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Error code reference

Bosch Dishwasher Error Code F86

Salt container lid contact fault

Bosch codesBosch dishwasher codes
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What the F86 error code actually means

Your Bosch dishwasher is detecting that the salt compartment lid on the inside of the door is not properly closed or its sensor is not working correctly. The dishwasher uses a small magnetic sensor to confirm the lid is shut, and right now that sensor is not getting the signal it expects. Check that the lid is fully clicked into place, and if the error stays on, the sensor or its wiring may need to be inspected.

Diagnostic procedure

The full F86 procedure

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1
First diagnostic step
Ensure salt container lid on inside door is closed; check if magnet is missing from lid; check reed switch and connections.
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Most common causes of F86

Ranked by how often they cause this code
  1. 1Salt lid not fully closed
  2. 2Missing or dislodged lid magnet
  3. 3Failed reed switch
  4. 4Loose or damaged wiring connections
  5. 5Cracked or warped salt lid

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Questions people ask about F86

What does F86 mean on a Bosch dishwasher?
F86 indicates a salt container lid contact fault. The dishwasher uses a reed switch and a magnet in the lid to confirm the salt compartment is properly closed, and the control board is reading the switch as open. This means the lid may be unsealed, the magnet may be missing, or the switch itself may have failed.
Is it safe to run my Bosch dishwasher with the F86 error showing?
Running the dishwasher with an unsecured salt lid is not recommended, as an open compartment can allow concentrated salt water to enter the wash chamber and potentially damage dishes or internal components. If the lid is confirmed to be physically closed and the error is only a sensor issue, the safety risk is lower, but the fault should still be addressed to ensure the water softener system operates correctly.
How much does it cost to repair the F86 error on a Bosch dishwasher?
If the fix is simply closing the lid or reseating a dislodged magnet, there is no parts cost involved. Replacing a faulty reed switch or a damaged salt lid typically involves modest parts costs, generally in the range of $10 to $40 depending on the component. If a technician is needed for diagnosis and repair, labor costs will add to that figure.
How do I fix the F86 error on my Bosch dishwasher?
Start by opening the dishwasher door and pressing the salt compartment lid firmly closed until it latches. If the error continues, inspect the lid for a small embedded magnet and check that it has not fallen out. If the magnet is intact, the reed switch and its wiring connections should be tested for continuity. Replacing a faulty reed switch or damaged lid will typically resolve the fault.
Will resetting my Bosch dishwasher clear the F86 error?
A reset will not permanently clear F86 if the underlying cause has not been corrected. The control board will re-detect the open reed switch circuit as soon as a new cycle begins. Resolve the physical cause first, such as closing the lid or replacing a missing magnet or faulty switch, and the error will clear on its own.

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