Generator Maintenance: What a Houston Homeowner Should Know
A standby generator sits idle most of the year and then has to work flawlessly in a storm. Here is what annual service covers and what you can watch for yourself.
A generator you cannot trust is not much of a backup
A standby generator spends most of its life doing nothing. Then a storm knocks out power, and it has to start and run for hours or days. Machines that sit idle can develop problems, and the way to catch them is regular service, not hoping for the best.
The intervals and details depend on your make and model, so your owner's manual is the final word. What follows is a plain description of the kinds of work involved, so you know what to expect and what to ask for.
What annual service usually includes
The specifics vary by manufacturer, but a service visit generally covers a few common areas.
Oil and filter. Like a car engine, a generator engine needs clean oil, and the oil filter is typically changed along with it. Oil gets old even when the engine does not run much.
Air filter. The engine breathes through it, and a dirty one hurts performance. Houston's pollen season and dust make this worth checking.
Spark plugs. These wear over time, and worn plugs can cause hard starting or rough running.
Battery. The starting battery is a common reason a generator does not start. A technician tests it and replaces it when needed. Heat shortens battery life, which is one more reason to check it regularly.
General inspection. Belts, hoses, fuel connections, the enclosure, wiring and any signs of corrosion, leaks or pests get a look. Fire ants and other critters like to move into equipment around here.
Your owner's manual lists the service schedule for your model. Follow it, and keep a record of every visit.
The exercise cycle and the transfer switch
Most standby generators run themselves briefly on a set schedule, often once a week, to keep the engine in shape and to catch problems early. You will hear it start, run for a short time and shut off. That cycle is normal, and it is a good thing. If you stop hearing it, or the generator does not complete the cycle, take note.
The transfer switch also deserves attention. It is the device that moves your home between utility power and generator power. A technician checks that it operates properly, because a generator that runs but does not transfer is no help during an outage. This is electrical work and should be done by a professional, not by the homeowner.
Why Texas heat and humidity matter
Houston is hard on outdoor equipment. Long, hot summers stress batteries, cooling and electronics. High humidity encourages corrosion on terminals, connections and metal parts. Heavy rain and storm debris can clog vents and cover the unit with leaves and mud. And in this region, plants and insects will happily take over any gap they find.
Simple habits help. Keep the area around the generator clear, as the manual describes. Trim back shrubs and trees. Keep mulch and irrigation spray away from the enclosure. Look at the unit after a storm. And do not stack things against it or store items inside the clearance area.
Error codes and warning signs
Many generators have a display or indicator lights that show a warning or fault. If you see one, write down what it says and look it up in the owner's manual. Do not ignore it, and do not keep resetting the unit without finding out why. Some warnings, such as low battery or a maintenance reminder, are simple. Others can mean the unit will not start when you need it.
Call us if the generator fails its exercise cycle, if you notice leaks, unusual noise or smoke, or if there is a fault code you cannot resolve. If you smell gas, leave the area and call your gas provider or emergency services right away.
Keep a simple log. Write down the date of each service visit, any fault messages you notice, and anything unusual such as a rough start or a new noise. A short history helps a technician spot patterns, and it is useful if you ever need to show the unit has been cared for.
It also pays to think about timing. Service done before hurricane season gives you time to fix anything found, instead of discovering a problem when a storm is already on the way. After a long outage, have the unit looked at too, since it has just done the hardest work of its life.
A few habits between visits keep small problems small. Make sure the enclosure is closed and latched, make sure nothing is leaning on it, and watch for standing water or washed-out soil around the pad. If your generator has a smartphone or online monitoring feature, check whether it can alert you to faults, and ask your technician how to set it up for your model.
Call Wired Electrical & Generators at (713) 467-1125 for a free estimate. We are a family-owned, licensed and insured electrical company in Tomball, TX, serving the Houston area. We can set up regular service so your generator is ready before the next storm.
Quick answers.
How often should my generator be serviced?
Follow the schedule in your owner's manual for your model. Many homeowners schedule a visit once a year, ideally before hurricane season.
Is the weekly exercise cycle normal?
Yes. Most standby generators run briefly on a schedule to stay in shape. If it stops happening or does not finish, have it looked at.
Can I do the maintenance myself?
Some basic visual checks are fine, such as keeping the area clear and watching the display. Service work on the engine, battery and transfer switch is best left to a trained technician, and the owner's manual explains what is safe for you to handle.
What should I do if the display shows an error?
Note the message, check your owner's manual and call us if you cannot clear it or it comes back. Do not keep resetting it.
Does the generator need service if it rarely runs?
Yes. Time and weather affect it even when it sits idle, so scheduled service still applies.
Questions about any of this?
Call any time. Estimates are free.