If you have a mini split with an H6 error code, the unit is having a problem with the indoor fan motor.
The main computer board of the indoor unit is not receiving information about the rotation speed of the indoor fan motor.
There can be a difference in errors depending on a manufacturer and model, so always verify your mini split error code with the manual for the unit.
This includes Cooper and Hunter, Daikin, units and more but be sure to check the error codes for your specific unit.
Possible Causes of a Mini Split H6 Error Code
- Bad Indoor Fan Motor
- Bad Computer Board
- Power or Wiring
- Position Sensor
Things to Check Mini Split H6 Error
- Turn off the power to the unit when checking the fan blades.
- Check the fan blade for anything blocking it from turning.
- Turn the power off to the unit and check if the fan blade rotates or is stuck.
- Check the voltage at the AC line.
- Check the computer board voltages.
Summary
A mini split H6 error code usually points to a problem with the indoor fan motor.
First, check that there is nothing blocking it from turning, and it spins freely.
The next step is to check that the voltages going to the unit’s motor are correct.
If nothing is blocking the motor and it is spinning freely along with good power voltages, the motor is usually replaced.
After replacing the motor, if the problem is not fixed, the computer board is usually replaced.
These are the basic steps to fix an H6 error code on mini split unit, but keep in mind there can always be variations with a problem.
Most errors, such as an H6, are straightforward fixes but keep in mind that one unrelated issue can sometimes cause another issue.
Have you had an H6 error code on a mini split unit? Let us know your thoughts below.