When the power goes out and your generator doesn’t start, it’s not just frustrating—it can be dangerous or even costly, especially during a storm or workday disruption. Whether you’re a homeowner relying on a residential standby generator or a business owner with critical systems to protect, downtime isn’t an option.
At Synergy Standby Solutions, we specialize in keeping San Antonio powered day or night. If your generator is giving you trouble, here are the most common reasons why and what you can do to get back up and running quickly.
1. Dead or Weak Battery
One of the most frequent culprits behind a non-starting generator is a dead or depleted battery. Like any piece of equipment, your generator’s battery can lose its charge over time—mainly if the unit hasn’t run recently or isn’t maintained regularly.
Quick Fix:
- Check battery terminals for corrosion
- Ensure the battery is securely connected
- Use a multimeter to test voltage (typically 12.6V for a charged battery)
Prevent It:
Schedule routine battery testing and replacement as part of regular generator maintenance.
2. Fuel Issues: Low, Old, or Contaminated
Without clean fuel, your generator can’t operate efficiently—or at all. Diesel and gasoline degrade over time, while moisture or debris in the tank can cause clogs or combustion issues.
Signs of Fuel Problems:
- The engine turns over but doesn’t start
- Strong fuel odor or visible leaks
- Sluggish or sputtering startup
Quick Fix:
- Refill the tank with fresh fuel
- Inspect fuel lines and filters for blockages
- Consider fuel polishing services to clean and restore stored diesel
3. Tripped Circuit Breaker or Safety Switch
If your generator powers up but you still aren’t getting electricity, the issue might be electrical rather than mechanical. A tripped breaker or engaged safety switch can interrupt your power flow.
Quick Fix:
- Check your generator’s circuit breaker and reset it if necessary
- Inspect your automatic transfer switch (ATS) for any faults
- Look for error codes on the control panel
When to Call a Pro:
Electrical issues often require a licensed technician to avoid safety hazards. Contact us for diagnostics and repair.
4. Air Filter or Intake Blockage
Just like a car engine, your generator requires proper airflow to operate. A clogged air filter or obstructed intake can choke the system, causing failure to start or rough running conditions.
Quick Fix:
- Remove and inspect the air filter
- Clean or replace it if it is dirty
- Check that no debris is blocking the air intake vent
Tip:
Include air filter inspections in your regular preventative maintenance plan.
5. Faulty Starter Motor or Ignition System
If your generator makes a clicking noise but doesn’t start, or if there’s no response at all, the issue could lie in the starter motor or ignition system. These components wear out over time and can fail without warning.
Quick Fix:
- Inspect wiring and connectors for damage
- Check for error lights or codes on your generator display
- Attempt a manual start (if applicable)
Next Step:
Let our experienced technicians perform a complete system diagnostic to identify and fix the issue. Request a repair service now.
Bonus Tip: Check for Overlooked Simple Issues
Before assuming the worst, double-check these:
- Is the emergency stop switch engaged?
- Is the generator properly grounded?
- Has the weekly exercise cycle failed recently?
These minor oversights can sometimes be the cause of primary headaches.
Don’t Let Generator Problems Catch You Off Guard
Backup power should never be a gamble. If your generator won’t start and these quick fixes don’t work, it’s time to call the experts at Synergy Standby Solutions. We offer 24/7 emergency support, advanced diagnostics, and professional repairs for Generac, Kohler, and other leading brands.
📞 Need fast help? Contact us today or call 210-789-5368 to restore your peace of mind.
