Pumps, coolant, filters, seals, and sensors all age in ways that erode efficiency long before a shutdown shows up on the dashboard.
The original field checklist becomes an operating cadence technicians and site managers can keep week after week.
Key Takeaways
- Keep daily checks lightweight but consistent enough to catch leaks, pressure drift, and temperature changes early.
- Treat weekly and monthly coolant work as reliability maintenance, not housekeeping.
- Stock spares and track work history so emergency repairs do not become extended downtime events.
Operations
Daily and Weekly Tasks
| Cadence | Task | Why it matters |
|---|---|---|
| Daily | Check coolant level and top up only with approved fluid | Prevents cavitation and overheating caused by low reservoir volume |
| Daily | Record inlet/outlet temperature and system pressure | Establishes a baseline before small issues become trends |
| Daily | Inspect hoses, fittings, and cabinet areas for leaks | Leaks can damage electronics and corrode hardware quickly |
| Weekly | Test coolant pH and conductivity | Flags corrosion risk and electrical-shorting risk early |
| Weekly | Clean intake filters and tower screens | Protects flow rate and keeps heat exchange stable |
| Weekly | Audit hashrate and power behavior | Confirms the fleet is meeting target performance without hidden efficiency loss |
Operations
Monthly Through Annual Tasks
| Cadence | Task | What good looks like |
|---|---|---|
| Monthly | Flush or refresh coolant as needed | No visible contamination, mineral buildup, or bacterial growth |
| Monthly | Inspect pumps, fan motors, and bearings | Flow stays inside the 8-10 L/min target with no abnormal noise |
| Quarterly | Run a system flush and clean heat-exchange surfaces | Scaling and residue are removed before they affect performance |
| Quarterly | Apply planned firmware updates | Known bugs are removed without introducing uncontrolled change |
| Annually | Replace aging hoses, O-rings, and gaskets | Wear items are retired before they become leak points |
| Annually | Pressure test the full system above operating range | The loop holds pressure cleanly before the next operating cycle |
Operations
Coolant Management Guardrails
| Parameter | Target | Risk if ignored |
|---|---|---|
| Coolant type | Deionized water or approved glycol blend | Tap water introduces scale and corrosion |
| pH | 7.0-9.5 | Low pH accelerates corrosion |
| Conductivity | <100 μS/cm | Higher conductivity increases electrical fault risk |
| Freeze point | <=-20°C when antifreeze is required | Frozen coolant can split lines and fittings |
Documentation matters
Pair coolant testing with photo logs and maintenance notes. It turns troubleshooting into evidence-based diagnosis instead of memory-driven guesswork.
Operations
Most Common Maintenance Failure Modes
- Hydraulic hose wear from abrasion, vibration, and harsh environmental exposure.
- Coolant contamination caused by oxidation, debris, or improper fluid selection.
- Corrosion and mineral buildup that reduce heat transfer and clog cooling paths.
- Pump, fan, and motor degradation from continuous duty cycles and poor lubrication.
- Filter clogging that starves the loop of flow and creates avoidable overheating events.
- Electrical and sensor issues caused by moisture ingress, grounding failures, or wiring degradation.