Danfoss VLT HVAC Drive FC 102
Danfoss VLT HVAC Drive FC 102 code 68: Safe Stop activated
The drive stops the motor immediately because the safe torque off function has been activated.
Safety first. This code involves a gas, flame or electrical hazard. Do not keep resetting it. Leave burner, gas train and high voltage work to a qualified technician. WERCS answers 24/7 at (877) 489-3727.
- Code
- 68
- Name
- Safe Stop activated
- Controller
- Danfoss VLT HVAC Drive FC 102
- Type
- Emergency stop
- What it does
- Fault: the equipment trips and stops
- Risk
- RED Specialist territory
- Reset
- Needs a manual reset
- 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 1 common cause 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 68 mean?
The drive stops the motor immediately because the safe torque off function has been activated.
Is Danfoss VLT HVAC Drive FC 102 code 68 dangerous?
It is graded red, specialist territory: it involves a burner, gas, flame or safety lockout, so leave the repair to a qualified technician.
How do I fix Danfoss VLT HVAC Drive FC 102 code 68?
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
62 · Output frequency at maximum limit65 · Control card overtemperature66 · Heatsink temperature low67 · Option module configuration has changed69 · Power card temperature70 · Illegal FC configuration80 · Drive initialized to default value92 · No-Flow93 · Dry pump94 · End of curve
All 73 Danfoss VLT HVAC Drive FC 102 codes · Every fault code