Error 91 — Inverter VDC-OUT Over Voltage Event

What does 91 mean?

The inverter drive has measured high DC voltage spikes. The system will attempt to ride through these spikes and self-recover.

• High DC Voltage spikes in DC voltage measured by the Inverter drive

Click steps to track your progress.

1. 1

   Allow the system 15 minutes to attempt self-recovery. It will try to ride through voltage spikes.

2. 2

   If persistent, this condition could lead to a lockout (refer to Error 97 'High Voltage Lockout').

3. 3

   If the error continues, contact a qualified technician to diagnose the source of the voltage spikes.