Troubleshooting the Bizzocchi Autel 230HP Fault Code

[MikePhua]

The Bizzocchi Autel 230HP is a truck-mounted aerial work platform designed for tasks requiring significant reach and precision. However, like all complex machinery, it can encounter faults that hinder its operation. One such issue reported by operators is the LED indicator displaying the error message: "Outdoor relay on not operating CPU1, if present." This article delves into the possible causes of this fault and offers guidance on troubleshooting and resolution.
Understanding the Bizzocchi Autel 230HP
Manufactured by Bizzocchi, the Autel 230HP is a truck-mounted telescopic boom lift. It boasts a working height of 23 meters, a horizontal reach of 11.7 meters, and a platform capacity of 200 kg. These specifications make it suitable for various applications, including maintenance, construction, and tree trimming. The machine's hydraulic system, controlled by a central processing unit (CPU), manages the movement and stability of the platform.
Decoding the Fault Code
The error message "Outdoor relay on not operating CPU1, if present" suggests an issue with the relay responsible for powering the CPU. Relays are electrical components that act as switches, controlling the flow of electricity to various parts of the machine. If the relay fails or malfunctions, it can prevent the CPU from receiving power, leading to operational issues.
Potential Causes

1. Faulty Relay: The most straightforward cause is a defective relay. Over time, relays can wear out due to electrical stress or environmental factors.
   
2. Wiring Issues: Damaged or corroded wires can impede the electrical signal between the relay and the CPU, leading to communication failures.
   
3. Blown Fuse: A blown fuse in the circuit can interrupt the power supply to the relay, causing the CPU to remain inactive.
   
4. CPU Malfunction: While less common, a malfunctioning CPU can misinterpret signals or fail to activate the relay as required.
   

Troubleshooting Steps

1. Visual Inspection: Begin by inspecting the relay and associated wiring for any visible signs of damage or wear.
   
2. Check the Fuse: Locate and examine the fuse connected to the relay circuit. Replace it if it's blown.
   
3. Test the Relay: Using a multimeter, test the relay's functionality. If it fails to operate correctly, replace it with a compatible unit.
   
4. Inspect the CPU: If the above steps don't resolve the issue, the CPU may need to be tested or replaced. This step often requires professional assistance.
   

Preventative Measures
Regular maintenance can help prevent such faults:

• Routine Inspections: Conduct regular checks of electrical components to identify potential issues early.
  
• Protective Covers: Use covers to shield relays and wiring from environmental factors like moisture and debris.
  
• Professional Servicing: Schedule periodic servicing with qualified technicians to ensure all systems function optimally.
  

Conclusion
The "Outdoor relay on not operating CPU1" fault in the Bizzocchi Autel 230HP is typically related to issues with the relay or its associated components. By systematically diagnosing and addressing the potential causes, operators can restore the machine's functionality. Regular maintenance and prompt attention to faults can enhance the longevity and reliability of the equipment.