6
SECTION
6
Troubleshooting
Troubleshooting I 6-1
Troubleshooting
Before Beginning ................................................. 6-2
A Few Words of Caution......................................... 6-3
Identifying the Cause of a Problem ......................... 6-4
Controller Alarms ................................................. 6-5
Controller Control Fault Logic ...............................6-14
Unit Faults .........................................................6-15
Unit Will Not Power Up .........................................6-26
Troubleshooting ..................................................6-27
Replacing the Heater Contactor .............................6-29
Checking the RTD ................................................6-30
Replacing the RTD ...............................................6-32
Repairing Cooling Valves ......................................6-33
Disassembly of Alternate Direct Acting Solenoid
Valves ...............................................................6-34
Alternate Pilot Operated Solenoid Valves .................6-35
Replacing Immersion Heaters ................................6-36
Removing the Pump .............................................6-38
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