Siemens SINAMICS V20 VFD
Siemens SINAMICS V20 VFD code A930: Cavitation protection warn
Conditions exist for possible pump cavitation damage, which triggers a warning while the booth equipment continues to operate.
- Code
- A930
- Name
- Cavitation protection warn
- Controller
- Siemens SINAMICS V20 VFD
- Type
- General fault
- What it does
- Warning: the equipment keeps running and flags a problem
- Risk
- GREEN In your wheelhouse
- Reset
- Clears on its own when the condition goes away
- Source
- The manufacturer's manual (subscribers see which manual and page)
Updated November 4, 2026
How to fix it
Subscribers get:
- 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
- Booking a live video call with Ben, a master booth technician ($250/hr, paid per call)
Questions about this code
What does Siemens SINAMICS V20 VFD code A930 mean?
Conditions exist for possible pump cavitation damage, which triggers a warning while the booth equipment continues to operate.
Is Siemens SINAMICS V20 VFD code A930 dangerous?
It is graded green: in a working tech's wheelhouse with standard tools and low risk.
How do I fix Siemens SINAMICS V20 VFD code A930?
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 Siemens SINAMICS V20 VFD codes
A912 · Vdc_min controller activeA921 · Analog output parameters not set properlA922 · No load applied to converterA923 · Both JOG left and JOG right are requesteA936 · PID autotuning activeA952 · Load monitoring warningF100 · Watchdog resetF101 · Stack overflowF200 · Script errorF221 · PID feedback below minimum value