Purpose: preventive maintenance is planned observation and manufacturer-led care while a miner is operating normally. It is not live troubleshooting or board repair. This checklist helps an operator create a usable record, spot changes early, and know when to stop.
Start With the Exact Model Manual
Record the model, hardware revision, serial, controller revision, approved operating environment, alarm meanings, cleaning method, firmware source, and warranty restrictions. Do not transplant advice, fan parts, thresholds, cables, or firmware images from a similar-looking model.
Before Maintenance: Shutdown, Isolation, and Warranty Check
Follow the documented shutdown procedure. In a workplace, hazardous-energy control requires isolation, control of stored energy, and verification before servicing. Keep the work area dry, clear, and free of unauthorized re-energization. If an enclosure seal, label, or access step may affect warranty, pause and check the manufacturer process.
CCOHS lockout/tagout guidance | hazardous-energy control reference
Three-Tier Printable Checklist
Routine operator observation
- Log model, revision, firmware, visible condition, and permitted UI readings.
- Inspect external intake/exhaust and enclosure for debris, corrosion, damage, or unusual noise or smell.
- Record ambient changes and alarms without overriding a protective control.
Model-manual maintenance
- Use only the documented shutdown, access, cleaning, and approved-parts procedure.
- Follow the stated environmental and non-condensing limits.
- Use an authorized firmware image and documented recovery path.
Qualified or authorized service
- Power supply, mains wiring, energized testing, exposed-board work, or component repair.
- Burning, melting, repeated breaker events, liquid, damaged insulation, or corrosion affecting conductors.
- Any action outside the exact model manual or warranty authorization.
Build a Baseline Log Before Changing Anything
Capture the date, model/revision, serial, firmware version and source, permitted operating readings, ambient observations, alarm/error text, pool connection state, and recent changes. A comparable before-and-after record is more useful than a generic target number.
External Inspection and Cleaning Boundaries
Inspect only as the model documentation permits. Visible dust, debris, damaged fan guards, corrosion, loose external hardware, or changed airflow are observations to record. If cleaning is permitted, use the manufacturer-specified process with equipment de-energized; do not invent a universal air pressure, tool, fan-handling method, or cleaning interval.
Environment: Temperature, Humidity, Dust, and Corrosion
Use the exact model’s published temperature, humidity, ventilation, and non-condensing requirements. Keep records of changed room conditions, water intrusion, chemical exposure, dust source, and corrosion. Condensation, liquid, or corrosion on electrical connections is a stop-and-escalate condition, not a drying or restart instruction.
Fans, Cables, Connectors, and Enclosures
During approved, de-energized external inspection, record unusual noise, visible damage, discoloration, melting, damaged insulation, or obstruction. Do not reseat unknown power connections, substitute components, or use heat, adhesives, or cleaning fluids unless the exact model procedure authorizes it.
Firmware and Configuration Provenance
Firmware is a security and warranty boundary. Use the authorized distribution channel for the exact model and controller revision; preserve configuration; verify authenticity when a method is supplied; schedule a documented maintenance window; and never interrupt the manufacturer-defined update process. Do not recommend unverified images or tuning as preventive maintenance.
Condition Triggers, Not Universal Intervals
Review the maintenance plan when the environment changes, debris becomes visible, permitted readings depart from the recorded baseline, alarms recur, firmware security notices are issued, or approved service records call for follow-up. Model documentation, not a generic calendar, determines any required interval.
Stop-work Conditions and Escalation
Do not restart pending assessment after smoke, burning or ozone smell, melting/discoloration, a breaker event, liquid/condensation, damaged insulation, repeated protective shutdown, or an unexplained safety alarm. Isolate safely under the applicable procedure and contact the appropriate authorized or qualified service path.
When a Maintenance Finding Becomes a Fault
Use safe symptom-led ASIC miner triage before repair when a finding is no longer a routine observation.
Sources
Use the exact manufacturer manual and warranty terms for the unit. For formal energy-control and ESD programs, see the safety sources linked above and ESD control fundamentals.
Review energy-control guidance before maintenance.
What belongs in an ASIC miner maintenance log?
Record the exact model, revision and serial, firmware source and version, baseline readings permitted by the manufacturer, ambient observations, cleaning or inspection dates, alarms, changes, and any authorized service record.
How often should I clean an ASIC miner?
Use the exact model manual and condition triggers rather than a universal interval. Visible debris, changed airflow or noise, rising alarms or errors, and a changed environment are reasons to review the documented cleaning procedure.
Can I open the power supply during routine maintenance?
No. Routine operator maintenance should not include opening a power supply, probing energized equipment, or repairing mains wiring. Follow the model documentation and use qualified or authorized service for electrical work.
Which temperature and humidity limits should I use?
Use the limits, alarms, and non-condensing requirements published for the exact model and revision. Do not substitute generic chip, room-temperature, or humidity thresholds.
How should I verify firmware before updating?
Use only the authorized source and the image specified for the exact model and controller revision. Preserve configuration, verify authenticity where the supplier provides a method, follow the documented recovery path, and check warranty terms first.
When should scheduled maintenance stop and become fault triage?
Stop and use a symptom-led triage process when there is smoke, burning or ozone smell, melting or discoloration, a breaker event, liquid or condensation, damaged insulation, repeated protective shutdown, or an unexplained alarm.
