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ACRP501 | Racks, Rack Accessories, & Cooling


Discussion in Racks, Rack Accessories, & Cooling started by Wayne , 10/22/2019 3:27 PM
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Posted in: General
  • AWMF


    Can you provide the latest firmware for the ACRP501.

    Also, I am constantly getting the following faults.

    1. Frequent humidifier fault 
    2. Humidifier cylinder full when unit alarm exist.

    Can you give an idea what could be the issue here.

    Water is present to the humidifier. The humidifier drains properly. Could this be the control board on the humidifier? or possible a firmware issue?

    The ACRP501 unit is currently running on:

    Application Module: acrp v3.7.1 

    APC (AOS):  v3.73

    and the Humidifier Factory information is:

    Controller Firmware:  4.18.3
    Hardware Revision:  C8
    Date of Manufacture:  12/04/2008
    Humidifier software:  1.7 


    Thank you in advance.


  • L2SupportServices-Cooling

    Hello Wayne. Here is a link to the download off our website.


    For the humidifier faults, check the conductivity of the water that you have in your building. Generally the conductivity of the water is too low. This means that the bottle can not read the level of the water in it, so it will continue filling till it hits the high water level sensor. Try throwing some table salt into the bottle. This will raise the conductivity so it will be able to read the water level and should stop it from overfilling.

    Thank you

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