Service by brand
GE UPS service: SG Series, SitePro, LP33 and TLE
We maintain and repair GE three-phase UPS systems: the TLE Series and the discontinued SG Series, SitePro, LP33 and LP33 Series II units still in service. ABB now lists the SG Series on its own three-phase UPS pages. We are a Canadian UPS service and supply provider since 2012, not GE or ABB. Same-day service in Montreal, Quebec City, Toronto and Ottawa; 24 to 48 hours elsewhere in Canada.
Key facts
- SG Series maintenance bypass: built in
- SG Series parallel units: up to six
- SG Series parallel architecture: RPA, redundant parallel architecture
What we service
Three-phase families we work on, each with its model page:
Discontinued families we still maintain:
Preventive maintenance
ABB's SG Series page lists a built-in maintenance bypass and units that can be paralleled, up to six, through its redundant parallel architecture (RPA), so the visit plan follows the bypass and the redundancy the site has. A yearly visit is the baseline: batteries measured block by block, fans and air filters, connection torque and a thermal scan under load, the event log and settings, and a written report with every reading next to the previous visit.
Repair
On an RPA parallel system we also check that each unit shares the load and that the system returns to normal after the repair. We diagnose from the alarm history and the measurements, quote the part and the labour before fitting anything, and test the unit back to normal operation.
Batteries
On these older systems, the block-by-block readings decide whether the string, the cabinet connections or both need work. We replace battery strings and cabinets, measure each block before and after, and size replacement strings to the runtime you need. A string is replaced as a set: one new block in an aged string ages to match the others.
On-site string work on older GE frames follows our battery replacement process, and the block that fits an SG Series or SitePro cabinet can be identified with the battery cross-reference tool.
Legacy and discontinued models
SG Series, SitePro and LP33 systems are no longer sold. We keep them in service while parts and batteries can be sourced. When a replacement makes more sense, we size a current system for the measured load and plan the cutover.
Planning the replacement: replacing a discontinued three-phase UPS.
When the manufacturer should do the work
A unit still under the manufacturer's warranty, or a new system awaiting its first start-up, goes through the manufacturer first. Maintenance, repairs and batteries after that can be done by us.
Coverage and quotes
Same-day service in Montreal, Quebec City, Toronto and Ottawa; 24 to 48 hours elsewhere in Canada. We reply and quote within 4 business hours. Tell us the brand, the model and the symptom or the visit you need, and the quote comes back with the scope and the date.
We also service APC / Schneider, Eaton and Vertiv / Liebert three-phase systems.
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Common questions
Do you service GE SG Series and SitePro UPS systems?
Yes, along with the LP33, LP33 Series II and TLE Series, battery cabinets included.
Can an SG Series system be maintained without a shutdown?
ABB lists a built-in maintenance bypass on the SG Series, and parallel systems with a redundant unit can be serviced one unit at a time.
Do you also service ABB systems?
Yes: <a href="/abb/service/">ABB UPS service</a>.
How fast can a technician come?
Same-day service in Montreal, Quebec City, Toronto and Ottawa; 24 to 48 hours elsewhere in Canada. We reply and quote within 4 business hours.
Sources, checked October 4, 2026:
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Brand names are trademarks of their owners and are used only to identify the equipment we service. We are not the manufacturer and are not affiliated with it.