Six Most Common Reasons Why Your Backup Generator Isn’t Starting
A reliable backup generator is important to your home’s safety and functionality, so it can be especially problematic when yours won’t start. Older generators are particularly vulnerable to this problem. Luckily, the background-checked technicians at Generator Services, Inc. can determine what problems, big or small, are keeping your generator from turning on. We can diagnose and repair all generator brands with upfront pricing and same-day services.
Below are a few of the most common reasons why your backup generator isn’t starting and how to check them before calling for help.
1. Low Oil or Fuel
For generators that run on propane, diesel, or gas, the first step when your generator won’t start is to check its current fuel level. Depending on how old your fuel is, it may be necessary to drain and replace your generator’s supply completely. Old, stale fuel can lead to hard starts or eventual clogs.
2. Clogged Fuel Valve
It’s possible that even with sufficient fuel, your generator may be unable to move that fuel where it needs to go. A clogged hose or valve is another common reason your generator might not start. You can check to ensure the vacuum relief valve on top of the gas tank is fully open. Then, unplug the outlet hose from the intake to ensure there aren’t any clogs in the hose.
3. The Spark Plug Is Dirty
With time and use, dirt and deposits can gradually build up on your generator’s spark plug, keeping it from functioning properly and preventing your generator from turning on. The easiest way to fix this is to check the spark plug and clean or replace it as necessary.
4. Choke Control Needs to Be Adjusted
The choke control ensures that the correct mixture of fuel and air is present in your generator’s carburetor. An imbalance can throw off the engine’s ability to turn over. How you adjust the choke varies depending on what kind of generator you’re working with. Cold generators need their choke closed completely before you start and should be carefully adjusted once the engine is running. The chokes for half-warm generators should be halfway open when you begin to work.
5. Clogged Air Filters
If your choke control doesn’t need adjustment, it’s still possible that you aren’t getting the airflow you need to make your fuel mix correctly. Ensure you haven’t overlooked your air filters, which must be regularly cleaned and replaced for your generator to function.
6. Generator Battery Failure
Dead batteries are particularly common among generators if the generator has not been used for a longer period of time. Most often, sulfation buildup within the battery occurs as lead sulfates coat the internal lead plates. As the sulfation builds, it prevents electrical conversion, and inhibiting the battery from providing the current needed to start the generator. If the sulfation is severe enough, you’ll likely need a replacement battery installed.
Generator Repair & Maintenance in Columbia, SC
What happens if you’ve tried these troubleshooting tips and your generator still isn’t starting? More serious generator issues need specialized care that isn’t wise or safe to try without professional assistance. Contact Generator Services, Inc. for prompt, reliable generator service in western South Carolina. Our family-owned and -operated company has 35+ years in the business and is ready to help you regain your backup power supply.
Reach out today to get started.
