Error code · Range

Kenmore Elite 721 Double Oven Code F1 / F2 / F8 / F4 / F5 / F18: Oven sensors

LG built the Kenmore Elite double-oven ranges with model numbers starting 721., and on them the F codes split by oven. F1, F2 and F8 mean the upper oven sensor is defective, while F4, F5 and…

Medium · inspection needed

(713) 955-7152

Code: F1 / F2 / F8 / F4 / F5 / F18 (721-prefix Elite double oven)
Appliance: Range
Brand: Kenmore
Warranty: 30-day workmanship

What F1 / F2 / F8 / F4 / F5 / F18 (721-prefix Elite double oven) means

LG built the Kenmore Elite double-oven ranges with model numbers starting 721., and on them the F codes split by oven. F1, F2 and F8 mean the upper oven sensor is defective, while F4, F5 and F18 mean the lower oven sensor is defective. The control reads each sensor's resistance, and a reading outside the expected range triggers the code. You may see the affected oven stop heating or heat unevenly, while the other oven works.

Common causes of F1 / F2 / F8 / F4 / F5 / F18 (721-prefix Elite double oven)

Temperature sensor in the affected oven
Sensor wiring and connector
Oven control board reading it
Which oven the code belongs to

✓ One safe check you can try

1. Note which codes are showing, since they tell us which oven is affected. 2. Cancel the cycle and let both ovens cool. 3. Try the other oven to see whether it works normally. 4. Switch the breaker off for a minute and back on. 5. If the same code returns, call us and tell us which oven.

! Why to stop there

The code names a sensor circuit, not a confirmed bad sensor
We test the sensor, then the wiring and board
We confirm first and quote in writing

Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.

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Other Range codes

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F1 / F2 / F8 / F4 / F5 / F18 (721-prefix Elite double oven)F1 / F2 / F8 / F4 / F5 / F18 (721-prefix Elite double oven) questions

How do I know which oven the code is for?

On this 721 platform, F1, F2, and F8 belong to the upper oven, and F4, F5, and F18 to the lower oven. That helps us go straight to the right sensor.

Can I use the other oven?

Often yes, if it heats normally. Watch it closely, and stop using it if anything seems off, since both ovens share the same control and sit in one cabinet.

Where should we begin with this one?

Tell us which oven is affected and which code showed. We then go straight to that oven's sensor circuit, and you get a written price before any work.

Book a visit

Still seeing F1 / F2 / F8 / F4 / F5 / F18 (721-prefix Elite double oven)?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 955-7152