Results 1 to 11 of 11
  1. #1
    Join Date
    Dec 2005
    Location
    Cheshire
    Age
    39
    Posts
    264
    Rep Power
    21

    Daikin lift pump



    Hi,

    Just powered up a new FFQ60B and after 10 seconds or so after turning on isolator the familiar sound of the lift pump was constantly coming from the unit, with controller off.
    Switched on at controller (brc152d) no fault showed, ran on fan only, high and low speeds and swing worked fine, lift pump still running.
    Disconnected lift pump from pcb (X25A) switched back on fan only, ran fine and no noise from pump.
    I have left the indoor isolator off but outdoor is powered up to warm crankcase before running when I go back friday to commission.

    Just wondering if anyone has had this before on an FFQ, I am guesing the float switch could be stuck or I have a faulty lift pump? Is it fairly easy to get at these?

    Cheers



  2. #2
    Join Date
    May 2006
    Location
    aberdeen
    Posts
    125
    Rep Power
    18

    Smile Re: Daikin lift pump

    Hi Slim, never had that problem with that unit,but the float and the pump arent to easy to get to, total strip down is pritty much whats needed, at least it wont be full of water to drip over you and the floor,..

  3. #3
    Join Date
    Dec 2005
    Location
    Cheshire
    Age
    39
    Posts
    264
    Rep Power
    21

    Re: Daikin lift pump

    Quote Originally Posted by stuartwking View Post
    Hi Slim, never had that problem with that unit,but the float and the pump arent to easy to get to, total strip down is pritty much whats needed, at least it wont be full of water to drip over you and the floor,..
    Yea just found the disassembly guide and it is drain pan removal to get to it.
    Although looking at the piping side of the cassette (from access door in ceiling void) it looks as if there is a removable panel fixed with self tappers to to get at the pump, or is that just how the casing is held together, as normally they are spot welded??

    Cheers

  4. #4
    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
    Rep Power
    60

    Re: Daikin lift pump

    I may be wrong but after a quick look at the pdf manual I think that things aren't that bad. I have stripped out this type before and the drain pan should stay in.

    Switch off, remove the fan/air inlet cover and then remove the fan blade.

    In the corner, where the pump is, there is a plate held in with two or four screws. Take that off and the pump is behind.

    You might find the pump holding screws a bit fiddly to get at but not too bad.

    The float switch is also accessible.

    Good luck with it.

    Just a thought, how long does the pump keep running for? They can start up when the unit is first started so maybe it is waiting for a 'time-out'.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  5. #5
    Join Date
    Dec 2005
    Location
    Cheshire
    Age
    39
    Posts
    264
    Rep Power
    21

    Re: Daikin lift pump

    Thanks for that info Brian.
    The pump was only powered for about 2 mins then I first cut the power as I have never had this with any cassette before.
    How long ae you talking for this time-out? It will be worth trying first in the morning.

  6. #6
    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
    Rep Power
    60

    Re: Daikin lift pump

    Quote Originally Posted by Slim R410a View Post
    Thanks for that info Brian.
    The pump was only powered for about 2 mins then I first cut the power as I have never had this with any cassette before.
    How long ae you talking for this time-out? It will be worth trying first in the morning.
    Just had a look in the Sky Air manual and it talks about a 10 minute operation of the pump. It can be in one hit or may be in two 5 minutes shots.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  7. #7
    Join Date
    Dec 2005
    Location
    Cheshire
    Age
    39
    Posts
    264
    Rep Power
    21

    Re: Daikin lift pump

    Powered back up today and the pump run for 9 1/2 minutes then cut out. Happy Days

  8. #8
    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
    Rep Power
    60

    Re: Daikin lift pump

    Glad to hear that all is well, thanks for the update.
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

  9. #9
    Join Date
    Oct 2007
    Location
    manchester
    Age
    50
    Posts
    5,707
    Rep Power
    45

    Re: Daikin lift pump

    the float switch only operates on high limit causing an a3 fault.the pump runs continuously on cooling mode and for 3 minutes after cooling mode

  10. #10
    Join Date
    Mar 2007
    Location
    manchester
    Age
    17
    Posts
    63
    Rep Power
    19

    Re: Daikin lift pump

    i really hate changin this type of pump- aaagghhhh

  11. #11
    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
    Rep Power
    60

    Re: Daikin lift pump

    You mean that wet feeling running down your sleeve ?
    Brian - Newton Abbot, Devon, UK
    Retired March 2015

Similar Threads

  1. liquid ammonia pump calvitation
    By Kathleen in forum Trouble Shooting
    Replies: 23
    Last Post: 20-05-2011, 02:18 AM
  2. Daikin not working... many problems
    By stankovicv in forum Air Conditioning
    Replies: 26
    Last Post: 11-12-2010, 10:01 AM
  3. Help with condensor pump
    By Bakerbj in forum Air Conditioning
    Replies: 23
    Last Post: 14-06-2009, 12:39 AM
  4. frostles heat pump
    By Lc_shi in forum New Technologies
    Replies: 27
    Last Post: 31-03-2008, 07:53 AM
  5. Domestic VRF heat pump?
    By electronicsuk in forum Heat Pumps
    Replies: 8
    Last Post: 30-10-2007, 08:53 AM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •