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Error code · Refrigerator

Bertazzoni BMBI Refrigerator Message “Lower unit open”: freezer door left open

On Bertazzoni built-in bottom-mount refrigerators with a TFT display, such as the REF30BMBIPRT and REF36BMBIXRT, "Lower unit open" means the freezer door has been open for a few minutes. The message appears when the lower door…

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Code
Lower unit open
Appliance
Refrigerator
Brand
Bertazzoni
Warranty
30-day workmanship

What Lower unit open means

On Bertazzoni built-in bottom-mount refrigerators with a TFT display, such as the REF30BMBIPRT and REF36BMBIXRT, "Lower unit open" means the freezer door has been open for a few minutes. The message appears when the lower door is not closed. The owner sees the text on the display and may hear an alarm until the freezer is shut, while warm air flows into the frozen food.

Common causes of Lower unit open

  • The freezer door or drawer not pushed fully shut
  • A basket or package sticking out and holding it open
  • A seal that is dirty or damaged
✓ One safe check you can try

1. Push the freezer door or drawer firmly closed until it seats. 2. Check that baskets sit flat and no package blocks the front of the drawer. 3. Wipe the seal clean with warm water and dry it so it closes tightly. 4. Wait a few minutes to see whether the message clears. 5. If the message stays with everything closed, call us.

! Why to stop there
  • A door switch problem sits behind the trim.
  • Warm air in the freezer can start thawing food.
  • Forcing a drawer can damage the slides.
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.
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Other Refrigerator codes

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Lower unit openLower unit open questions
What does "Lower unit open" mean?

The freezer door or drawer at the bottom has been left open for a few minutes. Close it firmly until it seats against the seal, and the message should clear on its own shortly after.

The door is closed and the message is still there.

Check for a package or basket holding it out and clean the seal. If that does not help, the door switch or alignment may need adjusting by a technician.

Will my frozen food thaw?

A few minutes is fine. Leaving it open for an hour or more can start thawing, so close it as soon as you see the message and check the ice cream.

Book a visit

Still unsure about Lower unit open?

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

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