JLG Scissor Lift Warning Light Flashing: What It Means And What To Do

If you’re operating a JLG scissor lift, encountering a flashing warning light on the control panel can be concerning. However, these warning lights are designed to keep you safe and alert you to potential issues with the lift. In this guide, we’ll explain what these warning lights mean and provide troubleshooting steps to help you address the issue.

According to the JLG troubleshooting manual, there are several reasons why a warning light may flash on your scissor lift. These can include a build-up of dirt or debris in the lift’s sensors, a problem with the hydraulic fluid level, or a loose wire or connection. By understanding the meaning behind these warning lights, you can take the appropriate steps to address the issue and ensure the safe operation of your lift.

The JLG scissor lift manual and JLG.com service manuals provide additional information on troubleshooting and maintenance for your lift. By following the recommended maintenance schedule and addressing any warning lights promptly, you can keep your JLG scissor lift in top condition and ensure safe and efficient operation on the job site.

Table of Contents

Color Coded Caution: Classifying Flashing Warning Lights

JLG scissor lifts come equipped with warning lights that flash in different colors to indicate different levels of urgency. Understanding what these colors signify can help you quickly identify potential issues and take appropriate action. Here’s a breakdown of the most common color classifications:

Red Flashing Lights

Red flashing lights indicate a severe issue that could compromise safety or prevent lift operation altogether. Here are some examples of what a red flashing light might signify:

Emergency Stop Activated: A continuously flashing red light might signify the emergency stop button is engaged, preventing lift operation.
System Malfunction: Rapidly flashing red lights, accompanied by an audible alarm, could indicate a critical system malfunction requiring immediate attention.

Amber Flashing Lights

Amber flashing lights generally signify a fault or non-critical issue that might not prevent operation but requires attention. Here are some examples of what a flashing amber light might indicate:

Overload: A flashing amber light with an “overload” symbol might indicate the platform exceeds the lift’s rated capacity.
Tilt Sensor Activated: Flashing amber lights with a “tilt” symbol could signify the scissor lift is exceeding the safe operating tilt angle.

Green Flashing Lights

Green flashing lights typically indicate normal operational functions or ongoing processes. Here are some examples of what a flashing green light might signify:

Engine Preheating: A slow, steady green flash might signify the engine is preheating before operation.
Platform Leveling: Flashing green lights during platform movement could indicate the automatic leveling system is engaged.

It’s important to note that these are just a few examples of what the different flashing warning lights might signify. For a more comprehensive list of JLG fault codes and system distress codes, refer to the JLG fault code list or old JLG fault codes list. You can also find a JLG fault codes list pdf online for quick reference.

If you encounter a flashing warning light on your JLG scissor lift, be sure to consult the manufacturer’s manual or contact a qualified technician for assistance.

Beyond the Basics: Consulting Your JLG Manual and Diagnostic Tools

When your JLG scissor lift’s warning light starts flashing, it’s important to take immediate action to prevent any potential issues. While the color classification provides a general understanding of the warning light’s severity, for precise troubleshooting, you should refer to your JLG scissor lift’s specific operation and maintenance manual. Here’s what you’ll find:

Dedicated Warning Light Section

Your JLG scissor lift’s operation and maintenance manual will have a dedicated section that decodes the meaning and potential causes behind each flashing light pattern, along with specific troubleshooting steps. This section will provide you with a detailed explanation of the warning light’s flashing pattern and what it indicates. You will be able to identify the cause of the issue and take the necessary steps to resolve it.

Diagnostic Codes

JLG scissor lifts might utilize a diagnostic system that assigns specific fault codes to various malfunctions. The manual will explain how to retrieve and interpret these codes for further troubleshooting. By retrieving the fault codes, you can get a more detailed understanding of the issue and take the necessary steps to fix it.

To access the diagnostic codes, you will need to connect your JLG scissor lift to a diagnostic tool. The JLG Mobile Analyzer App is a free tool that can be downloaded to your mobile phone or tablet. The app syncs with the JLG Mobile Wireless Access Module, which can be ordered through Online Express or a JLG representative. The wireless module plugs into a port on a JLG machine, and the app receives and displays a detailed diagnostic read-out from up to 150 ft away.

In addition to the app, JLG also provides a PDF library of equipment manuals that includes operation and maintenance manuals, service manuals, and parts manuals. These resources can be extremely helpful when troubleshooting issues with your JLG scissor lift.

Safety First: Prioritizing Safe Operation and Professional Assistance

When operating a JLG scissor lift, safety should always be the top priority. If you encounter a flashing warning light, it’s crucial to take immediate action to ensure the safety of yourself and others. Here are some safety precautions to prioritize:

Cease Operation

If you notice a flashing warning light, immediately stop using the scissor lift and safely lower the platform if possible. Continuing to operate the lift with a warning light could result in serious injury or damage to the equipment.

Consult the Manual

Refer to your JLG scissor lift’s operation and maintenance manual for the specific meaning of the flashing light and any recommended troubleshooting steps. The manual may contain a jlg scissor lift battery diagram, jlg scissor lift wiring diagram, jlg 1930es battery wiring diagram, or scissor lift battery diagram, which can be useful in identifying the source of the issue.

The manual may also include information on jlg system distress codes, jlg scissor lift troubleshooting, and jlg battery charger troubleshooting. Take the time to review the manual carefully to ensure you understand the issue and any recommended steps for resolving it.

Seek Professional Help

If the flashing light signifies a critical issue or you’re unsure about the cause, don’t hesitate to contact a qualified JLG service technician for diagnosis and repair. A technician may be able to provide additional information on jlg 1932r service manual, system distress jlg, or how to reset jlg scissor lift. Attempting to repair the lift yourself could result in further damage or injury.

Conclusion

In conclusion, understanding the meaning behind flashing warning lights is crucial for operating your JLG scissor lift safely and efficiently. By following the color classification system, consulting your JLG manual, and prioritizing safety protocols, you can ensure a smooth and productive work experience while minimizing operational downtime. Remember to always take a proactive approach to addressing warning lights to safeguard both your safety and the longevity of your JLG scissor lift.

If you notice a flashing warning light on your JLG scissor lift, take immediate action to determine the cause. Check for any loose wires or connections, ensure proper hydraulic fluid levels, and clean any debris from the lift’s sensors. If you are unable to resolve the issue, consult your JLG manual or contact a qualified technician for assistance.

Prioritizing safety protocols is essential when operating heavy machinery such as a JLG scissor lift. Always wear appropriate personal protective equipment, follow established safety guidelines, and never attempt to operate the lift if you are unsure of its condition. Understanding the meaning behind warning lights empowers you to operate your JLG scissor lift safely and efficiently, ensuring a productive work experience while minimizing operational downtime.

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