F42 -11 — Open in current sensor circuit or low current consumption

What does F42 -11 mean?

There is an open circuit in the current sensor, or the unit is consuming abnormally low current. This could indicate a faulty sensor or an issue with the power module.

• The current sensor circuit has an open connection.
• The electronic filter board (noise filter) is faulty.
• Abnormally low current consumption by the unit.
• Faulty ASN2 connector.

Click steps to track your progress.

1. 1

   Check the current sensor connections.

2. 2

   Inspect the electronic filter board for damage.

3. 3

   Verify the unit's power consumption.

4. 4

   Turn off the unit, unplug it, wait 30 seconds, and plug it back in to reset.