Common questions about generator service and maintenance
Questions & Answers
We service all major generator manufacturers including Cummins, Generac, Caterpillar, Kohler, MTU, Detroit Diesel, and more. As a Cummins Authorized Dealer with certified technicians across all major brands, we handle everything from small commercial units to large industrial generators.
Most commercial generators require service every 6 months or 200 operating hours, whichever comes first. Healthcare facilities and data centers typically require quarterly maintenance per NFPA 110 requirements. We build custom maintenance schedules based on your equipment, usage patterns, and compliance requirements.
NFPA 110 is the standard for emergency and standby power systems. It requires regular testing of generators under load to verify they can perform at rated capacity. We bring resistive and reactive load banks on-site to simulate real-world demand, testing voltage regulation, frequency stability, and thermal performance. Every test is documented for compliance records.
Yes. We offer annual, semi-annual, and quarterly maintenance programs tailored to your equipment and compliance requirements. Contract clients receive priority scheduling, discounted emergency rates, and proactive monitoring of their generator fleet.
We dispatch technicians 24/7. Response times vary by location but are typically 2-4 hours within our primary service area (Bay Area, Sacramento, Central Valley). We carry common parts on our service vehicles to resolve most issues on the first visit.
Yes. Our technicians are trained and certified on both diesel and natural gas generator systems across all major brands.
We cover Northern and Central California, including the San Francisco Bay Area, Sacramento, Central Valley, Central Coast, North Bay, and San Joaquin Valley. Our headquarters is in Concord, CA.
A standard maintenance visit includes engine oil and filter change, coolant level and condition check, battery testing and cleaning, fuel system inspection, air filter inspection or replacement, belt and hose inspection, control panel function test, transfer switch exercise test, and a full written report.
EPSS (Emergency Power Supply System) testing is required for healthcare facilities under NFPA 99 and NFPA 110. It involves monthly, annual, and triennial load tests to verify the complete emergency power system can support life safety loads. We provide full documentation for Joint Commission and CMS surveys.
Diesel fuel degrades over time through oxidation, water contamination, and microbial growth. A generator that sits idle for months can fail to start because of bad fuel. We recommend annual fuel testing and fuel polishing to ensure your generator starts reliably when called upon.
Call us directly or submit a service request and we will get back to you.