Unusual sounds coming from your generator should pique your curiosity and prompt you to take quick action. Depending on the types of noises it makes, it may need professional servicing. Discover the odd noises that suggest the generator has parts that need repair or replacement.
Metallic Clanking
A generator that makes metallic clanking noises could have loose or broken parts in it. These parts include the connecting rods, crankshaft parts, fasteners, mounting screws, and the rotor.
Age, imbalance, and vibrations can loosen or damage them. This can cause loud noises as they rattle inside the generator. The solution to this noise is to hire one of our electricians to replace or repair the loose or missing screws.
High-Pitched Whining
A high-pitched whine usually points to a problem. Worn bearings, a misaligned belt, or an alternator issue could cause the problem. It can also occur because of interference with the ground loops, an unbalanced fan blade, or a damaged tensioner.
If you hear this noise coming from yours, check the belt tension. Look for signs of wear and tear on moving parts, like the bearings.
Thumping or Knocking
Thumping or knocking is another unusual sound that demands your attention. Many times, this sound occurs because the engine in the generator is misfiring.
It could mean that the generator has bad spark plugs or a problem with its fuel system. Likewise, a worn-out piston slap or connecting rod will also create knocking or thumping noises.
Buzzing
When your generator operates as expected, it should not produce a loud buzzing sound. Buzzing often stems from underlying troubles like:
- Imbalanced or loose internal components
- Electrical grounding problems
- Damaged muffler or exhaust system
- Blocked or dirty air filters
- Engine surging
To resolve this noise, turn off the generator and inspect its load and wiring. Hire one of our electricians if you cannot find the cause of the buzzing sound.
Grinding
The generator’s motor requires lubrication for its moving parts. Without it, the parts will move against each other, making a loud grinding noise.
Grinding creates friction and increases the chances of the generator overheating. It also wears out moving parts, like the bearings in the motor.
If you hear a grinding sound, turn off your generator and check the oil level in it. Refill the oil if needed.
Hissing
A hissing noise usually indicates a coolant or fuel leak in the generator. This damage requires immediate electrical repairs. Do not use your generator until you have had the leak repaired.
Professional Help Is Just a Call Away!
A generator in need of repair services can certainly make a number of unusual sounds. Resolve any weird sounds coming from your generator by contacting Fisher Electric. We’ll be happy to provide the generator installation, inspection, or repair services you need in Los Gatos, Soquel, Felton, or anywhere else in the Central Coast area.
