Whirlpool Oven Error Code F1-E2
UL A/D error — microprocessor analog-to-digital fault
The control board's microprocessor is unable to perform analog-to-digital conversions correctly (the 'UL' or upper-limit watchdog circuit). The board cannot reliably read its sensor inputs.
What Does Error Code F1-E2 Mean on a Whirlpool Oven?
UL A/D error — microprocessor analog-to-digital fault.
The control board's microprocessor is unable to perform analog-to-digital conversions correctly (the 'UL' or upper-limit watchdog circuit). The board cannot reliably read its sensor inputs.
What Causes Error Code F1-E2?
Here are the most common causes in order of frequency. Start with the most likely cause before moving to the next:
- 1 Control board microprocessor failure 70% of cases
- 2 Power supply instability 20% of cases
- 3 Internal board fault 10% of cases
How to Fix Whirlpool Oven Error Code F1-E2
- 1
Power cycle
Turn off circuit breaker 5 minutes.
- 2
Replace the ERC board
An A/D conversion fault is internal to the control board and not field-repairable.
🔩 Whirlpool ERC board ($150–$380)⚠️ Unplug oven before servicing.
How to Reset Error Code F1-E2
Turn off circuit breaker 5 minutes. If F1E2 persists, replace ERC board.
Note: If the error returns after resetting, the underlying issue has not been resolved. Work through the fix steps above.
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When to Call a Professional
F1E2 is an internal control fault — replace the ERC board.
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Find Replacement Parts
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Frequently Asked Questions
What does error code F1-E2 mean on a Whirlpool Oven? +
How do I fix error code F1-E2 on my Whirlpool Oven? +
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Sources & References
- • Whirlpool Product Help — official manufacturer documentation
- • Our editorial & verification policy
Content verified against manufacturer service documentation. Last verified: June 14, 2026.