ABB ACS355 VFD
ABB ACS355 VFD code 0034: 0034 MOTOR PHASE
The drive stopped because it detected a missing motor power phase or a faulty thermistor relay.
- Code
- 0034
- Name
- 0034 MOTOR PHASE
- Controller
- ABB ACS355 VFD
- Type
- General fault
- What it does
- Fault: the equipment trips and stops
- Risk
- YELLOW Booth plays by its own rules
- Reset
- Needs a manual reset
- Source
- The manufacturer's manual (subscribers see which manual and page)
Updated July 22, 2026
How to fix it
Subscribers get:
- What to do next, in plain words
- Which manufacturer manual it comes from, linked
- The 4 common causes listed for this code
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does ABB ACS355 VFD code 0034 mean?
The drive stopped because it detected a missing motor power phase or a faulty thermistor relay.
Is ABB ACS355 VFD code 0034 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 ABB ACS355 VFD code 0034?
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.