What Support Should a VFD Manufacturer Provide to Distributors?

A VFD manufacturer should give distributors practical support across selection, commissioning and fault diagnosis—not only a catalogue and price list. The useful package includes clear rating boundaries, controlled manuals and parameters, application guidance, diagnostic evidence requirements and an agreed escalation route.

What Information Is Required?

• Main pump motor powers, rated currents, voltages and motor types.

• Local power supplies and common pump applications.

• Typical customer questions and the distributor team's technical level.

• Required pressure sensors, terminals, communications and pump logic.

• Preferred document languages and training format.

• Stock, spare-unit, warranty and return-handling expectations.

• Estimated quantities and the markets where the products will be sold.

Selection Example

A distributor plans to stock VFDs for 2.2–11 kW booster and irrigation pumps. Before ordering, it should request a current-based selection map for the confirmed supply variants, model-specific manuals, an approved parameter baseline for each common application and a checklist for collecting fault evidence.

When an installer reports a trip, the first support response can then request the fault code, motor nameplate, input voltage, output current, operating frequency, pressure reading and wiring photographs. This is more useful than replacing a unit without establishing the cause.

Common Mistakes

• Assuming one general manual is sufficient for every model revision.

• Training sales staff on kW selection without motor-current limits.

• Sharing parameter lists with no model or revision number.

• Accepting returns without collecting operating and wiring evidence.

• Leaving first-line support, warranty scope and escalation ownership undefined.

AUSENIST Solution

AUSENIST can help distributors prepare a YS620/YS820 selection basis, controlled parameter references, application guidance and a fault-information checklist for confirmed pump uses. Sample validation can identify which questions the local team can handle and which cases should be escalated for engineering review.

Support cannot compensate for missing motor data, unsafe installation, use outside confirmed ratings or undocumented product substitutions. Local electrical work must be completed by qualified personnel under the applicable manual and regulations.

Tell us your main pump power range and local voltage. We can recommend a starter stock list and distributor pricing.