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Lelit Combi /Anita tripping PCD PCD and pump struggling when hot

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  • sinkas
    replied
    So I ran it on a 15A circuit outside, didnt trip circuit, but pumped about 2/3 of a shot, then pressure gauge dropped suddenly to zero .
    pump can still pump to the water wand but wont pump thru the group head....
    could it be opv?

    Leave a comment:


  • sinkas
    replied
    Pics are of the inside of the machine, fair amount of mineralClick image for larger version

Name:	20220811_082706.jpg
Views:	101
Size:	159.9 KB
ID:	924319 buildup on the boiler intake

    Leave a comment:


  • sinkas
    replied
    Hi,
    we only have one outlet circuit, so its one the same RCD, we did have a RCD for hot water die a year or so ago, so could be that
    we do have a 15A circuit in the garage, will try that.
    I don't use the power switch, we turn it on at the power point, so the power switch is always "on" as its in a location that is to hard to access

    Leave a comment:


  • roosterben
    replied
    Couple of thoughts on what it could be;

    1) Faulty/overloaded power circuit which is tripping only when under load. The RCD breaker could actually be faulty and is tripping at lower than its rated amperage - have you tested it on another circuit & power outlet?
    2) Solenoid - which is causing a ground fault tripping leaking under heat/pressure
    3) Power switch - I have had machines with faulty power switches which caused intermittent faults

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  • sinkas
    replied
    It has not tripped while idle,
    I left it on fro an hour or so and it was fine,
    then brewed and it tripped

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  • sinkas
    replied
    Hi,
    cheers for the replies
    I happened to have a pump , as I bought it a while back ,
    so changed that over,
    (which seemed rather easy, was expecting a swearing fest)
    certainly pumps easier but still trips, under load about 20 seconds into the brew
    I need to run it with the cover off and see if there is any water leaking anywhere
    I have descaled and back flushed,
    the OPV seems to work fine when using a blind filter etc.
    the only corrosion was on to boiler inlet or outlet,
    ( bloody photos didnt work so I will take them again today,) but to me did seem like it would be a cause of this fault

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  • Jackster
    replied
    Hows it look under the covers? Water leaks or corrosion evident?

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  • Oddlight
    replied
    Tripping power means it's electrical. If you haven't already, then I'd thoroughly descale and backflush with espresso cleaner.

    Is the OPV blocked? I assume it's not leaking.

    If that doesn't fix then the pump is a possibility. Easy to replace if you can gain access and fairly cheap.

    Has it ever tripped with no pump running?


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  • Jackster
    replied
    Group head blocked with grinds above the screen?

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  • Lelit Combi /Anita tripping PCD PCD and pump struggling when hot

    Hi All I have a Lelit Combi, that is about 5 years old, used daily and pretty well serviced,
    it has recently started struggling to actually " pump" when the pump is switched on, but eventually gets going
    and works fine,
    it only even gets " stuck "if it been sitting at full temp for a while,
    ,
    always flows straight away when it cold to prime the system
    in last few weeks it occasionally trips the PCD for the circuit, when under load ( pumping to brew).
    I took it to local coffee machine service, however it didn't do any of the strange things while they had it.

    any ideas?
    should I change pump? it has a ULKA type vibratory pump

    Cheers for any ideas




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