Hansen Super Techs | HVAC, Electrical & Plumbing Mobile AL

8 Common Signs Your Generator Needs Repair

Apr 14, 2023 | HansenCares

If you’ve lived in Alabama for any length of time, you are probably aware of the state’s frequent and extreme weather events like tornadoes, hurricanes, and thunderstorms. As a result of these storms, many people throughout the state experience power outages that can last for days, making generators an absolute necessity. But what does one do when it isn’t delivering the necessary backup energy? This can be frustrating,  but if you’re prepared, you’ll always have a reliable energy source at home. This article will discuss eight of the best reasons for generator repair in Mobile, AL.

No Power

One of the most obvious signs that your generator needs repair is a lack of power output. You may need to contact a generator repair tech if your generator produces little to no power when you power it on. Typically, this problem can be caused by a faulty alternator, a damaged voltage regulator, or a malfunctioning fuel system. 

Are you prepared for a potential power outage?  Prepare for the next power outage with these handy tips. 

Unusual Sounds

Another sign that your generator requires repair is unusual noises. If you hear strange noises coming from your generator, such as knocking or rattling sounds, it could indicate one of the following problems: 

Loose or Damaged Parts

If you hear rattling or clanging sounds, there’s a high chance that there are loose or damaged parts. Sometimes tightening bolts or replacing a muffler is all that is necessary for the noise to go away. 

Worn Bearings

The motor of the generator is equipped with bearings. When these bearings wear out, they will make a squealing or high-pitched sound. 

Engine Problems

If there is an issue with the engine of the generator, you may end up with a knocking or thumping sound. Engine problems are fairly critical to a generator and must be investigated immediately.

Fuel Leaks

Leaking fuel is not a good sign, and we recommend getting the problem fixed by a generator repair tech in Mobile, AL as soon as possible. Leaks are most commonly caused by damaged fuel lines, loose connections, or faulty fuel pumps. These leaks can be dangerous.  Fuel is flammable; any leak can lead to a fire or explosion if not addressed quickly. 

Delayed Start

Sometimes a generator can have trouble starting. Other times, it may require several attempts before delivering the necessary power to the home. These challenges are typically signs of a problem with the starter motor, battery, or fuel system. It can be frustrating when the generator isn’t starting as it should, especially when you’ve lost power in the house. Make sure your generator has a self-test feature that automatically runs a periodic test to ensure that there are no power issues in the generator. 


There may be a problem with the generator’s cooling system if it tends to overheat.  Some causes of overheating include faulty thermostats, low coolant levels, or damaged water pumps. When left untreated, this problem causes serious damage to a generator, so it’s important to have it looked at by a generator repair tech in Mobile, AL as soon as possible.

Electrical Issues

Electrical issues are more common in older or damaged generators. They present as flickering lights or other electrical malfunctions,  indicating a problem with the alternator or other electrical components. Electrical issues can be dangerous, so addressing them as soon as possible is important.

Low Oil Pressure

Low oil pressure is an issue with the generator’s oil pump or other components. This can cause serious damage to your generator’s engine if it is neglected. If you suspect this issue with your generator, do not hesitate to contact a generator repair service in Mobile, AL

Excessive Smoke

When your generator produces excessive smoke, there could be a problem with the fuel system or engine. Many factors can contribute to excessive smoke, including clogged air filters, malfunctioning fuel injectors, and worn piston rings. A generator with excessive smoke may also indicate a more serious problem, so it’s important to have it inspected by a professional.

Stay Powered Up with Expert Generator Repair Services in Mobile, AL

Don’t leave your generator in disrepair. all Hansen Super Techs for prompt and reliable service by calling (251) 227-4441.