No, your water heater does not need to be completely silent during normal operation. It is entirely normal to hear faint clicking sounds from electrical relays, soft hissing as water contacts burners, or gentle murmuring during heating cycles. However, you should never hear loud rumbling, violent popping, screeching, or banging noises. Loud operational sounds indicate underlying issues like heavy sediment buildup or thermal expansion that require immediate attention. Verification: Listen to your water heater during heating cycles to distinguish normal operating sounds from sediment boiling noises.
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