You’ve invested in a backup generator to safeguard your family, home, and peace of mind during power outages. However, the truth that often goes unspoken is this: even the best generator can let you down if it isn’t properly maintained.

At Nelson Electric & Air, we understand the consequences of neglecting your generator. Common issues like dead batteries, gummed-up fuel lines, dirty air filters, or even total failure can strike when you need your generator the most. That’s why we offer annual maintenance plans tailored for homeowners who seek true reliability, not just good intentions. If you’ve ever thought, “It’s probably fine,” this blog post is for you.

Why Generators Need Regular Maintenance

Your generator functions like a vehicle—it comprises an engine, electronics, moving parts, fluids, and filters. Just like a car, if you neglect it, it will eventually fail you. Industry standards recommend a professional inspection and maintenance at least once a year, even if your system hasn’t been used frequently. Generators that sit idle for long periods are sometimes more likely to fail due to stagnant fuel and dry engine seals.
Regular maintenance helps prevent:

• Startup failures during outages
• Reduced lifespan of parts and components
• Voided manufacturer warranties
• Expensive (and avoidable) emergency repairs

A generator you cannot depend on is simply an expensive box. Let’s ensure yours is ready when your family needs it most.

What’s Included in a Professional Generator Maintenance Visit?

At Nelson Electric & Air, we adhere to a comprehensive checklist to guarantee your system is safe, reliable, and compliant with warranty terms. Our licensed technicians perform the following:

• Full System Inspection: We examine every connection, wire, hose, and bolt, checking for signs of wear, corrosion, or loose fittings.
• Engine Oil & Filter Change: Even if the generator hasn’t been used extensively, old oil degrades and loses effectiveness. We utilize manufacturer-approved filters and appropriately dispose of used fluids.
• Air Filter Replacement: A clogged filter can choke your generator and compromise its performance.
• Spark Plug Replacement: We check for fouling, corrosion, or weak spark issues and replace plugs every time, so you never have to worry.
• Battery Testing & Cleaning: A bad battery is the primary cause of generator failure. We test voltage and load and ensure clean terminals to prevent unexpected failures.
• Software & Firmware Updates: Modern generators are computerized. We connect your unit to your smartphone to ensure its software is current, similar to updating your phone or computer.
• Load Testing: We simulate power demands to verify your system’s response under pressure.
• Fuel System Check: We inspect for leaks, damage, and blockages and ensure the appropriate flow of natural gas or propane.

More Than Just a Checklist — A Peace-of-Mind Plan

Our annual maintenance plans extend beyond a single visit; they are designed to keep your system running efficiently for the long term while protecting your investment.
Membership Benefits Include:

• Discounted pricing on maintenance and repairs
• Priority scheduling during storms and outages
• Annual reminders to help you stay on track
• No surprise billing — flat, predictable pricing
• Support from a local team that knows your system inside and out

We also maintain digital records of every service visit, ensuring you’re covered in the event of a problem and have a complete history available.

What Happens If You Skip Maintenance?

Many homeowners think, “It’s fine,” until their generator doesn’t start during a blizzard. Lack of maintenance can lead to warranty denials due to the absence of service records and potentially costly replacements of parts that could have lasted for years. Skipping maintenance isn’t saving money—it’s a risk you take with your home’s protection.

How Often Should Your Generator Be Serviced?

Your generator should be serviced at a minimum once a year. If it runs for extended periods or during multiple outages, we may recommend a second check mid-year, particularly if it operates in extreme temperatures. We can customize the maintenance plan based on your generator’s usage and location.

What Does an Annual Plan Cost?

We aim to keep our services affordable, as we believe every homeowner should be able to secure their generator and home without undue stress.
Plans vary based on generator size, model, and service frequency (one or two visits per year). Most clients find that maintaining their system costs less than what they would spend on a single emergency repair. You’ll receive a detailed quote without hidden fees, and we’ll explain everything clearly before you commit. We provide various payment options, allowing you to choose between monthly, quarterly, semi-annual, or annual plans.

Why Trust Nelson Electric & Air?

We are not just here to sell you a generator; we are committed to being there for you during snowstorms, power outages, and late-night inquiries. Here’s what distinguishes us from other electrical companies in NH:

• Local, family-run, and focused on service
• Licensed, insured, and prioritizing safety
• Transparent, pressure-free consultations

Whether you need a reliable electrician in Concord, NH, or a skilled electrician in Manchester, NH, let us provide the services you need to keep your generator running smoothly.
For peace of mind and professional service, contact Nelson Electric & Air today to schedule your generator maintenance!