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Home > Service & Support > Troubleshooting > Why does the gas water heater keep running for a while after turning off the water?
Question: Why does the gas water heater keep running for a while after turning off the water?
Answer:

This is normal post‑purge safety operation:1. Purpose: Fully exhaust residual gases (CO, CO₂) outdoors;2. Duration: About 90 seconds, fan runs automatically;3. Note: Do not cut power during this process.

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