whirlpool | air-conditioner Error Codes: Troubleshooting, Fixes & Prevention Tips explained below.
What Does CH04 Error Mean?❓
The CH04 error code means the indoor pipe temperature sensor is malfunctioning or sending incorrect temperature readings. This sensor monitors the temperature of the coil pipe inside the indoor unit. If it stops working, the AC may shut down to avoid damage or operate in an inefficient way.
air-conditioner - What Causes the CH04 Error?
- Sensor wire disconnected or damaged
- Sensor covered with moisture or dust
- Sensor short-circuited
- Sensor aging or worn out
- PCB not detecting sensor readings
air-conditioner - Fixing CH04 Error Step-by-Step❓
Turn Off the Power
- Switch off the AC and unplug from power source
- Wait 5 minutes before proceeding
Open Indoor Unit Cover
- Locate the coil pipe and attached sensor
- Look for any loose or disconnected wire
Clean the Sensor
- Wipe the sensor using a dry cloth
- Ensure it is not wet or dusty
Check PCB Connections
- Ensure sensor wire is properly inserted into control board
- Look for burnt or damaged parts
Replace the Sensor if Needed
- If the sensor appears damaged, it may require replacement by a technician
air-conditioner - Helpful Tips to Avoid CH04 Error
- Schedule routine service every 6 months
- Avoid operating the AC with wet filters
- Don’t spray liquids near sensors
- Keep power voltage stable to avoid electric faults
- Use surge protectors for expensive units
Common Questions About CH04 Error❓
- Question: Can I ignore the CH04 error?
- Answer: No, ignoring it may lead to cooling issues or AC shutdown.
- Question: Can I fix the CH04 sensor fault myself?
- Answer: You can check wiring and clean the sensor, but replacement should be done by a technician.
- Question: What is the cost of replacing the indoor pipe sensor?
- Answer: Typically between ₹400–₹800, depending on the AC model.
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