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Danfoss VLT HVAC Drive FC 102

Danfoss VLT HVAC Drive FC 102 code 69: Power card temperature

The drive stops operating because the temperature sensor on the power card is reading either too hot or too cold.

Code
69
Name
Power card temperature
Controller
Danfoss VLT HVAC Drive FC 102
Type
Over temperature
What it does
Fault: the equipment trips and stops
Risk
YELLOW Booth plays by its own rules
Source
The manufacturer's manual (subscribers see which manual and page)

Updated November 4, 2026

How to fix it

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  • What to do next, in plain words
  • What the manual says to do, and the page it is on
  • The 3 common causes listed for this code
  • The step by step check for this problem, one check at a time
  • Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)

Questions about this code

What does Danfoss VLT HVAC Drive FC 102 code 69 mean?

The drive stops operating because the temperature sensor on the power card is reading either too hot or too cold.

Is Danfoss VLT HVAC Drive FC 102 code 69 dangerous?

It is graded yellow: not hard, but a booth does it differently than the gear most techs know, so follow the checks in order.

How do I fix Danfoss VLT HVAC Drive FC 102 code 69?

The manual's fix and the step by step check for this code are in WERCS Diagnose, plans from $49 a month. For help right now, WERCS answers 24/7 at (877) 489-3727.

Other Danfoss VLT HVAC Drive FC 102 codes

All 73 Danfoss VLT HVAC Drive FC 102 codes · Every fault code