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Skematics for Bosch HBL 446 AUC - Bosch Ovens

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

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SOURCE: Bosch HBL 645 oven door won't close all the way

I am afraid that the door hinges are non adjustable, and the only solution is to replace them as a pair.
There should be some kind of latch mechanism at the end of the hinge
where it is fastened to the door to compress the hinge to enable you to remove them.
Hope this helps.

Posted on Jan 04, 2010


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How to set the timer

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Jan 12, 2014 | Bosch HBL 442 / HBL 446 Electric Single...


Common heating faults with Bosch HBL 442 / HBL 446 single oven

For all Free appliance repair videos visit our VIDEO TUTORIALS 1, If the Bosch fan motor in the back of the oven is going round and the temperature light is on (normally little red light), but there is no heat then you will probably need a new oven element, these are generally very easy to fit and readily available from our website these can be tested with a electric meter.
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.
2, If your BOSCH fan oven is getting warm but takes a very long time to cook or is burning the food more on one side than the other, then you need to check if your oven fan motor is working you will see the blade turning fast if it is ok. if the element is heating but the fan motor is not blowing the heat into the oven then you need To replace the oven fan motor is a little more expensive and a bit more involved.
3. If you have the opposite problem ie: your oven is over heating and burning everything then you will need to replace your BOSCH oven thermostat
4, A quite common and easily overlooked answer is if your BOSCH oven is not working at all ie: no heat and no fan then the chances are that someone has put the oven timer into AUTO mode, simply put oven back to MANUAL mode and all should be working again.

on Jan 19, 2010 | Bosch HBL 442 / HBL 446 Electric Single...

1 Answer

Do i need to hard wire a single oven


Welcome to FixYa.

You don't HAVE to hard wire, you can install a regular oven plug and receptacle outlet, but this is the recommendation of Bosch.

**Before installing the oven have a qualified electrician verify that your home is provided with adequate electrical service and that the addition of the oven will not overload the branch circuit on which it is to be installed. A separate three-wire or four-wire single phase, 240 Volt, 60 Hz., or a 208 Volt, 60 Hz. branch circuit is required.**



I'm not sure how clear this will come out when I post it, so if it is not acceptable let me know. I can send you the complete installation guide "pdf" via email if you post an email address.

I'll watch for your reply, good luck. Thank you for choosing FixYa today for your inquiry.


Macmarkus :)

Jan 09, 2011 | Bosch HBL 442 / HBL 446 Electric Single...

1 Answer

Does not turn on


If your electric oven is taking too long to heat or just not heating up right, then check out this tip that will give more detail about your problem.

Oven Problems Electric Oven is Heating Slowly or Poorly



Dec 10, 2010 | Bosch HBL 442 / HBL 446 Electric Single...

1 Answer


You might be able to get it off with one of those Scott scrub pads. Worth a try.

Apr 05, 2010 | Bosch HBL 442 / HBL 446 Electric Single...

1 Answer

Just had delivered Boch HBM13B221B Double oven. There is no cable. How do I attach it to the electrics in the house

You need to wire it up with 6mm twin and earth cable.
You must connect it to a seperate 30amp double pole cooker box, and nothing else.
Do not onder any circumstances connect it to a 13 amp socket outlet,
Unless you have a good knowledge of electrics, then I would recommend you get a qualified electrician to wire it in for you.
Please rate my solution.

Jan 14, 2010 | Bosch HBL 442 / HBL 446 Electric Single...

1 Answer

Bosch hba34b520

Yes, it is o/k to have a single oven connected to a 13 amp power supply supplied with a 2.5mm cable.
A lot of single ovens already come with a 13 amp plug fitted, so you can plug it straight into a 13 amp socket.
If there is no covenient socket nearby, then you can wire the 2.5mm cable srtaight into the oven terminal block.
I must stress that this only applys to a single oven and not a double one.
Plz rate my solution.

Jan 13, 2009 | Bosch HBL 442 / HBL 446 Electric Single...

1 Answer

Installing oven wrap and back insulation

Normally all you need to do, is just simply wrap the new insulation round the outer oven compartment, and it holds itself in place, would not recommend useing adhesive, if you can't get it hold in place, then twist some thin wire round to hold it in position.
Plz rate my solution.

Jan 07, 2009 | Bosch HBL 442 / HBL 446 Electric Single...

2 Answers

Oven cleaning

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Jan 01, 2008 | Bosch HBL 442 / HBL 446 Electric Single...

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