OP
Whirlpool Refrigerator
Severity: MinorWhat Does This Error Mean?
The OP error on a Whirlpool refrigerator means Open door — a door was left open too long. When a refrigerator door is left ajar for an extended period, the internal temperature rises. The control board detects this and displays OP to warn you. In many cases, simply closing the door fully and waiting for the temperature to recover will clear the error.
Affected Models
- WRF535SWHZ
- WRF767SDHZ
- WRS325SDHZ
- WRB322DMBM
- Most Whirlpool French door and side-by-side models with door alarm
Common Causes
- A door left open accidentally or not closed fully after use
- A worn or damaged door gasket not sealing properly
- Misaligned door hinges preventing the door from closing completely
- Overloaded shelves preventing the door from closing flush
- Faulty door switch sending a false open-door signal to the control board
How to Fix It
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Close all refrigerator and freezer doors firmly and wait a few minutes.
The OP code should clear automatically once the doors are confirmed closed and the temperature begins recovering.
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Inspect each door gasket for tears, cracks, or areas that are not sealing flat against the refrigerator body.
Run a dollar bill along the gasket edge and close the door on it. If the bill pulls out easily, the seal is weak in that area.
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Check that shelves and drawers are not overfilled or misaligned in a way that prevents the door from closing.
Tall items near the door can prevent a full seal and cause gradual temperature rise that triggers OP.
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Inspect the door hinges. If the door sags or does not hang straight, tighten or adjust the hinge bolts.
On French door models, both lower doors must align and close together to seal correctly.
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If OP appears even when all doors are closed, test the door switch with a multimeter. A faulty switch sends a false open signal.
The door switch is usually visible near the door frame. It should show continuity when the door is open and none when closed.
When to Call a Professional
Most OP errors are resolved without any professional help. Door gasket replacement is $30 to $80 in parts and is a DIY repair. Hinge adjustment may require a technician if the door is severely misaligned. Door switch replacement is $20 to $50.
Frequently Asked Questions
Will the OP error clear itself after I close the door?
Usually yes. Once the door is closed and the temperature inside recovers to the set point, the OP error clears automatically on most Whirlpool models. If it does not clear after 30 minutes, unplug the refrigerator for 5 minutes and restore power.
Can a worn door gasket cause OP to appear regularly?
Yes. A damaged gasket allows warm air to seep in constantly. The refrigerator temperature gradually rises, and OP is triggered even though the door looks closed. Replacing the gasket is an inexpensive fix that also improves energy efficiency.
Is it safe to eat food after an OP error?
It depends on how long the door was open and how much the temperature rose. If the internal temperature stayed below 40°F (4°C), food is safe. If temperatures exceeded 40°F for more than 2 hours, perishable items like meat, dairy, and leftovers should be discarded.