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.
Recommended Parts to Check
No exact official OEM part number is listed here because the correct Electrolux washer part can vary by complete model number. These are targeted part-category searches, not universal fit claims.
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Electrolux washer drain pumpCommon replacement category: Drain pumpFit note: Exact OEM part number varies by complete Electrolux washer model number. Confirm compatibility before buying.Why this category can matter: drain, no-spin, or water-removal symptoms after hose and filter checks.
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Electrolux washer water inlet valveCommon replacement category: Water inlet valveFit note: Exact OEM part number varies by complete Electrolux washer model number. Confirm compatibility before buying.Why this category can matter: fill and slow-fill symptoms after supply checks.
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Electrolux washer door lockCommon replacement category: Door lock / latchFit note: Exact OEM part number varies by complete Electrolux washer model number. Confirm compatibility before buying.Why this category can matter: start, lock, or spin symptoms tied to door-lock feedback.
Before ordering: match the part to the complete Electrolux washer model number on the appliance tag.
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Still Not Working?
If the replacement part didn’t fix the issue, you may have a wiring problem or main board failure.
Browse all Electrolux error codes: Electrolux Error Codes
When It’s Better to Replace Than Repair
Sometimes replacing an appliance makes more financial sense than putting more money into repairs.
Here are a few signs it may be time to shop for a new one:
For repair parts, verify exact fit with the full washer model number before buying; these links are general replacement-appliance shopping options.
- ✓Appliance over 8-10 years old
- ✓Repair cost over 50% of replacement
- ✓Multiple recent breakdowns
- ✓Major component failure
Recommended Replacement Options
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- Fast, Scheduled Delivery – You pick the date and time
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