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What belongs on an annual generator service checklist?

Oil, filters, battery, exercise cycle, and transfer test — annual service is what makes ice-day performance real.

Electrical5 min readUpdated

Answer first

Oil, filters, battery, exercise cycle, and transfer test — annual service is what makes ice-day performance real.

01

Definition

What is this?

Annual service keeps a standby generator ready to start and carry load when utility power fails.

02

When to use

When does this apply?

Schedule before ice season, after long runtime events, and per manufacturer intervals.

03

Failure modes

What goes wrong?

Never running an exercise cycle. Ignoring rodent nests. Skipping ATS verification.

04

Proof

Why trust this guidance?

Hurst services generators we install and many we did not — fall readiness visits across the Danville service area verify start, transfer, and fluids before ice season, because readiness is the product.

05

Action

What should you do next?

Book fall generator service before the first ice forecast.

Glossary

Key terms for this guide — full definitions live in the Hurst plumbing & electrical glossary.

Questions homeowners ask

FAQ

How often to exercise?

Follow the manufacturer — typically weekly short runs.

Who replaces oil?

Part of professional service; DIY only if you are equipped and the warranty allows.

Does warranty require service?

Often yes — keep records.

Author & reviewer

Hurst Electric & Plumbing

Reviewed by Hurst Electric & Plumbing

Company-level review by the licensed Hurst plumbing and electrical team in Danville, KY — a dual-trade shop. Guidance reflects how we diagnose on-site, explain scope in writing, and close out under the Hurst standard. Last updated .

Hurst Electric & Plumbing

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