Westinghouse igen4500 Problems (Troubleshoot)

If you’re the proud owner of a Westinghouse iGen4500, you know this portable inverter generator is renowned for its reliability and efficiency. But, like all machines, it may encounter occasional hiccups. In this blog post, we’ll explore common issues and their solutions, along with some frequently asked questions to help you get the most out of your iGen4500.

Common Problems of Westinghouse igen4500

Now, let’s get explore the common problems of Westinghouse Igen4500 with troubleshooting.

westinghouse igen4500 won’t start

If your Westinghouse iGen4500 won’t start, it could be due to several reasons. Here’s how you can troubleshoot the issue:

  1. Check the Fuel: Make sure your generator has sufficient fuel. If the generator has been sitting for a while, the fuel may have gone bad. In that case, empty the tank and replace it with fresh fuel.
  2. Check the Oil Levels: The iGen4500 has a low oil shutdown feature to protect the engine. If your oil levels are too low, the generator may not start. Make sure the generator is on a level surface and check the oil level. Refill it to the recommended level if it’s low.
  3. Inspect the Spark Plug: Remove the spark plug and inspect it for any signs of wear or damage. If it’s dirty, you can clean it. If it’s damaged, it will need to be replaced.
  4. Check the Air Filter: A clogged air filter can prevent the generator from starting. Check to make sure the air filter is clean and replace it if necessary.
  5. Inspect the Battery: If your model has an electric start and it’s not working, you might need to check the battery. If it’s dead or not holding a charge, you’ll need to replace it.
  6. Look for any blockages: Make sure the exhaust and ventilation are clear of any blockages. Build-ups or blockages could prevent the generator from starting.

Remember to always follow the manufacturer’s instructions when performing any maintenance on your generator. If you’re unable to solve the problem yourself, it’s best to consult with a professional or reach out to Westinghouse’s customer service.

Westinghouse igen4500 spark plug replacement

Replacing the spark plug on your Westinghouse iGen4500 generator involves several steps. Here’s a basic guide on how you can do it:

Tools Needed: Spark plug wrench or socket, a clean cloth, and a new spark plug. The Westinghouse iGen4500 typically uses a Torch E6RTC or an NGK CR7HSA spark plug, but double-check your manual to make sure.

Steps to Replace the Spark Plug:

  1. Ensure Safety: Before you start, make sure the generator is switched off and has cooled down completely to avoid burns. Remove the battery cables, starting with the negative one to prevent any accidental starts.
  2. Access the Spark Plug: Locate the spark plug on your generator. It’s usually under a rubber cap on the side of the engine. Remove the spark plug cap to expose the spark plug.
  3. Remove the Old Spark Plug: Use your spark plug wrench or socket to unscrew and remove the old spark plug. Turn the wrench counterclockwise to loosen it.
  4. Clean the Area: Use a clean cloth to clean the area around the spark plug hole. This prevents any debris from falling into the cylinder when the new spark plug is installed.
  5. Check and Adjust the New Spark Plug Gap: Before installing the new spark plug, check the gap between the electrodes at the tip of the spark plug with a gap tool. The gap should be 0.7-0.8mm. If it’s not, adjust it carefully. Refer to your generator’s manual for the exact gap required.
  6. Install the New Spark Plug: Thread the new spark plug into the hole by hand first to avoid cross-threading. Once it’s hand-tight, use the spark plug wrench to tighten it. Avoid over-tightening as it can damage the thread.
  7. Reconnect the Spark Plug Cap: Place the spark plug cap back on the new spark plug. Make sure it’s secure.
  8. Reconnect the Battery: Reconnect the battery, starting with the positive cable.

After replacing the spark plug, try starting your generator to ensure everything works correctly. If your generator still doesn’t start or run correctly, there may be another issue that needs to be addressed. Consult your user manual or reach out to Westinghouse customer service for further assistance.

westinghouse igen4500 problems and solution

Westinghouse igen4500 overload light on

If the overload light on your Westinghouse iGen4500 is on, it means the generator is overloaded, i.e., the power demand from the connected appliances is more than the generator’s capacity. Here are some steps to rectify the situation:

  1. Turn Off the Generator: For safety purposes, the first step should always be to turn off the generator.
  2. Disconnect All Loads: Unplug all devices from the generator.
  3. Reset the Generator: Turn the generator back on, but do not connect any devices yet. If the overload light turns off, it means the generator is working fine. If the light remains on, even with no load, there may be a mechanical or electrical issue, and you should consult with a professional or contact Westinghouse support.
  4. Evaluate Your Power Needs: If the overload light turned off when you disconnected all devices, it means you were running too many appliances or devices at once. You need to evaluate your power needs. Remember that the iGen4500 has a running wattage of 3700 watts and a peak wattage of 4500 watts. Make sure the total power requirement of the devices you’re connecting doesn’t exceed these limits.
  5. Reconnect Devices One by One: If you’ve determined your power requirements are within the generator’s limits, start reconnecting devices one by one, starting with the highest priority devices. Watch the overload light as you connect each device. If it turns on again, it means the last connected device is causing the overload. You may need to disconnect some devices or manage your power usage better to avoid overloading the generator.
  6. Keep Regular Maintenance: Ensure your generator is well-maintained. Regular maintenance not only extends the generator’s lifespan but also allows it to work at its full capacity.

It’s crucial to remember that continual overloading can lead to more serious generator problems or even complete burnout. If you’re frequently running into overloading issues, you may need a generator with a higher capacity to meet your power needs.

Start-Up Issues

In this case, You may face iGen4500 having difficulty starting.

In this case, you could Check the battery, fuel levels, spark plug, and starter. If the battery is dead, replace it. Ensure the fuel tank is full and the fuel is fresh. Replace the spark plug if it’s worn out, and if the starter is faulty, you may need professional assistance.

Engine Overheating

In this case, Your generator is running hot.

Ensure there’s sufficient oil and the air filter is clean. Maintain good airflow around the generator during operation. Overheating might indicate a more severe issue, so consider consulting a professional.

Poor Performance or Efficiency

Problem: Your iGen4500 is not performing at its best.

Solution: Make sure you’re using fresh, high-quality fuel. Check and adjust the carburetor if necessary, and replace worn-out spark plugs.

Excessive Noise

Problem: Your generator is louder than usual.

Solution: This could indicate a mechanical issue or a problem with the exhaust system. If basic maintenance doesn’t help, seek professional help.

Output Issues

Problem: The generator isn’t producing enough power.

Solution: Avoid overloading the system. If it’s still not providing enough power, there might be worn-out components or electrical issues requiring professional attention.

Oil Leaks

Problem: You notice oil stains under your generator.

Solution: Check the oil seal and oil level. If you find a leak or have overfilled the oil, drain and refill it according to the manufacturer’s instructions.

Frequently Asked Questions for iGen4500

How often should I change the oil in my iGen4500?

Westinghouse recommends changing the oil after the first 20 hours of use, then every 50 hours of use or every season, whichever comes first.

What kind of oil should I use for my iGen4500?

A high-quality SAE 10W-30 engine oil should work well for most conditions. However, if you’re operating in colder temperatures, you might need a different oil grade. Refer to your user manual for the manufacturer’s recommendations.

Why isn’t my generator producing power even though it’s running?

It might be due to overloading, a tripped circuit breaker, or a mechanical issue. Reduce the load, reset the breaker, and if the problem persists, seek professional help.

What kind of maintenance does the iGen4500 need?

Regular maintenance for the iGen4500 includes changing the oil, cleaning or replacing the air filter, checking and replacing the spark plug if necessary, and ensuring the unit is clean and free of debris.


In conclusion, while the Westinghouse iGen4500 is a robust machine, it may occasionally experience problems. Regular maintenance and proper use are key to keeping your generator running smoothly. If you encounter issues, don’t hesitate to consult a professional or reach out to Westinghouse’s excellent customer service. Here’s to many years of reliable power from your iGen4500!

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Rayan is an engineer, lives in a farmhouse. He has a passion for electronics and alternative energy. He loves to share his thoughts with other people. That is why he started the blog.

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