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  1. #1
    Join Date
    Dec 2006
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    London & Surrounding Counties
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    Hitachi Ceiling Mounted Indoor Unit Defect



    Just a quickie!

    Attended a call out last night to a site that had 2x Hitachi VRF systems in place, running 16 indoor ceiling mounted units approx 5 yrs old.

    they were having difficulty with heating. On further inspection I found that a layer of self adhesive foam insulation found internally within the indoor unit, above the louvre had become dislodged. This dislodged foam had fallen immediately behind the louvre blocking all air supply.

    All sorts of faults were being thrown up which eventually I manged to clear. This was found to be the case on two thirds of the indoor units on site, so we removed all of the foam in the end to be on the safe side.

    I just wondered if anyone else has encountered this, only Hitachi deny all knowledge of being aware of such a maunfacturing issue, as you expect they would do.



  2. #2
    Join Date
    Mar 2007
    Location
    uk
    Age
    51
    Posts
    122
    Rep Power
    18

    Re: Hitachi Ceiling Mounted Indoor Unit Defect

    Hi, yes also had this problem on Hitachi RPC5 units resulting in the louver motor burning out.

  3. #3
    Brian_UK's Avatar
    Brian_UK is offline Moderator I am starting to push the Mods: of RE Site Moderator : and general nice guy
    Join Date
    Mar 2001
    Location
    Dorset
    Age
    76
    Posts
    11,192
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    60

    Re: Hitachi Ceiling Mounted Indoor Unit Defect

    Had it with other makes not just Hitachi.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

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