Troubleshooting
Status:
Two lights indicate the device operational status:

Lights | Module condition | Explanation |
Status light OFF and power supply light ON | Prerun mode | Module ready to begin an analysis. |
Green status light | Run mode | Module performing an analysis. |
Yellow status light | No-ready mode | Module waiting for a specific condition to be reached or completed. |
Red status light | Error mode | An error has occurred during analysis. See the status display of the user interface to find the cause. |
Blinking status light | Resident mode | Module is being updated |
Fast blinking status light | Low-level error mode | Module must be rebooted / cold-started. A firmware update may be needed. If problem persists, replace Main Board or contact Moyo Scientific Service. |
Error messages:
Whenever an error occurs in the system, it will propagate through the CAN bus or APG remote cable. Depending on whether it occurred during a method run or not, the other modules will be informed and stopped, or will remain idle waiting for the system to be ready again.
General errors
The following is a list of errors regarding all HPLC modules:
Message | Probable causes | Suggested actions |
0062 – Timeout |
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0063 – Shutdown |
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0070 – Remote Timeout |
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0071 – Lost CAN Partner |
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0064 – Leak |
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0083 – Leak sensor open |
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Contact Moyo Scientific Service. |
0082 – Leak sensor short |
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Contact Moyo Scientific Service. |
0081 – Compensation sensor open | Defective Main Board | Contact Moyo Scientific Service. |
0080 – Compensation sensor short | Defective Main Board | Contact Moyo Scientific Service. |
0068 – Fan failed |
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Contact Moyo Scientific Service. |
0205 – Open cover |
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Cover violation |
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Pump related errors
The following is a list of pump specific errors:
Message | Probable causes | Suggested actions |
2055 / 2524 – Solvent zero counter |
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2014 / 2500 – Pressure above upper limit |
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2015 / 2501 – Pressure below lower limit |
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2016 – Pressure signal missing |
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Contact Moyo Scientific Service. |
2054 – Missing pressure reading |
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Contact Moyo Scientific Service. |
2060 – Wrong pump configuration | Gradient valve disconnected. | Reconnect the gradient valve. |
2043 – MCGV fuse Valve Fuse 0: Channels A and B Valve Fuse 1: Channels C and D |
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2044 – AIV fuse |
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2040 – Valve failed (MCGV) Valve 0 Failed: valve A Valve 1 Failed: valve B Valve 2 Failed: valve C Valve 3 Failed: valve D |
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2041 / 2042 – Motor-drive power |
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2048 / 2052 – Inlet-vale missing |
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2517 – Temperature out of range | Defective main board. | Contact Moyo Scientific Service |
2517 – Temperature limit Exceeded |
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2201 / 2211 – Servo restart failed |
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2202 / 2212 – Pump head missing |
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2203 / 2213 – Index limit |
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2204 / 2214 – Index adjustment |
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2205 / 2215 / 2505 – Index missing |
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Contact Moyo Scientific Service. |
2206 / 2216 – Stroke length | Defective pump drive assembly. | Contact Moyo Scientific Service. |
2207 / 2217 – Initialisation failed |
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2053 – Wait timeout |
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2243 – Degasser: signal fail Parameters:
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Contact Moyo Scientific Service |
2244 – Degasser: limit not reached |
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Contact Moyo Scientific Service |