Eppendorf Centrifuge 5424 R Service Manual -

Often caused by excessive rotor load or voltage issues. 5. Calibration and Verification

Carefully peel back the insulation material surrounding the sensor mounting bracket. Disconnect the sensor wire from the mainboard.

: Electrical requirements (230V/120V), fuse ratings (3.15 AT or 6.3 AT), and acceleration/deceleration curves. Common Service Procedures

| Error Code | Message | Suggested Remedy | | :--- | :--- | :--- | | | Drive overheated / General drive error | Turn centrifuge off for > 20 seconds. For overheating, allow drive to cool down for at least 15 minutes. | | Err 7 | Major deviation in speed control | Wait for rotor to stop. Ensure rotor is securely tightened. | | Err 18 | High temperature variation in rotor chamber | Check vents for obstructions. Thaw any ice or let device cool down. | | Err 24 | Cooling unit fault / overheating | Allow centrifuge to cool down, then repeat the cycle. | | LID ERROR | Lid cannot lock or release | Try closing again. Switch off/on. Activate emergency lid release if needed. | Eppendorf Centrifuge 5424 R Service Manual

| Interval | Task | |----------|------| | Monthly | Clean condenser filter, inspect rotor for corrosion. | | Quarterly | Check lid seal integrity, measure imbalance threshold. | | Annually | Calibrate temperature display (±1°C), test emergency lid release, replace drive belt (if applicable). |

To prevent service calls, follow this manufacturer-recommended upkeep: Wipe Chamber: Use a soft cloth with pH-neutral detergent.

Regular care prevents many of the electronic errors listed above: Often caused by excessive rotor load or voltage issues

Eppendorf Centrifuge 5424 R Service Manual: Ultimate Maintenance Guide

For complex repairs (e.g., compressor replacement), contact Eppendorf Service directly. Summary Table of Key Features Specification Max Speed 15,000 RPM (21,130 × g) Capacity 24 × 2.0 mL Temp Range -10°C to +40°C Noise Level Maintenance 12-month interval

| Error Code | Symptom / Message | Typical Cause | Recommended Remedy | | :--- | :--- | :--- | :--- | | | Lid cannot be locked. | User error. | Try to close the centrifuge lid again. | | LID ERROR | Lid cannot be released. | Software glitch. | Switch device off and on again, then press the open key. If error persists, use the emergency lid release. | | LID LIFT (5424 R) | Lid not opened wide enough. | Mechanical obstruction. | Open the centrifuge lid wider by hand. | | NO RPM | Error in speed measuring system. | Electronic glitch. | Leave the device switched on for 10 seconds or up to 6 minutes until the error clears. | | Err 6 | Drive error / Drive overheated. | Overload or thermal event. | Repeat the run. If error reoccurs, power cycle after >20s. For overheating, allow drive to cool for ≥15min. | | Err 7 | Deviation in speed control. | Rotor not tightened. | Wait for rotor stop, then tighten the rotor firmly. | | Err 9–17 | Electronic system error. | Electronics. | Switch the centrifuge off and back on after >20 seconds. | | Err 18 (5424 R) | High temperature variation. | Airflow blocked / ice buildup. | Check vents and settings. Thaw ice or switch off to cool down. | | Err 19, 24 (5424 R) | Cooling circuit overheated / fault. | Poor ventilation / overheating. | Check air circulation, clear vents, and allow unit to cool down. | | Err 20, 21 (5424 R) | Temperature sensor faulty. | Hardware failure. | Power cycle the centrifuge after >20 seconds. If error persists, contact service. | | Shaking on Startup | Imbalance. | Rotor loaded asymmetrically. | Stop, reload symmetrically, and restart the device. | Disconnect the sensor wire from the mainboard

When the 5424 R displays an error, the user manual gives a simple message like "Contact Service." The provides the actual fix. Below is a curated list based on typical service manual tables.

To ensure optimal performance and extend the lifespan of the Eppendorf Centrifuge 5424 R, regular maintenance is essential. The Service Manual recommends the following maintenance procedures:

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The 5424 R is designed for high-performance laboratory applications. Key technical parameters found in the manual include: