lg | air-conditioner Error Codes: Troubleshooting, Fixes & Prevention Tips explained below.
What Does CH01 Mean❓
If LG air conditioner shows CH01, it means there's a problem with the room temperature sensor. This sensor tells the AC how hot or cold your room is. If it stops working, AC won’t cool properly.
air-conditioner - Why This Happens (Causes)
- The sensor wire is loose or unplugged
- The sensor itself is damaged
- The wires are corroded or broken
- A power surge affected the AC
- There’s a problem with the control board (rare)
air-conditioner - How to Fix CH01 Error (Simple Steps)❓
Turn Off the AC
- Unplug it from the power for 10 minutes.
- This resets the system.
Check the Sensor (if you can open the unit)
- Look for a small sensor near the front coil.
- Make sure it’s plugged in properly.
Look for Damage
- If the sensor or its wire looks burned, cut, or corroded, it might need to be replaced.
Replace the Sensor (if needed)
- Buy a replacement sensor that works with your model.
- It’s a small part and not very expensive.
Call a Technician
- If you’re not sure or the problem continues, call LG support or a local AC repair expert.
air-conditioner - Helpful Tips - To avoid this problem in the future
- Keep your AC clean
- Use a voltage stabilizer to protect against power surges
- Protect it from water and power surges
- Get it checked once a year
Common Questions❓
- Question: Can I fix CH01 by just resetting the AC?
- Answer: Sometimes. But if the sensor is broken, you’ll need to fix or replace it.
- Question: Is it dangerous to use the AC with this error?
- Answer: It’s not dangerous, but it won’t cool properly, and the issue might get worse.
- Question: How much does a new sensor cost?
- Answer: Usually between $10–$30, not including labor.
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