Generac Generator 1913 Error Code Explained: Meaning, Causes & Fixes

Understanding and Fixing the 1913 Error on a Generac Generator

The 1913 error on a Generac generator usually indicates an "Undervoltage" or "Low Voltage" situation. This means the generator has detected that the voltage it’s producing has dropped below the safe operating range, which can cause your home or business in St Louis or Nashville to lose backup power reliability. Restoring your generator to proper working condition involves several steps, and it’s important to proceed carefully to avoid causing damage or voiding your warranty.

What Does the 1913 Error Mean?

When you see a 1913 code, your Generac generator is alerting you that it's not outputting enough voltage—typically, less than the standard 120/240 volts required for your electrical appliances and systems. This could happen due to several causes, such as mechanical issues inside the generator, electrical component failures, or even improper maintenance.

How to Fix the 1913 Error on Your Generac Generator

• Check for Simple Causes First: Before opening or servicing anything, make sure your generator isn’t overloaded. Disconnect any extra-large loads or appliances you may have recently added during its use, both in St Louis and Nashville, this is a common starting point.
• Reset the Generator Control Panel: Many Generac generators allow you to clear error codes by simply pressing “Off,” waiting for the generator to stop completely, and then pressing “Auto.” This reset may temporarily clear the code, but if the underlying problem remains, the 1913 may return, signaling further attention is needed.
• Inspect the Battery: A low or weak battery can cause voltage issues. Make sure the battery terminals are clean, corrosion-free, and tightly connected. Use a basic voltmeter to check that your battery displays at least 12.6 volts with the generator off. Replace the battery if it is below this reading or not holding a charge.
• Look for Loose or Damaged Wiring: Sometimes vibrations or routine operation can loosen wires over time. With the generator off and safely isolated from power sources, visually inspect the wiring coming from the alternator to the control board. If you notice frayed, disconnected, or burned wires, these should be addressed by a qualified technician from professionals serving St Louis or Nashville.
• Examine the Voltage Regulator: The Automatic Voltage Regulator (AVR) ensures the generator sends out the correct voltage. If it fails, the output drops and triggers the 1913 error. Testing or replacing the AVR is best done by specialists; incorrect handling can result in further device damage.
• Check the Generator’s Brushes: In models with carbon brushes, excessive wear can cause poor electrical contact and low voltage. Look for signs like black dust or worn-down brush material. These are parts that can usually be replaced, but if you’re unsure, consulting a technician is best.
• Inspect Main Circuit Breakers: Some generators have internal circuit breakers that may trip if overloaded or if there is a surge. Reset the breakers and see if normal operation resumes. If they trip again, this can indicate a deeper issue with the alternator or generator windings.
• Review Maintenance Logs: If you use your generator often (especially during the stormy season in St Louis or summer heat outages in Nashville), regular oil, filter, and spark plug replacements are vital. Poor maintenance can lead to mechanical stress and voltage problems, so ensure these are up to date.
• Contact a Professional if Unsure: If none of the above steps resolves the error, or you notice strange noises, fuel smells, or physical damage, do not operate the unit. Contact an expert familiar with Generac generators in the St Louis or Nashville area to diagnose and safely repair the problem. Specialized diagnostic tools and expertise are often required for issues with the alternator, control board, or voltage regulation system.

Special Tips for Home and Business Owners

• Always turn off your generator and disconnect it from power before attempting any inspection or repair.
• Keep a maintenance log to track oil changes, battery replacements, and service visits, especially for frequent outages in St Louis and Nashville.
• Consult your owner’s manual for location of fuses, breakers, and internal components.
• Do not open or try to repair sealed or electrical components unless you have proper training.

When to Schedule Professional Service

If basic steps do not clear the 1913 error or if uncomfortable with electrical troubleshooting, schedule a service call. Generac generator repairs often require deeper diagnostics and specialty parts. Prompt attention prevents extended downtime and ensures safe, reliable backup power whether you’re in St Louis or Nashville.