Question about Eppendorf 5402 Refrigerated Centrifuge

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Error 5 problem displaying on how to fix it? - Eppendorf 5402 Refrigerated Centrifuge

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  • Ovais Rehman
    Ovais Rehman Aug 19, 2019

    i have centrifuge from eppendorf model: 5402... it is old model so the user manual is not available on web..

    it looks fine on start .. but when i start a run it gives error or "Balance rotor" ... i am checking it every electronics but everythings looks fine.. kindly guide me what i could do..
    ovaissaysalways@hotmail.com

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1 Answer

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  • 469 Answers

Make sure the unit is unplugged!!!
I believe it is the lid switch. You can remove the housing and the switch is located adjacent to the latch. Test it with a multi-meter.I do not recommend bypassing the switch except to test it's operation. Serious injury can occur!!!

Posted on Jun 26, 2017

  • Ovais Rehman
    Ovais Rehman Aug 19, 2019

    i have centrifuge from eppendorf model: 5402... it is old model so the user manual is not available on web..

    it looks fine on start .. but when i start a run it gives error or "Balance rotor" ... i am checking it every electronics but everythings looks fine.. kindly guide me what i could do..
    ovaissaysalways@hotmail.com

    please send me manual

  • Ovais Rehman
    Ovais Rehman Aug 19, 2019

    i have centrifuge from eppendorf model: 5402... it is old model so the user manual is not available on web..

    it looks fine on start .. but when i start a run it gives error or "Balance rotor" ... i am checking it every electronics but everythings looks fine.. kindly guide me what i could do..
    ovaissaysalways@hotmail.com

×

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Posted on Jan 02, 2017

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sequence is performed every time the unit is turned on (powered up). This test is performed
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Description

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sequence is performed every time the unit is turned on (powered up). This test is performed

because a permanently stuck key will inhibit the correct operation of the unit.

Possible Causes

1. A key on the display housing is permanently stuck in the operated condition.

2. One of the upper PCA's keypad interface chips has failed.

3. Liquid (perhaps perspiration) is present on the surface of a touch sensitive display.

Possible Remedies

1. Remove the keypad connector cable from the upper PCA. Restart the power up sequence, if

the ERROR 5 is no longer present, the keypad is the cause. The keypad is typically part of

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sequence is performed every time the unit is turned on (powered up). This test is performed

because a permanently stuck key will inhibit the correct operation of the unit.

Possible Causes

1. A key on the display housing is permanently stuck in the operated condition.

2. One of the upper PCA's keypad interface chips has failed.

3. Liquid (perhaps perspiration) is present on the surface of a touch sensitive display.

Possible Remedies

1. Remove the keypad connector cable from the upper PCA. Restart the power up sequence, if

the ERROR 5 is no longer present, the keypad is the cause. The keypad is typically part of

the display housing. Replace the display housing to correct the problem.

2. Remove the keypad connector cable from the upper PCA. Restart the power up sequence, if

the ERROR 5 is still present, the upper PCA is the cause. Replace the upper PCA to correct

this problem. Most upper PCA's are provided without software. Therefore, the software (chip)

must be removed from the upper PCA being replaced and re-installed on the replacement

upper PCA.

3. Wipe the surface of the touch sensitive display clean of all liquid. Restart the power up

sequence, if the ERROR 5 is no longer present, the liquid was the cause.

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The power up test sequence has detected a key in the operated condition. The power up test

sequence is performed every time the unit is turned on (powered up). This test is performed

because a permanently stuck key will inhibit the correct operation of the unit.

Possible Causes

1. A key on the display housing is permanently stuck in the operated condition.

2. One of the upper PCA's keypad interface chips has failed.

3. Liquid (perhaps perspiration) is present on the surface of a touch sensitive display.

Possible Remedies

1. Remove the keypad connector cable from the upper PCA. Restart the power up sequence, if

the ERROR 5 is no longer present, the keypad is the cause. The keypad is typically part of

the display housing. Replace the display housing to correct the problem.

2. Remove the keypad connector cable from the upper PCA. Restart the power up sequence, if

the ERROR 5 is still present, the upper PCA is the cause. Replace the upper PCA to correct

this problem. Most upper PCA's are provided without software. Therefore, the software (chip)

must be removed from the upper PCA being replaced and re-installed on the replacement

upper PCA.

3. Wipe the surface of the touch sensitive display clean of all liquid. Restart the power up

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Please remember to leave a rating.

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