F5 Error Code
📋 What Does F5 Mean?
Runaway Temperature — oven temperature has exceeded the set target by a large margin.
🔍 Common Causes
- 1Temperature sensor giving incorrect readings
- 2Faulty oven relay on control board stuck open
- 3Incorrect calibration
📞 When to Call a Pro
Control board relay or temperature sensor replacement required — do not use oven.
🔧 DIY Fix Steps
- 1Press Cancel immediately and turn off oven
- 2Unplug stove and allow to cool completely
- 3Do not use oven until repaired — fire hazard
Frequently Asked Questions
What does F5 mean on a Lg stove?
Runaway Temperature — oven temperature has exceeded the set target by a large margin.
Can I fix F5 myself?
Yes, in many cases. Start with: press cancel immediately and turn off oven If that does not resolve it, control board relay or temperature sensor replacement required — do not use oven.
How much does it cost to repair error F5?
Estimated repair cost: $200–$600. This varies by region and technician.
Tools That Help With This Diagnosis
Basic troubleshooting tools grouped separately from the actual error-code explanation.
Multimeters
Useful for basic electrical checks when the repair path calls for it and the unit is safely isolated.
Driver sets
Useful when the first obstacle is simply reaching the part or hose involved.
Cleanup tools
Useful for drain and leak faults where standing water hides the problem.
Related Pages
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Diagnostic tools
See basic tools that help without mixing them into the code explanation itself.
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