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Generac Error Code 1600 [How to Fix

Generac Error Code 1600 [How to Fix

Generac Error Code 1600: Want to know what is Generac error 1600 and how to fix it? In this article, I’ll show you easy and simple troubleshooting steps to get rid of this error code.

Generac manufactures a large selection of generators that are specially engineered to deliver maximum power while maintaining optimum portability. Just like any other product, it also causes few errors and error code 1600 is one of them.

What is Generac Error Code 1600

Generac Error Code 1600 means the generator is running too slowly (underspeed). It's not hitting the right RPM, which can happen due to various reasons.

There are a few possible causes of this error code, including:

  • Low fuel level
  • Dirty fuel filter
  • Faulty spark plugs
  • Worn valves
  • Mechanical problems with the engine

How to Fix: Generac Error Code 1600

You can follow these troubleshooting steps to get rid of the Generac error code 1600 issue:

Check Fuel

If you see error code 1600, start by checking how much fuel is left in the generator's tank. If it's low, fill it up and see if the error goes away.

Check Fuel Filter

If the error persists, examine the fuel filter. If it is dirty or clogged, replace it with a new one. This can sometimes solve the issue.

Check Spark Plugs & Valves 

If the fuel filter isn't the problem, focus on the spark plugs. Replace them with fresh ones if they appear worn out. If that's not the issue and you've recently replaced the spark plugs, then check the valves. If they're worn, they might need adjusting or replacement.

If the valves are fine, but the error remains, it's a good idea to have a mechanic check the engine for mechanical problems.

Contact an Authorized Dealer 

If none of the above fixes work, you can always contact an authorized Generac dealer for assistance.

Additional Tips:

If you've tried everything else but Generac Error Code 1600 won't go away, it could be due to an issue with the generator's controller – like its command centre. If that's the case, it's time to call in a mechanic who knows about these things to take a look at it.

Here are some extra tips to help you troubleshoot Error Code 1600:

If you don't feel comfortable about checking things like the fuel level, filter, spark plugs, or valves yourself, don't worry. You can ask a mechanic – they're the experts!

If you have a special service contract with Generac, reach out to them for help. They're there to assist you.

If you don't have a Generac service contract, you can find a capable mechanic by searching online or getting in touch with a local Generac dealer.


I hope the above article on Generac error code 1600 has helped you to know the causes of error 1600 and provided a way to get rid of this issue.


What is Generac Error Code 1600?

The generator is operating too slowly (underspeed), according to Generac Error Code 1600. It is not reaching the proper RPM.

How do I fix a Generac error 1600?

You can fix this error by checking things like the fuel level, filter, spark plugs, or valves.

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