Winter’s over. The tents are calling, the BBQ’s ready, and then you remember: your Gentrax generator has been sitting in its storage shed for months. Will it even start?
After months in a generator storage shed or box, even the best portable generators can have problems. These issues can keep them from running at their best. And there’s nothing worse than stale fuel, dead batteries, or a generator that just won’t cooperate.
If you want peace of mind, you will be pleased to know that some post-winter generator maintenance can help. This can save you from a ruined camping trip or a blackout at home. Here’s how to get your 3.5kVA or 4kVA inverter generator running like new.
Safety First: Pre-checks Before Use
Before you start tinkering, keep things safe. Unplug it from any power source, wheel it out of the generator storage box, and set it somewhere with good airflow. You don’t want fumes building up while you work.
Do a quick once-over to check for any cracks, leaks, or signs of pests. Mice love small spaces, and a chewed wire can turn your portable generator into a costly repair. Spotting issues now means fewer surprises later.
Inspect Fuel and Oil Systems
Old fuel is the most common post-storage problem. If you left petrol inside all winter, drain it and refill with fresh fuel to avoid clogging your carburettor. Check your fuel lines too, as cracks or blockages can stop camping generators from running altogether.
Low or dirty engine oil can also damage your Gentrax inverter generator over time. Properly top up or replace your unit’s fuel as needed so it can deliver the power you need.
Clean the Air Filter and Spark Plug
Your inverter generator needs clean air and a strong spark to perform at its best. Pull out the air filter, clean it, or replace it if it’s beyond saving.
Next, check the spark plug. Corrosion or wear here makes starting harder and reduces efficiency. Clean it or swap it for a new one, then reassemble carefully. A quick refresh keeps it running smoothly.
Battery and Electrical System Check (If Applicable)
If your model has an electric start, the battery deserves attention. After a long storage, it might be flat or done for. Recharge it fully or replace it if it won’t hold power.
While you’re at it, test the AC outlets and indicator lights. A failing electrical system means your backup power generator could let you down when you need it most.
Give It a Test Run
Don’t skip this part. It’s one of the most important parts of regular generator maintenance. Doing so helps you make sure everything’s working properly.
Test runs are simple for most portable generators. First, start your unit and let it run for 10 to 15 minutes. Plug in a small appliance, like a lamp or fan, to test the load. Listen for any strange noises or vibrations.
Better to spot issues at this stage than to find out during a blackout. That way, you can still find a way to fix it.
Stay Ready Year-Round
A well-maintained Gentrax generator isn’t just for convenience, but also for your peace of mind. Regular care is important to ensure consistent, reliable performance. This applies whether you use a 3.5kVA inverter generator for camping or a larger generator during an outage.
The answer is simple: treat your inverter generator right. Use fresh fuel or add a stabiliser before the next cold season, store it in a ventilated area, and run routine checks to keep it in top shape. Do that, and your Gentrax unit will always be ready for anything.
Frequently Asked Questions
How do I safely restart my Gentrax generator after months in storage?
Move it to a well-ventilated area, check for leaks or damage, and make sure the fuel and oil are fresh. Clean the air filter and spark plug if needed. Then run it for 10 to 15 minutes to ensure it’s working properly.
Should I drain the fuel from my Gentrax inverter generator before or after winter storage?
It’s best to drain it before storage to prevent clogs and stale fuel. Alternatively, you can add a fuel stabiliser and run the generator briefly to circulate it through the system.
What type of oil should I use when maintaining my Gentrax 3.5kVA generator?
Use high-quality SAE 10W30 engine oil, as recommended for most Gentrax generators. Always check your user manual to confirm the right type for your model.
How often should I replace the air filter and spark plug on my portable generator?
Check both parts before and after long storage. Replace the air filter every 100 hours of use and the spark plug every 300 hours, or sooner if they’re dirty or damaged.
Is it necessary to use a fuel stabiliser when storing my generator long-term?
Yes, if you plan to leave fuel inside during storage. It keeps the fuel from breaking down, making it easier to restart your portable inverter generator.
Can I store my Gentrax generator in a standard garden shed or do I need a special generator box?
A standard garden shed works if it’s dry, ventilated, and away from flammable materials. However, a dedicated generator storage box offers better protection against dust, pests, and weather damage.
