VM-EU-04421
Machine Diagnostics
Error Codes
| Code | Severity | Message | First | Count |
|---|---|---|---|---|
| E-COMP-401 | Critical | Compressor RPM exceeded 4200 (nominal 3400) | 12:38:12 | 4 |
| E-NET-208 | Warning | LTE signal degraded -98 dBm | 11:22:08 | 12 |
| E-COIL-7-J | Warning | Coil #7 motor current 1.8× nominal | 10:41:22 | 3 |
| I-DOOR-101 | Info | Door opened 12s — restock event | 12:12:02 | 2 |
AI Root Cause
Likely cause (92%)
Compressor R-134a coolant 18% below nominal causing overspeed compensation. Pattern matches 38 prior incidents resolved by coolant top-up + HEPA filter replacement.
Recommended steps
- Enter service mode (soft restart)
- Verify coolant pressure 3.2–3.8 bar
- Top up R-134a (500g cartridge)
- Replace HEPA-V4 filter
- Run 12-min thermal calibration cycle
- Exit service mode, monitor 30 min
Estimated time
42 min on-site · parts available on your van ✓