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  1. #21
    Junior Member Rank = Fry Olestokie's Avatar
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    Same problem. Removed the motor, tried the drum but it seems to be the same as its always been.
    Themotor runs when not connected to the drum and due to the internal gears g it's still powerful.
    So stripdown in order. Nicely made but !!!
    Outer bearing and case cover off, seals look OK but there about 100 ml of water inside.
    The internal motor / gearbox is corroded, what state inside ?
    The drive unit looks like a 24v 6a windscreen wiper motor / gear, however from the outer box label, Oase are running this at 12v 3a, so 1/4 power therefore will be low torque.
    Output shaft seems to have a wet greased seal, all the grease is dry, probable failure point. Hate to imagine what state the motor internal workings are in.
    The part number of the internal kit is not longer in production, an inspected unit costs £90, but with the modifications etc I don't have the needed kit to undertake so £450 replacement on order.
    Would like to post pictures but cannot work out how to do it.

  2. #22
    Extreme Koi Member Rank = Tosai Deanosbeano's Avatar
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    For future reference(for the ones who are not still under warranty)if you get to the stage where it's stripped down & buy the unit(NIDEC 404.854).......Then to get the drive shaft extension off the old unit there's 2 pins on the bottom which you need to knock through.After these have been knocked out the drive shaft extension simply falls off.When you put it onto the new unit you need to drill 2 holes to put the pins back in.Cost me about £77 and an hours work compared to £450 for a new unit.

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  4. #23
    Junior Member Rank = Fry Olestokie's Avatar
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    Attempted this, but could not locate the internal unit. It's out of manufacture.

  5. #24
    I had this problem also for a few weeks. After investigation I found out that the two small gears at the lower part, where the drum is positioned, need to be replaced. In my case these gears have a cilinder which is made of plastic, while the new cilinders are made of stainless steel.

  6. #25
    Junior Member Rank = Fry Olestokie's Avatar
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    New motor worked. However now, having found a supplier of tested units, I'm going to fix the old one. Advice please, what grease to use on the shaft seal. For anyone with the problem here's the supplier, https://www.radwell.co.uk/en-GB/Buy/...20CORP/404.854 , although local, I'm not connected with them in any way. Will post pictures when doing the work.

  7. #26
    Extreme Koi Member Rank = Gosai Designer1's Avatar
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    Ok - So update on my situation...
    After the fist time, a few off / on cycles - error cleared, a few manual rotations of the drum - everything worked - great (i thought).

    Error 44 again - so decided to investigate. Firstly I removed the motor and left outside of the unit to avoid Err 11 - everything worked fine.
    So then stripped out the drum unit - fully cleaned everything / check for any obstructions. While i was there - greased the drum where required and reassembled.
    Worked fine all afternoon.

    First thing this morning - Error 44
    Will strip down the motor today if I get time to investigate further - Joy
    (I wonder if Oase read these threads)!!!!

    Any pictures or advice from others who have been here - would be great before i embark on sourcing installing new motor please - TIA
    Its a hole in the ground where I throw my money!

  8. #27
    Extreme Koi Member Rank = Tosai Deanosbeano's Avatar
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    Quote Originally Posted by Designer1 View Post
    Ok - So update on my situation...
    After the fist time, a few off / on cycles - error cleared, a few manual rotations of the drum - everything worked - great (i thought).

    Error 44 again - so decided to investigate. Firstly I removed the motor and left outside of the unit to avoid Err 11 - everything worked fine.
    So then stripped out the drum unit - fully cleaned everything / check for any obstructions. While i was there - greased the drum where required and reassembled.
    Worked fine all afternoon.

    First thing this morning - Error 44
    Will strip down the motor today if I get time to investigate further - Joy
    (I wonder if Oase read these threads)!!!!

    Any pictures or advice from others who have been here - would be great before i embark on sourcing installing new motor please - TIA
    Mine was exactly the same as yours.It ran fine out of the unit and then Error 44 on load every time it went back into the drum.Seem's as though the unit or gearing had gone weaker.Tried greasing the drum seals like you but could not solve it.You can buy a new or refurbed units as posted above from 'Radwells'.Theres also a German website called 'Smolka' selling new units for £60 ish.I got one from Radwells & this new unit worked for me and was quite easy to do once i sussed out how to get the shaft off(as posted above).Cost me £77 as ebay had a discount on at the time.
    Hope you get it sorted.

  9. #28
    Junior Member Rank = Fry Olestokie's Avatar
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    Quote Originally Posted by Deanosbeano View Post
    Mine was exactly the same as yours.It ran fine out of the unit and then Error 44 on load every time it went back into the drum.
    I dismantled the internal unit, water inside. I think it's taken out the motor brush springs, so will run with no load but loaded.

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  11. #29
    Extreme Koi Member Rank = Gosai Designer1's Avatar
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    Thanks for the advice and comments guys...greatly appreciated.

    So - stripped motor down, a small amount of water in the black casing - Will use waterproof grease when re-assembling
    Fully stripped the motor out - tapped out the two locating/locking pins which hold the extension piece.

    How easy / what's the best way of drilling the new unit which ive purchased from Radwells 103 quid (cheers Deanosbeano)
    Is the motor arm soft metal (here's hoping)!

    Ordering a vice now for this - still cheaper than 450 Oase part.
    Its a hole in the ground where I throw my money!

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  13. #30
    Extreme Koi Member Rank = Gosai Designer1's Avatar
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    Update -

    New motor arrived, i carefully drilled the spindle after some words of advice from Deanosbeano (cheers Dean).
    Recommend: A Vice and new metal No3 drill bits - I used DeWalt and they were excellent.

    Then rebuilt the unit - using plumbers grease on the rubber gaskets and on the spindle, where water ingress may happen.
    Although the spindle does not sit under water but with the spray bar being so close - that's how it probably gets in.
    I may look at protecting this area with a bit of old pond liner to prevent this in future?

    All seems fine so far - drum now works ok

    total spent = 140 GBP tops

    Thanks to all who helped/commented -
    Its a hole in the ground where I throw my money!

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