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Bosch HBM13B251B/47 oven not heating correctly uneven cooking

by / Monday, 28 December 2020 / Published in

Why does my fan oven cook uneven, one side of cakes are cooked before the other.? If you open door to turn it round the cake collapses and is spoilt !

Stephen Tucker

Paul answers

I will try and help with this problem Bosch HBM13B251B 47 double oven 

 
as there is only one element in the fan oven this will normally be a problem with the fan motor not Distributing the air around the cooker correctly, I suggest you a fan motor is not running at the correct speed you most probably will need to replace it. I have put the exploded diagram below to show you where the parts are use the part number in the list below to find the correct motor for your cooker also I have added a couple of videos to assist you in the repair

 

 

For your future reference I’ve included some Common faults with these Bosch HBM13B251B/47 Double Oven cookers to assist you in the future or anyone else reading this.

  • The oven will not turn on
    The first thing you need to check is that the oven timer is not on auto if it is turn it on to manual.
  • No Heat in Oven
    If the fan is running and the thermostat light comes on but you get no heat (or just the thermostat light on in non-fan ovens and cookers) then the probability is that the fan element or oven elements have failed.
  • Electricity trips (Rcd) when I turn the oven on or grill
    This is normally an element that has gone to earth, This is a well-known fault with electric ovens, the insulation breaks down in the elements and trips the RCD , best way is to stick a meter on each element and check that they have not got earth leaks on them. But this can also be a wiring fault.
  • The grill element doesn't work
    This would usually indicate that the grill element is faulty. Check these: Grill element, Oven changeover switch, Overheat thermostat, Main oven thermostat, if used to regulate the grill temperature.
  • The oven fan is not working or spinning correctly (slow) or is noisy
    The fan motor may need to be replaced see video on this also the cooling fan motor can cause same problems.
  • The oven overheats and burns everything
    Normally this is a simple thermostat failure which would manifest itself as this symptom.
  • The oven or cooker cuts out after it's been on for a while
    This is an overheating problem which can be caused by the fan motor or main oven thermostat or a faulty safety thermostat that will be causing the problem. It can also be caused by a failure of the cooling fan, where fitted, but usually these go noisy before failing, Safety thermostats are used to prevent the oven or cooker overheating and will shut the oven down.

 

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If you need any further assistance please feel free to contact me​. all the best Paul​.

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Paul Charmbury
Appliances Engineer
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Video to help you with your Bosch HBM13B251B 47 double oven

Match your part for Bosch HBM13B251B 47 double oven and the use reference number in list below and click on the link to your part

Reference Part Number Description
0101 00681672 Cover
0103 00474825 Panel side
0106 00472565 Case-bottom
0107 00474826 Case-rear part
0108 00423826 Sleeve
0109 00492732 Cover
0110 00155119 Terminal
0112 00709023 Rail
0113 00709023 Rail
0116 00068492 Bushing
0117 00740265 Strip
0118 00740268 Strip
0119 00603893 Plug
0198 00615056 Screw
0199 00552829 Part not included in this appliance
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

Reference Part Number Description
0201 00675571 Panel-facia
0202 00750002 Clock
0205 00622216 Switch-selector
0206 00499005 Regulator-temperature
0207 00647471 Display
0208 00622217 Switch-selector
0209 00499007 Regulator-temperature
0212 00616568 LED-announcement
0215 00611403 Lens
0218 00644776 Ring
0221 00612436 Knob-oven
0233 00426103 Support
0236 00420601 Coupling
0249 00607329 Limiter-temperature
0250 00030152 Resistor
0251 00030151 Fixture
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

Reference Part Number Description
0301 00688781 Door-outer
0303 00688500 Intermediate panel
0304 00685401 Inner glass
0307 00667871 Handle-door
0308 00611075 Base
0309 00606677 Sealing
0314 00552830 Unavailable as spare part
0316 00741663 Ventilation panel
0319 00648021 Door hinge
0320 00648021 Door hinge
0323 00743024 Rail
0324 00743023 Rail
0328 00420735 Spacer
0345 00626582 Holder
0346 00626581 Holder
0347 10012725 Holder
0348 10012723 Holder
0390 00627106 Screw
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

Reference Part Number Description
0407 00443526 Heater-ring
0410 00629694 Lamp
0411 00057874 Lamp
0412 00647309 Glass light cover
0415 00492731 Bearing
0420 00754066 Seal-door
0423 00490772 Holder
0490 00613634 Bulb cover removal tool
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

Reference Part Number Description
0501 00651461 circulation fan, SR 220-240V
0502 00700915 Holder
0503 00629130 Limiter-temperature
0504 00742402 Fan motor
0505 00669670 Hot-air guide plate
0506 00420760 Filtering jug
0507 00443290 Duct
0510 00474828 Sheet
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

Reference Part Number Description
0601 00688782 Door-outer
0603 00688803 Glass panel
0604 00688810 Door-inner
0607 00667871 Handle-door
0608 00611075 Base
0609 00606677 Sealing
0610 00492627 Sealing
0611 00492627 Sealing
0614 00552830 Unavailable as spare part
0616 00741663 Ventilation panel
0619 00496174 Door hinge
0620 00496174 Door hinge
0623 00743031 Rail
0624 00743030 Rail
0628 00420735 Spacer
0645 00626582 Holder
0646 00626581 Holder
0647 00627196 Holder
0648 00627196 Holder
0690 00627106 Screw
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

Reference Part Number Description
0701 00791715 Heater-top
0703 00447451 Heater-bottom
0704 00438151 Sheet
0706 00650242 Light socket
0707 00032196 Lamp
0708 00155333 Glass light cover
0709 00614061 Switch
0712 00659556 Seal-door
0714 00490772 Holder
0715 00492731 Bearing
0790 00621743 Auxiliary tool
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

Reference Part Number Description
0804 00626619 Limiter-temperature
0805 00552830 Unavailable as spare part
0806 00613950 Filtering jug
0807 00552830 Unavailable as spare part
0808 00443453 Liner-catalytic
0818 00654131 Fan motor
0821 00654131 Fan motor
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

Reference Part Number Description
0901 00472738 Holder
0903 00626210 Bushing
0906 00742276 Grid
0912 00770160 Liner-catalytic
0918 00574876 Multi-use wire shelf
0919 00740766 Wire Shelf Insert for universal pans
0922 00574912 Universal pan
8701 00613634 Bulb cover removal tool
8702 00621743 Auxiliary tool

full list of spare parts for this model below Bosch HBM13B251B 47 double oven

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