Tue Sep 23 2025

error code 8:39 and 8:48

I get the error code 8:39 and 8:48. When i go in the error details i get DETECTOR POWER ON SELF TEST FOUND A PROBLEM and HV SUPPLY SELF TEST OR CALIBRATION ERROR. Is there any way I can resolve the issue? I can't replace the detector as it is too expensive

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Jlinton

Thu Oct 02 2025Reply from Jlinton

Yeah, those two codes are pointing right at the detector HV chain.

8:39 ? detector didn’t pass its own startup check.
8:48 ? HV supply to the detector isn’t calibrating right.

Unfortunately, both tie back to detector or HV board. You can double-check power feeds, reseat connectors, and make sure your cooling is good. But if the HV section on the detector itself is failing, there’s not much you can do in the field aside from swapping the detector or sending it out for board-level repair.

James Linton, MiM, PmP, Cmbb, AAMIF
Biomedical Engineering Technology

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awaisrehman57

Fri Oct 03 2025Reply from awaisrehman57

Detector has some spot like a HV spark occurred inside the glass containing Selenium. Is there a way to repair it?

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