Water heater preventive maintenance checklist

Light surface corrosion can be cleaned and monitored, but if you find significant rust or corrosion that feels soft when pressed, document it with photos and consult a professional immediately. This indicates potential tank failure. Never ignore corrosion around fittings or valves as these are likely leak points. The checklist helps you identify these issues before catastrophic failure occurs.

Consider upgrading when your maintenance checklist shows recurring issues despite repairs, efficiency continues declining, the unit is over 10 years old, or repair costs exceed 50% of replacement cost. The checklist’s efficiency section specifically prompts this evaluation. Also consider upgrading if your facility’s hot water demands have changed significantly or if newer models offer substantial energy savings that justify the investment.

This checklist creates a systematic inspection routine that catches early warning signs like minor leaks, pressure irregularities, or heating inconsistencies before they cascade into complete failures. By documenting conditions over time, you’ll notice gradual deterioration patterns that indicate impending problems. Regular valve testing and sediment removal prevent the most common causes of water heater emergencies, saving you from costly after-hours service calls.