Onan generator won't start

4 Potential Causes Why Onan Generator Won’t Start

Standby portable generators have become essential equipment for power generation needs. When it comes to choosing the best generators, nothing could be better than Onan. If you wish to give your recreational vehicle (RV) a boost of power, you can rely on Onan generators. In case, Onan generator won’t start, you would have to look where the problem lies. Here’s a guide as to what top do in such situation.

Why Onan Generator Won’t Start?

Anyone who owns a recreational vehicle knows how a power generator keeps the vehicle moving. Sometimes, there may be a case that the Onan generator may fail to start! What then? Here’s where to look for potential damages.

1. Use Of Stale Oil

People do not intend to change the generator’s oil often. If you haven’t put your Onan generator in use for long, there may be a case that the oil has degraded. The thing is; when oil sits in the tank for extended durations, its quality deteriorates.

The right thing to do is to inspect the generator’s oil visually. If it looks contaminated, it is most likely that the oil quality is the reason behind the Onan generator won’t start. To prevent this from happening, run the generator dry, or you make it a practice to add fuel stabilizer.

2. Air Filter Clogging

For proper functioning of the Onan generator, the equipment demands a fair amount of airflow. When the air flow system clogs, the required flow of air gets restricted. The best thing would be to pull off the air filter to check whether it has some impurities clogged in.

Solving onan generator won’t start issues
Why onan generator won’t start

It is always a better idea to clean the air filter either with a brush or by knocking it on the floor. On the other hand, if there are wears and tears of the air filter partition, you would have to replace it.

3. Degraded Carburetor

The gas with impurities is likely to enter the carburetors. Once that happens, the carburetor hinders the starting of an Onan generator. In order to avoid this from happening, cleaning the carburetor should become a priority.

Either you spray the carb cleaner into its orifices without detaching it all together. Or you could clean it by detaching the part entirely from the generator system. Remove all the screws and keep them safely aside, in case you choose the latter. Brush off the contaminants using a cleaning liquid, and tightly screw back the carburetor once done.

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4. Fuel Filter Issues

If you checked everything, and your Onan generator still won’t start, you could look into the fuel filter. In case there are leaks, cracks, or choke-ups, then you would have to address the problem. This issue is a rare occurring, that is why it should be checked for when everything else looks perfect.

The procedure is to detach the fuel line from where it establishes the connection with the carburetor. Wait and watch for the fuel to pass through the oil filter. If that does not happen, the fuel filter is clogged and need replacement.

Finding out why Onan generator won’t start
find out when Onan generator won’t start

Wrapping Up

The Onan RV generators are the best power producers and known to deliver quality. Sometimes, there may be a case that Onan generator won’t start, and the common causes for the same are listed above. If you do not manage to detect the problem, do not worry, as getting expert help is never too late.

Last Updated on November 27, 2018

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