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APS error 23:10, where's the leak?

Discussion in 'Hewlett Packard' started by kanini, Jul 7, 2020.

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  1. kanini

    kanini Member

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    Jul 13, 2012
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    I have a HP latex 330 that is giving me 23:10 APS error. The pumps runs more than they should (buzzing longer and more often) but I cannot find any leaks on the air or ink system, no pinched lines and everything seems fine inside. I am thinking of replacing the APS pumps and those lines first, but is there any other common culprit you should look at before replacing too many parts?

    Of course tried all the standard remedies as pulling all cartridges etc.

    Super many thanks in advance, we are on a remote location so the techs are few and far between, that's why we are solving issues ourselves on the used machines. =)
     

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  2. greysquirrel

    greysquirrel Active Member

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    Aug 13, 2015
    West Berlin, NJ
    make sure all fittings are tight, check up by the carriage assy. make sure no leaks where printheads connect to ink line.
     
  3. kanini

    kanini Member

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    Thanks greysquirrel, I'll have another round with the tubes and see what I can find. I've not checked the end of the clear hose that goes along the backside of the printer, does that one go up to the carriage maybe?
     
  4. kanini

    kanini Member

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    So, checked all air connectors once more, also on the other side of machine. Cut off the tubes one some of the fittings to get a fresh and tight seal but no improvement - throws 23:10 at startup and pumps running long and often. I get the machine up to idle and timed the time between the pumps running which was about 58 seconds. I then by hand pinched the black thin tube coming from the pumps when the pumps had switched off and now the time between pumping increased to 4 minutes. When I let go it is back to 58 seconds. Tried this a couple of times with the same result. Seems like the air is leaking backwards through worn pumps, is that possible? I took a long shot and ordered a new APS assembly (~$200) with pumps and some tubing so I'm going to replace the pumps (if I get them out) and see if there's an improvement - fingers crossed! I will update. If in the meantime anyone has done this replacement (part of the SMK kit?) please let me know if you have any tips or if you have any other ideas.
     
  5. kanini

    kanini Member

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    So an update to this, I got new APS pumps from the US and it was a very easy swap if you are somewhat confident with ripping off the covers and using a screwdriver. Took about 30-40 minutes since I already had the left cover off. Just make sure the hoses and connectors gets right. The ISS station pops out so you don't remove anything on that or remove everything the service manual says.

    Now the printer works flawlessly again and the new pumps runs very short periods, about 2-5 seconds tops. And they pause for a long time as well so the leak was inside the pumps themselves. The new pumps has rubber fittings to the chassie so they are also much quieter as an added bonus.

    If you have the same issues you have great help of a service manual to replace these and also reset the life counters.
     
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