Eppendorf Concentrator plus User Manual download pdf (Page 32)

7 Troubleshooting

Concentrator plus / Vacufuge® plus — Operating manual

7 Troubleshooting

If the suggested measures fail repeatedly, please contact Technical Service. You can find the

contact addresses at the end of this operating manual or on the Internet under

www.eppendorf.com

(International) or www.eppendorfna.com (North America).

7.1 General errors

Symptom / message Cause Remedy

No display No mains power connection

 Check mains power connection.

No display Power failure

 Check mains fuse for the device (see

Replacing fuses on page 33).

 Check mains fuse of the laboratory.

Lid of the device cannot

be opened.

Rotor still running.

 Wait for rotor to stop.

Lid of the device cannot

be opened.

Power failure 1. Check mains fuse for the device (see

Replacing fuses on page 33).

2. Check mains fuse for the laboratory.

3. Activate emergency release . (see p. 35).

Device cannot be started. Lid of the device not closed.

 Close lid of the device.

Device shakes when it

starts up.

Rotor unsymmetrically loaded. 1. Stop device and load symmetrically.

2. Re-start device.

No noticeable

concentration

Damaged sealing ring in the lid of the device.

 Insert new sealing ring (see Other

accessories on page 41).

Pump does not start up. Pump is overloaded.

Thermo switch in the motor winding of the

pump triggered.

 Let pump cool down.

Pump does not start up. Overpressure in the exhaust gas line

 Open exhaust gas line.

No output Long, thin hoses

 Select short hoses with a large

cross-section.

No output Condensate in the pump

 Let pump run for a few minutes and press

mode/vent key several times.

Temperature value blinks. Deviation from emission condensernominal

value by ± 5 °C

 Let remaining heat from previous run cool

down.

 Reduce excessive ambient temperature, if

applicable.

Temperature value blinks

fast.

Deviation from nominal value by + 10 °C

 Switch off external heat radiators (e.g.

halogen lamp).

Liquid is collecting in the

hoses.

 Activate ventilation function.

 Check fall of the hoses.

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Eppendorf Concentrator plus User Manual Page 32

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