Question about Bosch Kitchen Ranges

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I replaced the the convection heating element on a Bosch HBL 455 AUC electric oven. The power trips when I turn on the upper oven (where the repair was made). The lower oven clock and lights are working fine. I must have crossed the wires. The are : White thinner guage, Green heavier gauge and Blue double wire heavier gauge. What is the correct order?

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  • tdusky Oct 20, 2008

    Wires are fine. I need the correct order the wires are attached to the heating element. Heating element has 3 terminals Top and bottom connect to the heating elements and the middle is a ground.
    The wires are white with a black stripe (thinner gauge). Blue double wire and green single wire.
    What is the correct order they attach to the heating element?

  • tdusky Oct 20, 2008

    White & Black stripe on the top.
    Blue in the middle (ground)
    Green on the bottom.

  • tdusky Oct 21, 2008

    I gave up on waiting for your advice. I made a list of the 9 possible combinations and started going threw them. My 4th try was the one, with white on the top, green in the middle and blue on the bottom. The oven would just trip off when I turned on the oven. I worked with the power off of course.

  • tdusky Oct 22, 2008

    I gave up waiting for an answer so I went forward with trial and error. I got it right on my 4th attempt. White on top, green in the middle(ground), and blue on the bottom. The problem now is the thermostat must have been damaged as the oven will keep heating up and not stay at the temperature set.

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After you have connected the wires in the correct order, now check the thermostat for continuity and should cutoff when you set it to a lower temp. if it will not cut off, then you need to replace the thermostat.

tnx 4 using fixya,

sorry for the delay in response. some of the experts are on a different time zone with you.

drcool

Posted on Oct 22, 2008

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Dont risk u call service eletrician

Posted on Oct 20, 2008

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Here is the order of connection

white thinner gauge connect to the ground

blue double wire connect to the Top of heating element

green single wire connect to the Bottom of heating element .

You try this connection at your own risk .

Precaution: Better call a professional to do the connection as it is risky .

Posted on Oct 20, 2008

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How do you have them wires hooked up?
green is usually the ground on the metal of the device

Posted on Oct 20, 2008

  • 5 more comments 
  • jason Oct 20, 2008

    does the element light up?

  • jason Oct 20, 2008

    do you have a volt meter?

  • jason Oct 20, 2008

    disconnect the element , and check to see where the AC power is comming from.

    it hard to diagnose a problem we cannot see , so we need more info

  • jason Oct 20, 2008

    green in the middle , the other two's order don't matter because its ac

  • jason Oct 20, 2008

    did you figure out those three wires?

  • jason Oct 20, 2008

    whats the model # ? so I can get the wiring diagram for it

  • jason Oct 20, 2008

    does it require 120v or 2 x 120v?

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Sounds like a short in one of the wires has a short in it where it was replaced. That would explain the power tripping. Search for any rips in the wire or where the wiring might come in contact with a sharp piece of metal.

Posted on Oct 20, 2008

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To gain access to the BOSCH element you will have to remove the back plate from inside the oven. Once removed you will see the fan and element, if you look closely at the element you will probably see a small hole burnt in it where it has blown. Sometimes however there is no evidence of a fault but the element is open circuit ie: broken inside the element casing, either way it will need replacing. Some elements will are fixed from inside the oven and some are held in place by nuts from the rear of the machine.
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