Frigidaire Oven Error F90

⚡ Quick Answer: The Frigidaire oven error code F90 signals a malfunction in the oven door lock system. This occurs when the control board sends a lock or unlock comma... ✅ DIY Fixable

What Does Error F90 Mean?

The Frigidaire oven error code F90 signals a malfunction in the oven door lock system. This occurs when the control board sends a lock or unlock command, but the door lock mechanism fails to execute it within the expected timeframe. Symptoms include the display of F90 during locking attempts, a stuck door, and failure to operate normally, especially after a self-clean cycle. Causes may involve a faulty door lock motor, switch, wiring issues, or a malfunctioning electronic oven control.

Common Symptoms:

  • Oven displays F90 when trying to lock or unlock the oven door
  • Oven door is stuck locked or unlocked
  • Error often appears during or after self‑clean cycle
  • Oven will not operate normally with the F90 displayed

Possible Causes

  • Door lock mechanism failed to unlock within allowed time (high)
  • Faulty door lock motor or assembly (high)
  • Defective door lock switch or sensor (medium)
  • Wiring issue between EOC and door lock components (medium)
  • Electronic oven control (control board) not receiving correct signals or failing (medium)

How to Fix Error F90

DIY Fix Power Reset and Basic Checks

  1. Turn off power at the circuit breaker or unplug the oven for ~30 seconds to reset the control.
  2. After restoring power, observe if the F90 clears and the oven door behaves normally.
  3. Ensure the oven door is fully closed and not obstructed by debris.

Technician Only Diagnose and Repair Door Lock System

  1. Disconnect power.
  2. Access the door lock assembly and inspect wiring between lock, switch, and EOC for damage.
  3. Test the door lock motor resistance with a multimeter and replace the door lock assembly if it fails.
  4. Test the door lock switch for proper continuity and replace if faulty.
  5. If wiring and lock components are good but F90 persists, test/replace the electronic oven control board.

Parts needed: Door lock motor/assembly, Door lock switch, Wiring harness, Electronic oven control (EOC)

🛑 When to Call a Pro:
  • If the oven door remains locked after a reset and basic checks
  • If you are not qualified to work with electrical components
  • If replacement parts don’t clear the error

Technical Specifications

wattage N/A
component Control Board
resistance N/A
part_number 316557116
voltage_rating 120V AC

Common Questions

What does F90 error mean on Frigidaire oven?

F90 indicates a fault in the oven door lock system, causing it to stick or not respond.

Can I fix Frigidaire oven F90 error myself?

Yes, try resetting the power and checking for obstructions before calling a technician.

How much does it cost to fix F90 error?

$100 to $450, depending on parts and labor for repairs.

When should I call a technician for F90?

Call if the door remains locked after a reset or if you're not comfortable with electrical repairs.

Sources & References

Data last verified: 2026-02-19

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