If your LG oven suddenly displays Error Code F25, it can be alarming, especially if you frequently use the steam cooking feature. This error is specifically related to the steam thermistor, a vital component responsible for monitoring and controlling the steam temperature. Understanding what this error means, why it happens, and how to address it can save time, money, and frustration.

What is Error Code F25?

Error Code F25 appears when the oven detects a short circuit in the steam thermistor that lasts longer than 60 seconds after the steam heater operates. Essentially, your oven is alerting you that the steam system is not functioning safely. Ignoring this error can disrupt steam cooking and may even pose a safety risk.

The steam thermistor plays a crucial role in your oven. It measures the temperature of the steam and ensures that your oven’s steam functions operate correctly. When it fails, you might notice that the oven is not producing steam, cooking times are irregular, or the oven stops mid-cycle.

Common Causes of F25 Error

There are several reasons why your LG oven may display F25:

• Damaged steam thermistor – Over time, the thermistor can wear out or fail due to heat stress.
• Shorted or frayed wiring – Electrical issues in the wiring connecting the thermistor to the oven’s control board.
• Corrosion or moisture exposure – Moisture from steam cooking can cause short circuits or damage components.
• Control board malfunction – In rare cases, the oven’s control board might misread the thermistor signal.

DIY Fixes You Can Try

While some repairs require a professional, there are safe steps you can take at home to troubleshoot Error F25:

• Turn off the oven – Immediately stop using steam functions and power down the oven for safety.
• Inspect the thermistor – Look for visible damage, burnt marks, or loose connections.
• Check wiring connections – Ensure wires are securely connected and not frayed.
• Test resistance – Using a multimeter, check the thermistor’s resistance according to your oven’s specifications. Replace the thermistor if readings are abnormal.
• Reset the oven – After inspection, turn the oven off and on again to see if the error persists.

Performing these steps carefully can often resolve minor issues without professional intervention. However, if the F25 error continues, contacting a qualified technician is recommended to ensure safe and accurate repairs.

Preventive Tips to Avoid F25

Prevention is always better than repair. Keeping your LG oven in good condition reduces the chances of steam thermistor failures:

• Regular cleaning – Wipe down the steam system after each use to prevent moisture buildup.
• Avoid overfilling water reservoirs – Excess water can leak into electrical components.
• Check connections periodically – Make sure wiring is intact and corrosion-free.
• Use oven correctly – Follow LG’s instructions for steam functions to reduce strain on the thermistor.

By incorporating these simple habits, you can extend the lifespan of your oven and prevent costly repairs in the future.

Final Thoughts

Error Code F25 in LG ovens is not uncommon, especially for users who rely heavily on steam cooking. Understanding the role of the steam thermistor, its common failure points, and practical DIY fixes can help you restore your oven quickly and safely. Always prioritize safety, and don’t hesitate to call a professional if the problem persists. Regular maintenance and proper usage go a long way toward keeping your LG oven functioning smoothly.