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Installation guide - bosch hbn131250b

Just bought one of these bosch ovens. I cannot remove the screws of the unit at the back to allow me to attach the electric wires to the appliance. Is there a special screwdriver that you need to remove the screws. The shape is different to the normal screws?

I have three wires red, black and yellow/green that need to be attached to the appliance. I do not have a document or picture that tells me which wire goes into which number at the back (once I manage to open the unit at the back). Can you please direct?


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Re: installation guide - bosch hbn131250b

1. The screws seem to need a small hex screwdriver, but I managed to get my normal electrical screwdriver to fit - they are not too tight.
2. The wiring is straightforward - there is an earth position with no wire from the oven attached, marked with the standard earth sign, that should connect to your yellow/green wire. The other two connectors have either a blue (neutral) or a brown (live) wire attached to them - they should connect to your black (neutral in old money) or red (live) wires

Posted on Jun 20, 2009

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My apologies - I submitted this last night but upon checking for any reply from you, I noticed it had not been posted on the page. I now have to write the entire message again!

Obtaining the part is easy, however fitting it is going to be somewhat more difficult as it's a double oven - meaning it's both higher and heavier. Access for replacing the switch and removing the front panel is from the top so the oven will need to be pulled out from the cabinet or removed. However, the double glass doors make the oven rather front-heavy so it's inclined to topple forward!

This is an expensive appliance and I recommend getting this job done professionally. Should you decide to do the job yourself, you do so at your own risk and you should follow all of the saftey instuctions carefully.

The best - and usually cheapest - place to get any genuine Bosch part is directly from Bosch. They normally deliver in 2-3 working days. The Bosch part number you need is 602732: £19.63 inc. postage

Click on "Add to Basket" and then "Finish and pay >"

Fitting instructions:

I prefer to do this job with the oven fully removed from the housing but it's probably hardwired to the switch/breaker and needs two people to lift it out. Not removing it also means you have to work at a much greater height, so I recommend complete removal, if possible. The job can be done with the oven only half pulled forward from the cabinet, but the front of the oven needs to be fully supported after pulling it forward or the weight of the doors can (and will) cause it to topple forward.
1. Power off at the breaker/main switch. If you are going to completely remove the oven, you will need to power off at the main fuse box and then remove the oven power cable from the switch.

. Remove the screws which secure the oven to cabinet - these are at the sides and are only visible with the doors open

. Pull the oven control knob off of the fascia panel.

. Remove the oven completely or pull it forward half-way (see above)

. Remove the front half of the top panel of the oven. I think it just unclips on these, but there may be a couple of screws to remove at the side first. You will now have access to the switch area.

. Make a detailed note of how all the wires are attached to the main oven switch. It's a good idea to take a digital photo for reference. Some of the wires are the same colours so make sure you don't get them mixed up. Also, some of the terminals on the switch are double, so it's best to draw a diagram and give all the terminals numbers and record which wire goes to each one.

. Detach all,the wires from the oven selector switch. There is another white "box" attached to the back of the switch, but you don't need to disconnect the wires from this. This box is the thermostat which is attached to the temperature probe in the oven with a long wire.

. Remove the screws securing the selector switch to the oven and detach the switch. Make note of how all the parts - switch / bracket / support, etc - fit together. Another digital photo may be useful here.

. Unscrew and pull the thermostat out from the back of the selector switch. You should now be able to remove the switch from the oven.

. Assemble the new selector switch with the bracket, support, thermostat, etc and secure it to the oven.

. Refit everything else in reverse order of the above.
This may be a little bit more complicated than you were expecting. If you don't feel confident to do the work yourself, then please seek professional help. If you do decide to DIY and you let me know when you are planning to do it, I can try to be online to assist you if you get stuck anywhere.

Merry Christmas!


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jQuery('.intro .thumbnail').each(function(i,e){ jQuery(e).find('img').one('error',function(){ jQuery(e).remove(); }); }); Difficulty: Moderate Instructions Things You'll Need:
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  2. Step 2 Remove the door from the oven by disengaging the locking mechanism and then pull the oven door out. You may need to release a catch on the door or remove a pin from a hole in the hinge.
  3. Step 3 Place the door on a flat surface such as a table or the floor.
  4. Step 4 Remove the screws that hold the sections of the door together to access the hinges.
  5. Step 5 Remove the hinges from the door. The hinges may be attached to the door with screws or they may be held in place when the door sections are tightened or secured.
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  7. Step 7 Place the oven door back into place by sliding it on the same way that it came off.


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