Why an Independent Multi-OEM Workshop is Better for Your Generator

It means the workshop services generators from any manufacturer with the same technical depth, without any exclusivity contract with any OEM. Independence is structural: the workshop's line of business does not depend on selling a specific brand, so its technical recommendations have no commercial bias. TEMISA has operated under this model since its founding, with more than 70 years and no exclusive contract with any manufacturer.

It depends. An OEM-authorized workshop has direct access to the manufacturer's spare parts catalog and to official technical documentation — that is useful. But it also has limitations: it only services that brand, its replacement recommendation is biased toward the OEM's portfolio and it has no incentive to report chronic defects of the manufacturer. An independent multi-OEM workshop like TEMISA combines equivalent technical capability (CFE LAPEM W4200-12 + ISO 9001:2015) with real commercial independence. For mixed fleets and for clients who value neutral diagnostics, the independent model is the better option.

Because the physics of synchronous machines is the same regardless of manufacturer. The applicable standards are IEEE 95-2002, IEEE 115 and IEC 60034 — these are not proprietary standards per brand. Procedures for rewinding, vacuum-pressure impregnation, dynamic balancing under ISO 1940 and electrical testing (Hipot, megger, RSO, ELCID, partial discharge under IEC 60270) are generic techniques of the discipline. What varies between OEMs are specific design parameters (tolerances, materials, winding schemes) — and that is covered with technical literature, service manuals and 70+ years of cumulative experience in the Mexican generator fleet.

No. TEMISA is the authorized sales and service representative for TD Power Systems in Mexico and Central America under a formal Service Agreement. This means we are accredited by TDPS to sell and install their equipment under official warranty — but we are NOT obligated to recommend TDPS over other brands. When a client asks our opinion on which generator to buy, we evaluate the technical case and recommend the best fit — which may be TDPS or another brand. The commercial alliance coexists with independent technical judgment.

Yes, with proper coordination. In many cases the OEM authorizes the independent workshop to perform maintenance under the manufacturer's procedures without voiding the warranty. The key is: (1) documenting the scope of work under OEM procedures when applicable, (2) using genuine spare parts or validated equivalents, (3) delivering reports with ISO 9001:2015 traceability that the OEM accepts as evidence. TEMISA has worked under this arrangement with several OEMs without affecting active warranties.

We have three routes: (1) direct OEM channel when the client prefers it or when the part is critical and only the manufacturer supplies it, (2) authorized distributors with competitive price and comparable lead time, (3) technically validated equivalent parts when applicable (bearings, coils, sensors from generic brands with equivalent specifications). We make the decision together with the client based on urgency, budget and asset criticality — with no commercial bias toward any channel.

Yes. When a fault requires the manufacturer's participation (original engineering consultation, intervention under warranty, supply of unique parts), we coordinate directly with the OEM on the client's behalf. TEMISA acts as a neutral technical interlocutor: communicates the diagnosis to the manufacturer, documents the case in the format the OEM recognizes and supervises that the intervention meets the manufacturer's service procedures. Independence does not mean isolation — it means the end client has a technical ally with no conflict of interest.