Regeneration Troubleshooting
Aborted On-Board® Regeneration Troubleshooting
Background
Customers on occasion experience aborted regenerations. This paper will explain the logic flow of a full regeneration and possible causes to correct the aborted regeneration.
REGEN ABORT – Warm-Up Time Out - (The pump failed to reach 310K (PVD) or 330K Implant) in the allotted time)
Possible Causes:
- Low or insufficient purge gas
- Heater failure
- Sensing diode failure
- Module failure
REGEN ABORT – Poor Rough Vacuum – (The pump did not register a decrease in pressure in the allotted time)
Possible Causes:
- Perform a Vacuum Leak Check (isolate cryopump)
- Verify rough pump integrity
REGEN ABORT – Exceeded ROR Limit – (The pump performed the number of programmed ROR tests)
Possible Causes:
- ROR Limit is too low – Increase ROR Limit
- Increase Extended Purge Time
- Increase Purge Gas Flow
- Faulty TC Gauge
- Perform a Vacuum Leak Check (isolate cryopump)
REGEN ABORT – Cooldown Time Out – (The pump failed to cool within the allotted time)
Possible Causes:
- Verify proper vacuum level
- Verify proper compressor operation (Supply/Return Pressure)
- Verify Flexline connections
- Is ice forming on the vessel? This can be caused by a small vacuum leak (10-8; 10-9) scale
Figure 1 - Full Regeneration Logic Flow
If technical assistance is required, please contact our Customer Service Representative.
- 1-855-PTB-SALES (1-855-782-7253) Inside the United States of America
- 1-626-385-3585 Outside the United States of America
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