Troubleshooting Cell Circulation Systems
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Safety
Think and act in a safe manner. Always disconnect power and use a lockout before you work on the E-coat system, or any of the related subsystems. Observe any confined space conditions. Use the appropriate safety equipment and clothing for the task. Please carefully read all the instructions listed below to familiarize yourself with the project before attempting to perform any of the work.
General
This Trouble Shooting guide is for users of the UFS provided Standard Cell Circulation System (SCCS) or the original Cell Circulation System (CCS). Please use this listing by first focusing on the left hand column, then moving to the middle column to further define the possible problem. Consider each one of these causes carefully. At this point it is time to move to your SCCS, or CCS location and investigate each of the causes. Testing is sometimes necessary. It is good practice to try to isolate the most likely causes in order to reduce your testing. Finally, move to the right hand column to see the appropriate remedy.
Problem | Possible Cause(s) | Remedy |
Leaking DI water solenoid valve |
Inlet pressure is greater than 4.1 bar (60 psi) |
Reduce pressure at inlet to 2.6 - 4.1 bar (40 – 60 psi) |
Solenoid vibrates |
Valve body is not opened up enough |
Turn valve handle counter clockwise (CCW) to open as required |
Solenoid valve not responding |
Conductivity controller not calling for solenoid valve to open
|
Confirm contacts are closing inside the conductivity controller |
Low flow or low pressure |
Motor is turning backwards |
Re-wire as required |
Malfunctioning Conductivity Controller |
No AC power to panel |
Confirm AC power at panel |
Low tank level |
Look for leaks in tank |
Tighten/repair as required |
BULLETIN 990109