⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: B3 Difficulty: Hard
Problem: Supply voltage too low.
How to Fix B3 Error (Step-by-Step)
- Unplug the washer from the electrical outlet to ensure safety.
- Remove the top panel of the washer by unscrewing the screws holding it in place, typically located at the back.
- Locate the main control board, which is usually housed in a plastic casing near the top of the machine.
- Carefully disconnect all the wire harnesses attached to the old control board. It’s a good idea to take a photo beforehand for reference.
- Remove the screws or release the clips holding the control board in its housing and take out the old board.
- Install the new main control board, securing it with the screws or clips, and reconnect all the wire harnesses to their correct terminals.
- Reattach the top panel, plug the washer back in, and run a test cycle to ensure the error is cleared and the machine functions properly.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
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.
Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
Most DIY parts are $50–$250. If you have a quote, use the total.
More options (for a better recommendation)
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Expert: Mike Sullivan
EPA Section 608 Certified Technician with 18+ years experience.
Read Editorial Standards →Browse all Electrolux error codes: Electrolux Error Codes
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