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| Error Code | Likely Cause | Troubleshooting Steps | Reference | | :--- | :--- | :--- | :--- | | | Rotor imbalance or over-speed detection triggered by the rotor sensor. | * Check rotor for proper seating and secure fastening. * Verify tubes are balanced in weight and position. * Clean rotor and adapters thoroughly. * Let the centrifuge cool for 15-30 minutes. * If persistent, check rotor ID sensor (may need professional service). | | | Error 01 / Error A | General electronics failure or power issue. | * Check power supply and cord connections. * This often indicates a non-balance related electronics failure. If the basics are fine, it likely requires professional repair. | | | "balan." Error | Displayed on screen, indicating an imbalance. | * This error appears when the imbalance is detected. Follow all balancing steps above. * Check if the unit is on a level surface and all feet are present (a missing foot can cause this error at low speeds). | | | Rotor Shuts Down Below Max Speed (e.g., 6,000 rpm) | Likely a rotor imbalance or over-speed detection, not a speed issue. | * This is often a sensor problem. Follow the troubleshooting steps for Error 02. * Worn or loose sensors can trigger a premature shutdown. Contact Eppendorf service if the issue persists. | | | Error Code "E001" - "E005" | Inductive fault (E001), unstable speed (E002), overload protection (E003), centrifuge not started (E004), heater fault (E005). | * These codes are general indicators. For E001-E003, check rotor and balance. For E004, ensure the lid is properly closed. For E005 (on refrigerated models), check the cooling system. | | | No Power / Blank LCD | Blown fuse, power supply failure, or mainboard issue. | * Check the power cord, outlet, and any fuses. * On some Eppendorf models, a power outage can cause the +5VDC supply to fail, leading to a blank LCD. This usually requires professional electronics repair. | | eppendorf 5402 manual
The Eppendorf 5402 manual serves as a comprehensive guide for the operation, maintenance, and troubleshooting of this versatile laboratory centrifuge. By following the instructions and guidelines provided, users can ensure optimal performance, safety, and longevity of the device. Always refer to the manual for specific details and updates. He pressed 'Start'
Apply a thin layer of grease (supplied with the centrifuge) to the rotor lid threads. * Verify tubes are balanced in weight and position