A generator is one such machine around which you need to be extra careful. That’s the reason it is built with several safety sensors and switches. The low oil sensor on the generator comes in handy as it prevents you from using the machine with excess oil.
Oil level sensors utilize magnetic reed switches. The switches are sealed in a plastic stem or stainless steel to measure the oil levels. It will power off and on the oil pumps automatically. Seldom, you have to bypass the low oil sensor.
If you have no prior experience, don’t worry. This article will guide you on how to bypass a low oil sensor on a generator in detail.
What Is the Reason for Low Oil Pressure?
Low oil pressure on your generator can be a result of multiple reasons. If the generator shows low oil pressure, it indicates that the generator is not working properly. The reason could be lubricant starvation or machine failure.
Some other reasons for low oil pressure are mentioned below.
Apparent Low Pressure
If you use a diesel generator, you will get the real-time analysis via a pressure gauge. Thus, you will know how the generator is functioning. A lower number on the machine denotes that the lubricant can work better; however, it does not use the desired pressure.
Using Low Amount of Oil
The oil does not flow directly into the engine. So, even if you add the required oil, the generator will not get enough oil to run efficiently. The reason could be leakage through oil plugs and seals or worn-out piston rings.
As a general rule, the generator will use more oil as it gets old.
If leakage is the problem, you need to find the leakage location by putting cardboard beneath the generator. After knowing the location, you can replace or repair the part and add more oil.
Defective Oil Pressure Gauge
To check if your generator is facing oil issues, you can inspect the accuracy of the gauge. Look at the oil levels when the generator triggers the oil pressure warning light. It could have a sensor problem when you do not find high temperatures or hear any noise.
Check twice to ensure the oil sensor pressure does not display inaccurate readings. You should think of changing the oil pressure sensor in case of incorrect readings. If the warning light does not go off even after doing that, change the oil pump.
Engine Wear
Generator deals with oil issues after some years of usage. You need to check the oil level whether it falls between the full and add lines. If yes, then the reason could be engine wear.
When you use the generator excessively, the oil pressure drops.
Clogged Filter
A clogged filter can also result in oil issues. The bypass valve might not function when the filter is filled with contaminants. This results in lubricant starvation. The clogged filter is because of overextended oil and other elements such as soot and water contamination.
Steps to Bypass Low Oil Sensor on Generator
Bypassing a low oil sensor is not a permanent fix. People bypass the low oil sensor as the engine stops working because it is filled with excess oil. Below are the steps to follow to safely bypass the low oil sensor.
Locating the Yellow Wire
Every generator has a yellow wire. You can find it on a crankcase somewhere around the oil fill cap. Or, you can look under the panel.
Disconnect the Wire
Once you locate the yellow wire, you can find a green wire connector. However, the connector color may be different for different brands. After that, you need to disconnect the yellow wire from the green wire connector.
Run the Generator
After disconnecting the wire, let your generator run for about thirty minutes. This will allow the oil sensor to detach from the engine’s bottom. Further, you can connect the low oil sensor after you have completed the step.
Final Thoughts
It’s not that difficult to bypass low oil sensor on a generator. The steps are easy to follow. However, you need to take safety precautions while handling such large machines. You should understand and read the manual before directly working on the unit.
Double-check to ensure that generator is not operating when you bypass the low oil sensor. Once you have bypassed the low oil sensor, you will have to reconnect all the wires. Make sure you do it carefully; otherwise, it can damage your generator.
