Polycold Cryochiller
Installation and Operation Manual
Brooks Automation
214072 Revision B
10-1
10 Troubleshooting
Troubleshooting Techniques
Successful troubleshooting involves gathering enough information and asking enough questions to
define the problem using a single statement of how the system is supposed to operate and how the sys-
tem is operating improperly.
Define the Problem
You may be able to define and solve the problem by creating a simple statement that describes the
problem.
• Observe and list the symptoms of the problem
• Determine what is happening that is different from what should happen
• Determine the items that have the problem and those that do not
• Determine when the problem first occurred and how often it occurs
• Determine the state of the system when the problem occurred or occurs
• Reduce the list of symptoms to the primary symptom.
• List the possible causes of the symptom
• Reduce the list of causes based on what is happening and what is supposed to happen.
Contacting Authorized Service
When contacting authorized service, have as much of the following information available as is possible.
• Record the model number, part number, and serial number from the equipment.
• Provide installed location
• Provide name, address, E-mail address, and phone number of person to contact.
• List error codes or symptoms.
• List work done on unit before problem occurred, function unit was performing when the problem
occurred, actions taken after problem occurred.
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