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