Control Circuit Error

What does CPF27 mean?

A control circuit error indicating a malfunction within the drive's internal control logic or hardware. This fault often points to damaged internal components that necessitate power cycling and potential hardware replacement, affecting the drive's core functionality.

• Internal hardware malfunction on the control board due to component failure
• Transient electrical noise or severe disturbance affecting the control circuit's operation
• Degradation or failure of internal electronic components over time.

Click steps to track your progress.

1. 1

   Perform a power cycle by disconnecting and reapplying input power to the drive completely.

2. 2

   Visually inspect the control board for signs of damage or burn marks on components.

3. 3

   If the fault persists, replacement of the drive control board or the entire drive unit may be necessary.