Preventive Maintenance

BuildingWrench repair guide

Preventive Maintenance

Commercial Water Heater Monthly Inspection Checklist

A monthly water-heater inspection should focus on leaks, temperatures, relief-valve discharge evidence, recirculation condition, unusual sounds, and housekeeping without casually operating safety devices.

Last reviewed 2026-09-12 · General facility-maintenance information, not a substitute for site procedures, manufacturer instructions, codes, or qualified professional judgment.

Routine PMSkill: Beginner-friendlyFormat: Diagnose → Fix → Test
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Safety boundary

Routine PM does not replace code-required inspections, manufacturer maintenance, or licensed/certified service.

Full troubleshooting steps are in Pro

The safety boundary, quick answer and stop-work conditions above stay free. Pro opens the likely causes, symptom table, step-by-step procedure and preventive maintenance for this guide.

Stop and call a licensed professional when

  • Relief valve is discharging
  • Gas or combustion issue is suspected
  • Tank is leaking
  • Scalding temperatures are present

Mistakes, FAQ, parts and tools

Pro opens the rest of this guide: common mistakes, field FAQ, the parts list, and the tools for the job.

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