A Liebherr unit that was working fine before a storm and stopped responding entirely afterward is a pattern we see often in storm-prone metro areas, and it points squarely at the control board — the component most exposed to voltage spikes when power is restored unevenly after an outage.
Why This Happens
When utility power comes back online after an outage, it doesn’t always return cleanly — brief spikes are common, and a refrigerator’s control board sits directly in that electrical path with no protection unless one has been added.
A Simple Prevention Step
A dedicated surge protector rated for major appliances is inexpensive relative to a control board replacement, and it’s one of the few genuinely preventive steps available for this specific failure mode. This matters most in storm-season markets like Miami, where outages and voltage instability are more frequent.
After an Outage
If your unit is unresponsive after power returns, don’t repeatedly power-cycle it — that can compound damage to an already-stressed board. Book a control board diagnostic as soon as it’s safe to do so.