5 flashes, 1 beep - Over Capacity

What does 51 mean?

This fault code indicates that the system is operating under an overload condition, often referred to as 'Over Load Combination'. This means the unit is trying to do more than its designed capacity.

• Over Load Combination
• System operating beyond capacity

Click steps to track your progress.

1. 1

   Turn off the unit and ensure all air vents are clear and unobstructed.

2. 2

   Verify that the unit is appropriately sized for the space it is cooling or heating.

3. 3

   Reset the system by turning off the power for 1 minute.

4. 4

   If the unit frequently shows this error, it may be undersized or experiencing an internal issue requiring professional assessment.