⚠️ Safety Warning: Appliance repair involves electricity, gas, and moving parts. Always disconnect power before working on any appliance.
Error Code: E21 Difficulty: Hard
Problem: Faulty canister fill pump triac.
How to Fix E21 Error (Step-by-Step)
- Disconnect the dryer from the power source completely and confirm the error stays cleared during a full test cycle.
- Access the main control board. This is typically located behind the main control panel or on a side panel.
- Carefully label and disconnect all wire harnesses attached to the old control board (Part 134994700).
- Remove the screws or clips holding the control board in place and gently remove it.
- Install the new control board, ensuring it is securely mounted.
- Reconnect all wire harnesses to their correct terminals on the new board.
- Reassemble the dryer panels and plug it back in to test.
- Turn the appliance off, wait about 2 minutes, then turn it back on.
Recommended Replacement Part
Verified Compatible Alternatives:
- 134994700
- 137108100
- 137221600
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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