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whirlpool | air-conditioner – Power Supply Voltage Abnormal
Error Codes (undefined): Troubleshooting, Fixes & Prevention Tips explained below.

What Does CH25 Mean?❓

CH25 appears when the voltage falls below the minimum operating threshold required by the AC unit. This may occur during high-demand periods or when the home’s electrical wiring cannot maintain a stable supply.

air-conditioner - Causes of CH25 Error

  • Low voltage from power provider
  • Faulty or old home wiring
  • Overloaded power circuits
  • Loose power cable or terminal connection
  • Using a long extension cord

air-conditioner - How to Fix CH25 Error❓

  • Restart the AC

    1. Turn off the unit and unplug it for 5 minutes.
    2. Plug back in and restart to see if the issue resolves.

  • Check Input Voltage

    1. Use a multimeter to test your wall socket.
    2. Contact an electrician if it’s below the recommended level.

  • Avoid Extension Cords

    1. Always plug directly into the wall socket.

  • Inspect Home Wiring

    1. Hire a licensed electrician to inspect for faults or overloading.

  • Use Voltage Stabilizer

    1. Install a stabilizer if your area experiences frequent drops.

air-conditioner - Helpful Tips

  • Install a surge protector and stabilizer.
  • Avoid running AC during known low-voltage hours.
  • Don’t use multiple high-load appliances on the same circuit.
  • Schedule an annual inspection of your electrical system.
  • Make sure your AC has its own power line.

Frequently Asked Questions❓

Question: Can I use an extension cord with my AC?
Answer: It is not recommended. Long cords can drop voltage further and trigger CH25.
Question: Is CH25 dangerous?
Answer: It protects your AC, but repeated voltage drops can wear down components.
Question: Do I need a stabilizer?
Answer: Yes, if your area has frequent voltage drops or spikes.

When to Contact a Technician

If you experience any of the following issues even after completing the recommended troubleshooting steps, please contact an authorized service technician or our support team for further assistance.

  • The same error appears repeatedly after restarting or resetting the unit.
  • Multiple error codes appear simultaneously.
  • The device makes unusual noises, vibrations, or emits a burning smell.
  • The product fails to start, operate, or complete its function despite troubleshooting.
  • There are signs of electrical issues, physical damage, or leakage.
  • An unknown or unlisted error code appears on the display.

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