Specifications

6-1
UGH015/0100 Thermolator TW-1 and TW-2
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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 . . . . . . . . . . . . .6-8
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System alarms . . . . . . . . . . . . .6-11
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Thermolator 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 heater
contactor . . . . . . . . . . . . . . . .6-16
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Checking and replacing
thermocouples . . . . . . . . . . .6-17
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Repairing solenoid valves . . . .6-18
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Replacing heater elements . . .6-20
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Removing the pump . . . . . . . . .6-22
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Disassembling and assembling
3/4 - 2 HP pumps . . . . . . . . . .6-23
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Disassembling and assembling
3 - 7.5 HP pumps . . . . . . . . . .6-24
TROUBLESHOOTING