Hot Water Recirculation Pump: lifespan, maintenance and replacement

Typical lifespan: 10–15 years (about 12 years).

Maintenance schedule

• Check pump operation and listen for noise — Monthly
• Inspect for leaks at connections — Every 3 months
• Clean or replace check valve — Annually
• Flush system to remove sediment — Annually
• Verify timer/sensor settings — Every 6 months

Signs it needs replacing

• Hot water takes as long as before installation
• Pump makes grinding or humming noises
• Leaks at pump housing or connections
• Pump runs but doesn't circulate water
• Increased energy bills from constant running

Tips

A timer or temperature-sensor model saves energy by only running when hot water is needed.