6-1
UGH009/0999 microKool Portable Chillers
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Before beginning . . . . . . . . . . . .6-2
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A few words of caution . . . . . . .6-2
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How to identify the cause
of a problem . . . . . . . . . . . . . . .6-3
D
IAGNOSTICS
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Shut down alarms . . . . . . . . . . .6-4
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Warning alarms . . . . . . . . . . . .6-10
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System alarms . . . . . . . . . . . . .6-11
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Chiller will not power up . . . . .6-12
R
EPAIR
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Checking and replacing fuses .6-13
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Resetting overloads . . . . . . . . .6-14
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Replacing the pump overload .6-14
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Replacing the motherboard . . .6-15
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Replacing the compressor
contactor . . . . . . . . . . . . . . . .6-16
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Checking the unloader valve . .6-17
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Replacing the freezestat . . . . .6-18
TROUBLESHOOTING
