Dean Portable Filters MF90 Series Installation & Operation Manual page 22

6.2 Troubleshooting Flowcharts
The following flowcharts contain information to assist the user in diagnosing the most
common malfunctions with portable filtration systems. Possible solutions and/or corrective
actions are given for each scenario.
When utilizing these flowcharts, begin at the top of the diagram, then follow each step in
sequence. Follow the arrows directing you through the sequence of steps, until you find the
cause of the problem. If the malfunction cannot be diagnosed using the flowcharts, contact
your Factory Authorized Service Agent for repairs.
Use extreme care when working with or during electrical circuit tests. Live
Inspection, testing and repair of gas or electrical equipment should be
DANGER
circuits will be exposed.
DANGER
performed by qualified personnel.
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