Generator Maintenance Tips to Handle Your Next Power Outage
O'Fallon, St Charles & Saint Louis, Missouri

Many homeowners purchase and install generators to cover them in the event a power outage occurs. This vital piece of equipment ensures your household lights and appliances will keep on running when you need them most. However, many homeowners neglect regular generator maintenance. Maintenance is key in maximizing your generator’s lifespan, preserving the manufacturer’s warranty, and preventing unexpected failures.
Here are some top generator maintenance tips so you can prepare for any emergency situation.
Frequency of Maintenance
Even if you haven’t used your generator in a while, it should still be inspected and maintained yearly. On top of time-based maintenance, most generators require maintenance that’s based on hours of operation. For example, most need maintenance after the first 25 hours of operation, then after every 200 hours of use.
What to Check
The whole system should be checked regularly, but there are three very important things to check if you forget all else.
Gas or oil leaks
Gas and oil leaks are rare but when they do happen, they can pose a serious fire risk. Check your generator for leaks and turn it off if you see any. Focus on hoses and connection points, which are most susceptible to leaks.
Oil level
Just like your car’s engine, generator motors need oil for lubrication. If there is not enough oil, the motor will overheat and fail. Check the oil level every time you run it so it doesn’t wear out prematurely.
Enclosure for blocked ventilation louvers
The air vents in your generator’s enclosure draw in fresh air while allowing exhaust fumes and heat to get out. Regularly inspect the enclosure to ensure no dirt, plants, or snow drifts are blocking these vents.
Other Routine Generator Maintenance
You should also regularly inspect the following systems and components.
Air Filter
This filter keeps particulates out of the motor. Over time, it can clog, which makes it tougher for your generator to produce power. Replace air filters based on the manufacturer’s recommended maintenance plan.
Coolant
For generators that use a liquid cooling system, follow the manufacturer’s recommended replacement schedule.
Spark Plugs
Eventually these will need to be replaced. Inspect the spark gap after every 400 hours of operation.
Automatic Transfer Switch
This detects when your connection to the municipal electrical system is interrupted and then will activate your generator. A certified electrician in St. Louis can inspect the transfer switch for corrosion and loose wires annually.
Electrical output
Have your electrician check the power output as well as stability of your generator.
Electrical Inspections St Charles & O'fallon, MO
Electrical maintenance and inspection is critical when it comes to powering your backup generator. If you want it to work the next time you need it, you need to engage in regular maintenance by a O’Fallon and St. Charles MO electrician. Book your appointment when you contact us at 636-294-8562.
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Master Electrican Missouri.
Affordable electrical contractor serving the St Louis, MO area