What would Cause a Generator Not to Produce Power? (Causes)

what would cause a generator not to produce power

How to Troubleshoot a Generator That Won’t Produce PowerThe generator is responsible for producing power for electricity; thus, it has a somewhat complex mechanism. Sometimes, you might have noticed it does not produce enough power, although it consumes fuel and makes a regular noise. What would cause a generator not to produce power? Let’s discuss the reasons behind this issue. Besides, you will be able to learn how to fix those by yourself from this blog post.

What are Some Common Reasons Why a Generator Won’t Produce Power? 

These are the most common reasons for a generator not to produce power.

  1. Tripped Circuit Breaker – circuit breaker helps to flow the power within the mechanism of the generator. When it is tripped, the generator cannot produce power. Then the breaker switches will be in the ‘off’ position.
  2. Lack of Residual Magnetism – there are rotating electromagnets to produce power. When there is a lack of magnetism, this problem can arise.
  3. Worn Brushes – there are small carbon pieces that connect with the rotor. If they have worn out, the generator can malfunction. If they have worn out, their original shape changes too.
  4. Busted Automatic Voltage Regulator (AVR) – AVR is the responsible component for keeping the voltage level steady. Thus, the alternator is protected from surges. If there is a broken or damaged AVR, it disturbs the overall process of the generator.
  5. Filthy Air Filter – if the air filter has been blocked by dirt and debris, there is no proper airflow for the combustion process. As a result, the generator can malfunction.

How to Troubleshoot a Generator That Won’t Produce Power? 

To diagnose the generator, follow these steps.

  • Check the control panel to see if there is a faulty circuit breaker. In case the switches are in ‘off’ mode, there might be a tripped circuit breaker. In case the ‘reset’ button pops up, there might be a tripped GFCI breaker.
  • When you unscrew the brushes, you will see some cracks, chips, burnt and melted spots, etc. They are indicators of worn brushes.
  • Use a multimer to measure the voltage level in your generator. If the reading is somewhere between 5 to 10 volts, there is no issue with the AVR. If the number lies between 3 to 5 or you cannot see a voltage at all, the problem can exist in the AVR.
  • If you have not used the generator for a long time or the generator is running without a load, there may be a loss of residual magnetism.

How to Troubleshoot a Generator That Won’t Produce Power

How to Replace a Faulty Voltage Regulator? 

  1. First, turn off your generator to disconnect from the load.
  2. Next, find the AVR in your generator. In general, it is placed close to the control panel or on the panel itself. If it is hard to find the AVR, refer to the user manual.
  3. There is a series of wires that makes the connection between the AVR and the generator. Disconnect them with a careful hand. It is highly recommended to label the wires or take a photograph before disconnecting so you will not face difficulties when connecting those again.
  4. Now the old AVR can be removed. If it is necessary, use the relevant tools to remove screws and bolts.
  5. Take your new AVR and place it in the same position that the old one was placed in. After that, connect the wires to the relevant terminals.
  6. As the last step, you need to test the generator to check whether everything is working. Start your generator and wait for a few minutes. Utilize a voltage meter to test the voltage level.

How to Clean a Generator’s Air Filter? 

  1. First, turn off the generator. It would be better to wait at least 30 minutes until the machine cools down.
  2. Make sure to remove the spark plug. If it has become filthy, use a carb cleaner to clean it too.
  3. Next, you need to disassemble the air filter. In order to do that, take a screwdriver or a wrench and remove the bolts carefully. If it has been damaged, it would be better to go for a replacement.
  4. If cleaning is enough, start cleaning by removing the large particles of dirt and debris on the air filter first. Use a soft towel and wipe all the dirt. If it is too filthy, it is okay to rinse it in soapy water, but you must dry it prior to reinstalling. You should not use any harsh chemicals or bleach to clean the air filter. And you should avoid using sharp tools to remove stains because the filter will be chipped.
  5. Next, pour fresh engine oil onto the side of the foam. If there is extra oil, squeeze it to avoid dripping from the filter.
  6. Set the filter so its oiled side can face the engine. Then connect your spark plug again and close its cover.

How Do I Re Magnetize My Generator? 

  1. The generator should be stopped. Then the chuck on the battery drill needed to be opened. Now you can enter a treaded rod. After tightening the chuck, the chuck on the electric drill should also be opened and enter the other end of the rod.
  2. Connect the electric drill bit to the outlet of the generator.
  3. Next, the generator should be started to let warm up.
  4. After that, get help from another person to hold both drills firmly. Remember to squeeze the trigger as well.
  5. If you feel resistance, release the trigger. That means your generator is now working.

When to Call a Professional for Generator Repair? 

As we discussed above, some situations can be handled by yourself. But if you are unable to remedy your generator further, you need help from a professional. If you can notice these signs, call a professional.

Especially when there is an internal or external leak, you cannot fix it by yourself. And if the machine is too noisy or too hot, there may be a worn-out component, so you should turn off the generator and carry it for a diagnosis. Sometimes, the machine does not start at all. If you cannot find the reason, get help from a professional.

Watch this video,

Video Credits – Steve’s Small Engine Saloon 

You May Also Like



Please enter your comment!
Please enter your name here