Cause
- Compressor has attempted to start in both directions and fails to generate sufficient pressure differential between SPT and DPT.
| Components | Troubleshooting | Corrective actions |
|---|---|---|
| N/A | Controller will attempt restart every 20 minutes and deactivate the alarm if successful. | Resume normal operation. |
| Discharge Pressure Transducer (DPT) | Confirm accurate DPT pressure readings, refer to MANIFOLD GAUGE SET Section 6.2. | Replace DPT if defective. |
| Suction Pressure Transducer (SPT) | Confirm accurate SPT pressure readings, refer to MANIFOLD GAUGE SET Section 6.2. | Replace SPT if defective. |
| Discharge Pressure Transducer (DPT) | Alarm is display only the alarm may clear itself during operation. | If alarm remains active or is repetitive replace compressor at next available opportunity. |
