amp draw.
Specifications
The main fuse is 250 Volt, 10 amp.
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Warning
High (line) voltage is applied to the control board at
all times. Removing the control board fuse or moving
the toggle switch to OFF will not remove the power
supplied to the control board.
Check Procedure
1. If the bin switch light is on with the ice damper
closed, the fuse is good.
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Warning
Disconnect electrical power to the entire ice machine
before proceeding.
2. Remove the fuse. Check the resistance across the fuse
with an ohmmeter.
Reading Result
Open (OL) Replace fuse
Closed (O) Fuse is good
Component Check Procedures