00422703 Oven switch

Oven function selector switch

This oven function selector switch is an original spare part with code 00422703. It is intended for selected ovens, built-in ovens and cookers from Bosch, Siemens and other compatible appliances of the BSH group. The switch is used to select individual oven functions, such as top and bottom heating, grill, convection (hot-air) mode, lighting or other modes depending on the design of the specific model.

What is it for and when is replacement necessary?

The function selector is an important control component of the oven. By turning the control, contacts are mechanically or electrically switched to determine which cooking mode should be active. A properly functioning selector is essential for the safe and reliable control of heating elements, the fan, the grill and other appliance functions.

You will usually need to replace this part in the following situations:

• The oven does not respond to program selection or some cooking modes do not work.
• The control knob is stiff, skips positions, does not stay in place, or turns without proper engagement.
• Switching causes outages, sparking, a burning smell or irregular oven operation.
• Only some functions operate, for example the oven heats only in certain switch positions.
• The original switch has scorched contacts, damaged terminals, a cracked housing or a loose shaft.
• A service inspection confirmed a fault in the function selector switch, the control components or the associated wiring.

Features and benefits

This original Bosch / Siemens spare part is manufactured to match the manufacturer's design of compatible ovens and cookers. As a result:

• It restores correct selection of the oven functions.
• It is suitable as a direct replacement for the original faulty, damaged or worn switch.
• For compatible models it allows connection to the original wiring and control panel without structural modifications.
• It helps restore correct switching of heating elements, fan, grill or lighting according to the specific model.
• It supports safe and precise control of cooking modes.
• The original design is adapted to the particular wiring and selector positions of selected Bosch / Siemens appliances.

Design and application

Part 00422703 is listed in spare parts catalogs as oven function switch, oven switch, oven function selector, rotary switch, baking program switch, oven control switch, oven switch, oven selector switch, function selector switch, rotary switch, Wahlschalter, Funktionswahlschalter, Backofenschalter or Drehschalter. The part may also appear under the shortened designation 422703. The switch is intended for selected ovens and cookers according to the exact model designation of the appliance.

Related and replacement parts

When the function selector is faulty, we recommend also checking the condition of the control knob, shaft, wiring harness, connectors, terminal block, thermostat, temperature safety limiter, heating elements, fan, oven lighting and control electronics according to the design of the specific model. If the problem is caused by a faulty heating element, burnt connector, damaged control knob, broken wiring or a thermostat fault, replacing the selector switch alone may not fully resolve the issue.

Recommendations for use and maintenance

Use the selector only in the normal way and do not operate it with excessive force. Keep the control panel clean and dry to prevent moisture, grease or cleaning residues from entering the switch area. If the control becomes stiff, starts skipping or a burning smell appears when switching, stop using the oven until the actual cause of the fault is identified.

Recommendations for installation

We recommend entrusting the replacement of the function selector to a qualified person or service technician. Before installation, the oven or cooker must be disconnected from the mains. The replacement requires removing the control panel, labelling or documenting the original wiring, checking the condition of connectors and removing any signs of overheating. Connect the new selector exactly according to the original wiring and the construction of the specific model. After installation perform a test check of all selector positions and verify that the individual oven functions switch correctly.

Warning before ordering

Before ordering please verify the compatibility of this function selector switch with the specific model of your oven, built-in oven or cooker. For Bosch, Siemens and other compatible brands we recommend checking by the model designation E-Nr., because the number of positions, shaft shape, contact wiring, mounting, connection to the control knob and the electrical diagram may differ between models.

Available goods are usually delivered by the next business day. Goods available from the supplier are dispatched according to current availability. You will see the exact delivery date in the cart.

You can return unused goods within the statutory period. Before returning an item, please contact us so we can help verify the correct procedure and any part compatibility.