What Information Is Needed for Pump VFD Fault Support?

For pump VFD fault support, send the fault code, VFD model, motor nameplate, power supply data, pump application, wiring photos and a short description of when the fault happens. Clear information helps engineers identify the likely cause faster.

Recommended Configuration

What Must Be Confirmed?

• Exact fault code displayed by the VFD.
• Whether the fault appears at start, acceleration, running or stop.
• Motor rated current and VFD output current rating.
• Input voltage measured at the VFD terminals.
• Pump type, load condition and valve position.
• Recent changes to wiring, parameters or site equipment.

Selection Logic

Fault support is faster when symptoms are connected to operating timing. A trip during acceleration suggests different causes from a trip after one hour of running. A trip only at high demand may point to overload, pressure, supply or pump issues.

Photos are useful because many problems are wiring or nameplate related. A clear motor nameplate prevents wrong current selection. A wiring photo helps check power, motor, sensor and terminal-control connections.

Parameter history also matters. If settings were changed before the fault appeared, note which parameters were adjusted. Do not repeatedly reset a serious fault without checking the cause.

Common Mistakes

• Sending only “VFD does not work” without a fault code.
• Hiding that wiring or parameters were recently changed.
• Not sending the motor nameplate.
• Measuring voltage only at the panel input and not at the VFD terminals.
• Sending blurry photos that do not show terminal labels.
• Replacing parts before checking application data.

AUSENIST Solution

AUSENIST can help analyze pump VFD fault information and suggest next checks. Support accuracy depends on confirmed site data, photos and safe measurements from qualified personnel.

FAQ

What is the most important fault information?

The exact fault code and when it occurs are the first pieces of information needed.

Why do engineers ask for the motor nameplate?

The nameplate confirms voltage, current and frequency, which are essential for VFD selection and protection settings.

Should I send wiring photos?

Yes. Clear photos of input, output, sensor and control terminals can reveal common installation problems.

What voltage should be measured?

Measure voltage at the VFD input terminals, especially during startup or when the fault occurs.

Should I reset the fault repeatedly?

No. Repeated resets can damage the motor, pump or drive if the root cause is serious.

What if the fault happens randomly?

Record time, load condition, pressure, current, temperature and other equipment running at the same time.

What should be included in a support message?

Include fault code, model, motor nameplate, supply voltage, pump type, cable length, control mode, photos and recent changes.

Related AUSENIST Pages

Send us the fault code, VFD label, motor nameplate, wiring photos and fault timing. AUSENIST can help review the next troubleshooting steps.