Neglect rarely announces itself loudly. It shows up as small signs — a missed exercise here, a fault light there — until the night the generator is needed and it doesn't start. If any of these sound familiar, your unit is telling you something.
Get Free Generator Maintenance Plans QuotesThis is the most honest sign there is. Standby generators typically need professional maintenance about once a year, or sooner after extended run time. If the last service was more than a year ago — or you genuinely can't recall one — the oil, filters, plugs, and battery are all past due, whether or not anything looks wrong yet.
A stopped exercise cycle is the unit's way of flagging a problem: a fault, a weak battery, or a controller issue. A unit that exercises inconsistently, or that you never actually hear run, should be checked — the exercise is the system's self-test, and a self-test that isn't happening isn't testing anything.
A red fault light or a latched error code that keeps returning after being cleared is not a quirk to live with. Write down the code and get it diagnosed; the underlying cause is usually straightforward when caught early and more expensive when left to compound.
Corroded battery terminals, a unit choked with leaves and debris, weathered housing, or oil that hasn't been changed since you can't remember when — all of it adds up. Outdoor units live in New Jersey weather year-round; they need the same basic care as any small engine, and a maintenance visit covers all of it in one pass.
A multi-day run is the hardest thing you can ask of a standby unit, and manufacturers specify post-run service for a reason. If your generator carried you through a long outage and then went straight back to sitting idle, that post-run visit is still owed — and it's the visit most likely to catch the wear that run caused.
It can. Major manufacturers condition warranty coverage on documented routine maintenance, and a plan gives you dated service records — useful for warranty claims, and good documentation to hand a buyer if you sell the home.
The core visit covers oil and filter changes, spark plugs, a battery load test and terminal cleaning, air filter, coolant and belt inspection, exercise-cycle and transfer-switch verification, and a run test under load with a written health report. It's the visit that turns 'probably fine' into 'checked.'
Starting today isn't the test — starting on the worst night of the year, after months idle, is. A unit that starts now can still have a weak battery, old oil, or a fault waiting for load. Maintenance is what makes 'starts now' into 'starts when it matters.'
Generator Maintenance Plans in New Jersey
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