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Amica - The oven triggers a differential fuse

jac0205 36543 17
This content has been translated flag-pl » flag-en View the original version here.
  • #1
    jac0205
    Level 13  
    After turning on the Amica oven (built-in), after about an hour of operation, it trips the differential fuse - 25A with the TEST button. The oven and the installation are less than 4 years old.
    It also happens after disconnecting the plugs from the sockets of other devices (dishwasher, fridge, TV, computer, washing machine, light). The fuse is not too warm, and you do not smell any suspicious odors by the oven. Was it a fuse?
  • Helpful post
    #2
    Trull
    Level 28  
    A breakdown on one of the heaters to ground, I would bet on the bottom or hot-air heater. Measure against ground on a 20M? meter measurement.
  • #3
    jac0205
    Level 13  
    Well, it's rather a hot-air heater, because basically only this is used.
  • #4
    jac0205
    Level 13  
    Heater replaced. We'll see if it helped ...
  • #5
    jac0205
    Level 13  
    And linden.
    The same thing ... Is it possible to check the disassembled (allegedly damaged) heater if it has any punctures? If I have to replace the remaining heaters, it is probably better to buy a new oven. The replacement cost me PLN 130, I wanted to do it myself, but the rear panel resisted and there was a fear of breaking a cable.
  • #6
    User removed account
    Level 1  
  • #7
    movzx
    Level 39  
    skryn wrote:
    Of course, you have to call a decent electrician for the installation, not one from the "round-up" ...
    By the way, there is a chance that a decent electrician will be able to perform basic measurements and make sure whether the oven or the switch itself is damaged.
  • #8
    LiutenetMaria
    Level 28  
    Give the designation of this "fuse".
  • #9
    jac0205
    Level 13  
    Written from the fuse:

    EFI-4
    25A I AN 30mA
    AT N ~ 400V
    3000 A.
    22.5 kA2s
    4 pol. IP40
  • #10
    movzx
    Level 39  
    jac0205 wrote:
    25A I ?n 30mA
    So we go back to the starting point - you have to check whether the oven or the switch is damaged (by the way is not is a fuse).
  • #11
    User removed account
    Level 1  
  • #12
    sebastian.rak
    Level 16  
    (Well, now I will probably expose myself to the admin)

    secretary
    First. Why would you want to replace an item that is not showing signs of damage so far - this is it residual current device and so far it seems to fulfill its function in the installation.
    Secondly. Why "From the oven, wara ..." if there is a problem only during its operation:
    "This also happens after disconnecting the plugs from the sockets of the rest of the devices (dishwasher, fridge, TV, computer, washing machine, light)"

    jac0205
    First, it must be clearly stated whether the oven or the RCD is damaged.
    If you only have a problem with the oven working, the problem will be with it.
    30mA is enough for the RCD to trip.
    Puncture does not necessarily occur on the heaters. The heater power cables may be damaged, as well as other elements that are live while the oven is in operation.
    If you do not have a meter to measure insulation resistance, look for a good electrician who will have one. Measurement with an ordinary ohmmeter or multimeter may not be sufficient to show breakdown.
  • Helpful post
    #13
    Topolski Mirosław
    Moderator of Electrical engineering
    jac0205 wrote:
    And linden.
    The same thing ... Is it possible to check the disassembled (allegedly damaged) heater if it has any punctures? If I have to replace the remaining heaters, it is probably better to buy a new oven. The replacement cost me PLN 130, I wanted to do it myself, but the rear panel resisted and there was a fear of breaking a cable.

    You can see that you have excess money. You need to know what you are doing and why, so you can start with the oven and finish the replacement of the entire installation. Wouldn't it be cheaper to call an electrician? - because with the universal meter you could check the heater (if you can) and not replace it.
    This advice is dictated by our concern for you, because from what you have done, I do not advise you to check anything with a meter, let alone under voltage, because you have no idea about it.
  • #14
    User removed account
    Level 1  
  • #15
    jac0205
    Level 13  
    buddy Topolski Mirosław: the equipment has been returned to the service.
    Right, I don't know anything about it, so that's why I entrusted it to a professional. However, as it turned out, he was rather a pseudo-specialist. I described the problem to him and he said it was 100% heater and he replaced it, but the problem did not disappear. I go to this establishment again after Christmas.
  • #16
    jac0205
    Level 13  
    The problem seems to be resolved.
    The power magician came, measured, examined, looked and replaced the upper heater. Oven checked for several hours. Nothing happened.
  • #17
    Topolski Mirosław
    Moderator of Electrical engineering
    jac0205 wrote:
    buddy Topolski Mirosław: the equipment has been returned to the service.
    Right, I don't know anything about it, so that's why I entrusted it to a professional. However, as it turned out, he was rather a pseudo-specialist. I described the problem to him and he said it was 100% heater and he replaced it, but the problem did not disappear. I go to this establishment again after Christmas.

    You do not write anything about your visit to this plant. Was it an authorized home appliance service or an electromechanical plant?
    PS
    Electric magician who is this some shaman from the African bush? (this is a technical forum)
  • #18
    jac0205
    Level 13  
    Replacing the top heater solved the problem.