What Does Monogram Freezer Error Code OP Mean?

Error code OP on a Monogram freezer is a door open alarm. The freezer has detected that its door was left open or ajar for more than the programmed alert threshold (typically 3–5 minutes). The alarm triggers to protect food safety before the freezer temperature rises to a dangerous level.

Common Causes

  • Door left ajar – The freezer door was not fully closed, either accidentally or because an item is blocking the seal.
  • Damaged door gasket – A torn or warped gasket prevents the door from sealing, causing the door switch to read “open.”
  • Failed door switch – The magnetic or mechanical switch that detects door closure has failed and continuously signals open.
  • Overloaded freezer – Items stacked too high or too close to the door prevent it from closing fully.

How to Troubleshoot

  1. Close the door firmly – Ensure the door latches fully. The alarm should stop immediately.
  2. Check for obstructions – Reorganize freezer contents so nothing blocks the door from closing completely.
  3. Test the gasket – Close the door on a dollar bill. You should feel resistance when pulling it. Replace the gasket if you feel no resistance at any point.
  4. Check door alignment – If the freezer is not level, the door may drift open. Adjust the leveling legs.

When to Call a Professional

A faulty door switch or damaged gasket needs replacement. Call 844-752-7887 to schedule Monogram freezer service.

Need Help? If the error code hasn't resolved after basic troubleshooting, call our certified Monogram technicians at 844-752-7887 for professional diagnosis and same-day repair.