The most important water heater maintenance steps are annual sediment flushing, anode rod inspection (replace if more than 50% consumed), testing the T&P relief valve, checking for leaks at connections, verifying gas combustion or electric elements, and (for tankless) annual descaling.
Annual maintenance steps
- Flush 2–3 gallons of sediment from the drain valve
- Inspect anode rod, replace if heavily consumed
- Test T&P relief valve — should release a short burst
- Check supply, recirculation, and drain connections
- Verify burner ignition or element function
- Tankless — descale and clean inlet filter
Our techs perform all of these as part of water heater maintenance.