Error code H6

Error code H6 is a common issue that affects many air conditioner models and brands. This code indicates a malfunction in the indoor fan motor, which is responsible for circulating air throughout the space. When the H6 code appears, the air conditioner stops functioning, and the fan motor does not rotate. Below are the possible causes and solutions:

Common Causes of H6 Error Code

1. Lack of power to the fan motor:
   • Power cables: A loose or damaged cable can interrupt the power supply.
   • Fuses or circuit breakers: A blown fuse or defective circuit breaker could be causing the issue.
   • Fan capacitor: A faulty capacitor can prevent the motor from receiving the necessary power.
   • Blocked fan shaft: Mechanical problems, such as worn bearings, can block the fan shaft.
2. Defective fan motor:
   • If the motor is damaged, it will not rotate correctly and needs replacement.
3. Control board issues:
   • The control board, which sends signals to the fan motor, may be faulty and fail to transmit proper commands.

Solutions Based on the Cause

1. Check the electrical supply:
   • Inspect the power cables and electrical connections. Repair or replace them if they are loose or damaged.
   • Use a multimeter to check the continuity of the cables with the equipment disconnected from the power supply.
2. Inspect the fan motor:
   • Power the fan motor directly to rule out control board problems. If the motor does not work, replace the component.
3. Inspect the control board:
   • If the board does not send the correct signals to the motor, it may be defective and require replacement.

Additional Tips to Resolve H6 Code

• Restart the air conditioner: Sometimes, a reset can fix the issue.
• Clean the air filter: A dirty filter can restrict airflow and cause the fan motor to overheat.
• Inspect and clean the fan motor: Dirt buildup can prevent the motor from rotating properly.
• Check the motor voltage: Ensure the motor receives the appropriate voltage to operate.

Checks Performed by the Control Board

The control board performs several checks to ensure the fan operates correctly:

1. Current monitoring: Monitors the electrical current flowing to the motor to verify it receives normal power.
2. Speed sensors: Uses Hall effect sensors to confirm the fan rotates at the proper speed.