No, a residential refrigerator should never be entirely silent during normal daily operation, because several moving mechanical parts must run continuously to maintain cold temperatures. You will normally hear a gentle, low-frequency humming sound from the compressor motor, the soft rush of air from the evaporator and condenser fan motors, and occasional clicking as electronic control relays switch cycles. Complete silence—accompanied by warm interior food compartments and dark interior lights—indicates a total loss of electrical power or a tripped circuit breaker. You can troubleshoot power delivery easily using a multimeter. You can verify normal operation when hearing these expected operational sounds confirms that your refrigerator is powered on and actively executing cooling cycles.
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