35

Option fault

Danfoss · VLT HVAC Drive FC 102

What does 35 mean?

An alarm specific to an option card has been received, likely due to a power-up issue or a communication fault with the installed option card. This indicates the option card is not functioning correctly, compromising any features or connectivity it provides. This may require further diagnosis depending on the specific option.

Additional Steps

Steps 1–2 are listed in Priority Fix.

  1. 3

    Inspect for any loose or missing wiring connections to the option card.

  2. 4

    Refer to the specific option card manual for further troubleshooting if generic steps do not resolve the issue.

Source: Danfoss VLT HVAC Drive FC 102
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