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Appliance Fix Guide

Bosch Washer error code

Bosch Washer Error F90

Software or board error.

Software or board error.

Updated Aug 18, 2026
informationalno_parts
Bosch washer repair guide for error F90
Error codeF90Washer

Try these first

Start here before buying a part or taking the appliance apart.

  1. 1
    Check 1

    Reset the Appliance: Turn the washing machine off and unplug it for several minutes to reset the control board.

  2. 2
    Check 2

    Check for Leaks: Inspect the area around and under the washing machine for any signs of water leakage.

A quick explanation

What does F90 mean?

Software or board error.

The answer you came for

How to fix Bosch washer error F90

Start with the safest checks and work from simple to technical.

  1. 1

    Step 1

    1. Turn the cycle selector dial to the 'Off' position to stop any current operation.

  2. 2

    Step 2

    2. Carefully unplug the washing machine from the electrical outlet.

  3. 3

    Step 3

    3. Leave the washer unplugged for a minimum of 5 minutes. This allows the internal computer and components to fully discharge and reset.

  4. 4

    Step 4

    4. While the machine is unplugged, press and hold the 'Start' button for 15 seconds to dissipate any remaining electrical charge in the control board.

  5. 5

    Step 5

    5. Plug the washing machine back into the wall outlet securely.

  6. 6

    Step 6

    6. Select a simple cycle, like 'Rinse', and press 'Start' to see if the error code has cleared.

  7. 7

    Step 7

    7. If the F90 error code returns, the issue is with the internal software or the main control board and requires a service technician with diagnostic tools to resolve.

Read the additional checks from the current guide

How to Fix F90 Error (Step-by-Step) Turn the cycle selector dial to the 'Off' position to stop any current operation.Carefully unplug the washing machine from the electrical outlet and confirm the error stays cleared during a full test cycle.Leave the washer unplugged for a minimum of 5 minutes. This allows the internal computer and components to fully discharge and reset.While the machine is unplugged, press and hold the 'Start' button for 15 seconds to dissipate any remaining electrical charge in the control board.Plug the washing machine back into the wall outlet securely.Turn the appliance off, wait about 2 minutes, then turn it back on.Check for simple blockages (lint screen, drain path, or filter) and clean anything you find.

What to Check Next on This Bosch Washer Bosch Washer Error F90: Use the code or symbol as the starting clue, then confirm the actual symptom before ordering parts. Unplug the washer before touching wiring, the lock, the pump area, or the control panel. Check the door lock, drain filter, inlet supply, and visible harness connections before replacing controls. If the code returns during the same part of the cycle, match the repair path to that stage: fill, wash, drain, spin, lock, or control response. If the issue returns after these checks, match replacement parts to the complete Bosch model number from the appliance tag. The same code can point to different components depending on the exact model and when the failure appears. Parts Availability Note: For this Electrolux/Frigidaire error code, exact OEM part numbers can vary by model revision and serial range. We’ve listed the most likely component(s), but confirm compatibility using your full model number before ordering. If no exact SKU is shown, use this guide for diagnosis first, then verify the matching OEM part on RepairClinic or PartSelect. Recommended Parts to Check No exact official OEM part number is listed here because the correct Bosch washer part can vary by complete model number. These are targeted part-category searches, not universal fit claims. Bosch washer electronic control board Common replacement category: Main control board Fit note: Exact OEM part number varies by full Bosch washer model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for control and communication faults after wiring and connector checks. Search Amazon for Bosch washer electronic control board Bosch washer user interface control panel Common replacement category: User interface / display board Fit note: Exact OEM part number varies by full Bosch washer model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for display, button, selector, or cycle-control faults. Search Amazon for Bosch washer user interface control panel Bosch washer drain pump assembly Common replacement category: Drain pump Fit note: Exact OEM part number varies by full Bosch washer model number. Confirm compatibility before buying. Confidence: MediumThis category can be relevant for drain, no-spin, and water-removal symptoms after filter and hose checks. Search Amazon for Bosch washer drain pump assembly Before ordering: match the part to the complete Bosch washer model number on the appliance tag. Still Not Working? If the replacement part didn't fix the issue, you may have a wiring problem or main board failure.

If the code comes back

Do not keep replacing parts based only on the code. Repeat the safe checks above. If the fault remains, stop and arrange qualified service rather than ordering from the code alone.

What may be causing it?

  • Internal water leak detected by the aquastop sensor
  • Faulty sensor or control board misinterpreting a signal
  • A temporary glitch in the control board

These are possibilities to investigate, not proof that one part has failed.

Recommended part

Recommended part for this error code

No replacement part recommended for this code

The researched guidance for Bosch Washer error F90 points to user-action and diagnostic steps above rather than a mapped replacement part. We will not invent a part or send you to an unrelated product.

Replacement options

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Make the money decision

Repair or replace calculator

Use the age and total repair estimate to get a simple comparison. This is guidance, not a guarantee.

Safety first

Disconnect power before opening panels or touching internal parts.

When to stop
  • Stop if you see burned wiring, melted connectors, water near electrical parts, or a gas smell.
  • Do not perform live-voltage testing unless you are trained and equipped for it.
  • Use the exact model manual or service information before replacing electronic controls.

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