The oven door on a Siemens range does not close properly, or heat escapes.

Safety first: Ensure the oven is cool before working on the door.

User actions:

• Inspect the door gasket around the oven opening for tears, hardening, or gaps. Replace if damaged.
• Check for obstructions preventing the door from closing fully.

Technician actions:

• Inspect and, if necessary, replace the door hinges and hinge receivers.
• Adjust door alignment according to Siemens service instructions.