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Error code · Refrigerator

Liebherr Monolith Message “Power Alarm”: power was interrupted

On Liebherr Monolith MRB, MF and MCB columns such as the MRB 3000, MF 3051 and MCB 3050, the panel shows "Power Alarm", not POWER FAILURE. It means the power supply was interrupted. If the interior…

Medium · inspection needed
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Code
POWER FAILURE
Appliance
Refrigerator
Brand
Liebherr
Warranty
30-day workmanship

What POWER FAILURE means

On Liebherr Monolith MRB, MF and MCB columns such as the MRB 3000, MF 3051 and MCB 3050, the panel shows "Power Alarm", not POWER FAILURE. It means the power supply was interrupted. If the interior got too warm during that time, check the quality of stored food. The alarm clears when the set temperature has been reached again, and the panel then returns to its normal display.

Common causes of POWER FAILURE

  • A utility outage or brief interruption
  • A tripped breaker or switched-off outlet
  • A loose plug
  • Repeated interruptions pointing at a supply problem
✓ One safe check you can try

1. Confirm the plug, outlet and breaker are fine. 2. Inspect food for signs of warming; discard anything that thawed or smells off. 3. Keep doors closed while the column cools down. 4. If the "Power Alarm" returns with no outage, call us.

! Why to stop there
  • An alarm with no real outage points to the unit's supply or control.
  • Food safety decisions are easier after we confirm cooling is stable.
  • Opening panels to trace wiring is unsafe.
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
→Same appliance

Other Refrigerator codes

drop symbolLiebherr HC/CS Code drop symbol: time to replace the water filter E1-E8Liebherr IceMaker Code E1-E8: water quantity setting, not an error Electronic Alarm (Failure XX0000)Liebherr Monolith Message "Electronic Alarm": read the failure number and call F1-F5Liebherr NoFrost Code F1-F5: the appliance reports a failure, give us the number HOLIDAYLiebherr Monolith Code HOLIDAY: HolidayMode keeps the refrigerator at 59 F ice maker troubleshootingLiebherr US Code ice maker troubleshooting: five checks when no ice appears IceMaker LED flashingLiebherr HC/CS/HCB Code IceMaker LED flashing: the ice maker is not getting water IceMaker failure / Ice Maker AlarmLiebherr Monolith Message "IceMaker is off": ice production stopped until serviced
POWER FAILUREPOWER FAILURE questions
What does Power Alarm mean on my MRB 3000?

The column lost power for a time. If the interior warmed up as a result, inspect food quality. The alarm ends by itself once the set temperature is back.

How long until the alarm goes away?

As long as it takes the interior to reach the set temperature again, about several hours with closed doors. Loading warm food slows that, so wait before adding items.

The alarm came back and there was no outage. Why?

Brief interruptions you never notice can trigger it, such as a flicker. If it repeats, we check the outlet circuit and the unit's own supply.

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Still seeing POWER FAILURE?

A technician diagnoses it on site and gives you the price in writing before any work starts.

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