Your standby generator keeps your home powered during an outage. But will it start when you need it most?

Generac generator installation in Golden, CO

Like a car, a generator needs regular care to work properly. Without it, you could face a dead battery, engine problems, or a costly repair.

So, how often should you service a standby generator?

Most home generators need professional service once a year or after a set number of running hours. The exact timing depends on the brand, model, and how often you use it.

Here’s what Colorado homeowners should know about standby generator maintenance.

Standby Generator Maintenance Schedule

Following a regular standby generator maintenance schedule helps prevent problems and keeps your backup generator ready for the next power outage.

These are general guidelines below. Always check your owner’s manual for the correct service intervals.

Maintenance Task How Often?
Check warning lights Weekly
Check the exercise cycle Weekly
Remove leaves, snow, and debris Monthly
Look for leaks or damage Monthly
Check battery condition Every 6 months
Inspect air filters Every 6–12 months
Change oil and filters Annually or as required
Test the transfer switch Annually
Schedule professional generator service Annually or as required

*Maintenance schedules vary by generator brand, model, and operating hours. Always follow the manufacturer’s recommended service intervals. Electrical and transfer switch testing should be performed by a qualified professional.

Some generators also need service after 200 hours of use, while others have different limits. If your generator runs for several days during a storm, you may need maintenance sooner.

Generac vs. Kohler Maintenance: What’s Different?

Generac and Kohler are two popular brands of home standby generators. Both need routine maintenance, but their service schedules can vary.

Generac Generator Maintenance

Many Generac generators use a built-in system that tracks running hours and reminds you when service is due.

Common maintenance tasks include:

  • Changing engine oil and filters
  • Checking spark plugs
  • Testing the battery
  • Inspecting the fuel supply
  • Checking for warning codes

Some Generac models also require an early oil change after the engine’s break-in period.

Kohler Generator Maintenance

Kohler generators have similar needs. Regular service may include oil changes, battery testing, air filter checks, and engine inspections.

The main difference in Generac vs. Kohler maintenance is the schedule for each model.

Both brands can provide reliable backup power with proper care.

What Does Professional Generator Service Include?

A professional inspection helps catch potential issues before they turn into expensive repairs.

During a typical service visit, a technician may:

  • Change the engine oil and filter
  • Inspect or replace air filters
  • Test the starting battery
  • Check spark plugs
  • Inspect the natural gas or propane connection
  • Check electrical connections
  • Test the automatic transfer switch
  • Check voltage and power output
  • Run the generator to confirm it works properly

These checks help keep your generator running smoothly and reduce the chance of failure.

Signs Your Generator Needs Service

Don’t wait for your yearly appointment if something seems wrong.

Common signs your generator needs service include:

  • The generator won’t start.
  • You see warning lights or error codes.
  • The engine makes strange noises.
  • The generator starts but shuts off.
  • You notice oil leaks.
  • The weekly test cycle fails.
  • Your generator hasn’t been serviced in over a year.

If you notice these problems, schedule a generator repair or inspection.

Catching problems early can save money and prevent a breakdown during an outage.

Why Generator Maintenance Matters in Colorado

Colorado weather can be tough on home generators.

Freezing temperatures can weaken batteries and make engines harder to start. Snow and ice can also block airflow around the unit.

Generac generator install in Denver, CO

Strong winds may blow leaves, dirt, and debris into the generator enclosure.

Higher elevations can also reduce the power output of some generators.

If you have a generator installed at your Colorado home, regular preventative maintenance is one of the best ways to protect it.

Before winter, make sure your generator is clear of debris, free of warning lights, and up to date on service.

Can You Service a Standby Generator Yourself?

Some basic tasks are safe for homeowners.

You can:

  • Check for warning lights.
  • Clear debris around the unit.
  • Look for visible leaks.
  • Listen during the weekly test cycle.
  • Keep track of service dates.

However, electrical work, fuel system repairs, and transfer switch testing should be left to trained professionals.

A home standby generator can start without warning and contains parts that carry dangerous voltage.

Professional service helps keep your system safe and ready to use.

Frequently Asked Questions

Does a standby generator need yearly maintenance?

Yes. Most manufacturers recommend yearly maintenance or service after a set number of operating hours. Check your owner’s manual for the correct schedule.

How long can a generator run without service?

It depends on the model. Some generators require maintenance after 200 hours of operation, while others have longer or shorter service intervals.

How often should I replace my generator battery?

Many generator batteries last three to five years. Cold weather and charging problems can shorten battery life.

What happens if I skip generator maintenance?

Skipping maintenance can lead to starting problems, engine damage, and costly repairs. It may also affect your warranty if required service is missed.

Schedule Generator Maintenance with Generator CO

Your generator is there to protect your home when the power goes out. Regular care helps make sure it does its job.

At Generator CO, we help Colorado homeowners keep their backup power systems in good working condition.

Whether you need yearly maintenance, an inspection, or generator repair, our team is here to help.

Contact Generator CO today to schedule your standby generator maintenance and enjoy peace of mind before the next power outage.

October 20, 2026

Leave A Comment