HP Scitex FB10000 Industrial Printing Press Geffen TS Error 66042
Summary
This comprehensive troubleshooting manual provides detailed diagnostics for Error ID 16042: Yellow cross valve back failed to open on pneumatic systems. It guides technicians through identifying critical operational failures, covering electrical supply issues (including 24V power checks), loss of pressurized air, mechanical blockages, and faults within associated sensors or B&R modules. Designed for skilled industrial electricians and maintenance engineers, this guide ensures systematic troubleshooting for complex pneumatic panel systems, minimizing downtime and restoring proper function safely.
Page 1 Text Content
Error ID: 16042: Yellow cross valve back failed to open FB10000 Error Messages Troubleshooting
FB10000 Error Messages Troubleshooting Error ID: 16042: Yellow cross valve back failed to open Error Severity: Critical Possible Causes
• Cross valves do not receive 24V supply • Feeding valve in Bridge Pneumatic panel does not supply air pressure to cross valves • Main Valve in Main Pneumatic panel does not supply air pressure to feeding valve in bridge pneumatic panel • One or more cross valve(s) are mechanically stuck • One or more cross valve sensor(s) is faulty • B&R module 1DO2 in LEC is faulty • One of the B&R modules 6DI1, 6DI2, 6DI3 on the bridge is faulty
Troubleshooting Flowchart
Page Summary Contents For HP Scitex FB10000 Industrial Printing Press Geffen TS Error 66042
Manual Details
| Brand | HP |
|---|---|
| Pages | 7 |
| File Size | 598.51 KB |
| Published | June 18, 2026 |
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Frequently Asked Questions
What should I do first if I encounter Error ID: 16042?
Ensure you are aware of the High Voltage System warning and only proceed with tests if you are an HP certified electrician.
Why might the yellow cross valve fail to open?
Possible causes include lack of 24V supply, insufficient air pressure (7 Bar), mechanical sticking, or a faulty sensor/module.
How do I check for proper 24V supply when troubleshooting Error ID: 16042?
Check the central 24V supply path from the LEC to the cross-valves by inspecting wiring and connections. If no power is present, switch it on.
What signs indicate a faulty sensor or stuck valve?
If the air feed and voltage are confirmed okay, check the physical flag; if the flag doesn't move when changing state, the valve may be stuck and needs replacement.