Thermador Cooktop Broken Glass: Stop Using It and Arrange Safe Service

Use only checks that match the exact appliance or system and its official guide.

1. Check 1

   From a safe position with all controls off, look only at the visible surface and classify the damage as a possible fracture, a sharp broken edge, loose glass, or an uncertain line. Do not touch or press the glass and do not place cookware on it.

   Expected result: The glass is cracked or fractured, an edge is sharp or loose, fragments are present, or you cannot confidently distinguish a crack from a scratch.

   Next step: Stop using the cooktop and keep people away from the damaged area. Continue only with safe isolation and service arrangements.

   Stop if: Do not test the zone, press the crack, handle fragments, or sweep across the surface with bare hands.

   Why this matters

   Why: The surface must be treated as unsafe for operation; visual uncertainty is not a reason to heat the zone to find out.

2. Check 2

   If the area is dry and the electrical isolation point is safely reachable without contact with the cooktop, switch off the cooktop's fuse or circuit as directed by the installation. Otherwise leave the electrical equipment alone and move away from the hazard.

   Expected result: The circuit can be isolated from a dry safe position, or water, exposed wiring, heat, smoke, or another hazard makes the isolation point unsafe to reach.

   Next step: Use the isolation point only when it is safely accessible. If it is not, keep clear and contact qualified electrical or appliance help from a safe location.

   Stop if: Do not remove the cooktop, open a junction box, pull wiring, or touch the broken glass to reach a control.

   Why this matters

   Why: Isolation lowers electric-shock risk, but reaching through water or touching damaged components can create a greater hazard.

3. Check 3

   Secure the surrounding area without handling the damaged surface: keep cookware and people away, leave any loose fragments where they are if removing them would require contact, and note whether the crack reaches a control, edge, or heating zone. Read the complete model information only from a safe, already accessible label.

   Expected result: Fragments or a sharp edge are exposed, the damage is near controls or wiring, the model information is unreadable, or the label can be read without moving or opening anything.

   Next step: Photograph or describe the damage from a safe distance, provide the complete model information if available, and arrange qualified service. If sharp fragments are in a place people cannot avoid, keep the area isolated until professional help arrives.

   Stop if: Do not tape over the fracture, glue the glass, lift the cooktop, or order a surface assembly without model-confirmed service guidance.

   Why this matters

   Why: The damage pattern and exact model help the service provider plan a safe inspection, but neither authorizes owner disassembly or selects a replacement part.

4. Check 4

   Arrange qualified Thermador or appliance service and report when the damage occurred, whether the cooktop was hot, whether any zone or display was active, whether liquid or impact was involved, and whether the circuit was isolated. Keep the cooktop out of service until inspected.

   Expected result: The crack persists, the glass is missing or loose, a control or zone is affected, the circuit trips, or the cause and extent cannot be confirmed safely.

   Next step: Leave the cooktop isolated and let an authorized or otherwise qualified technician determine the safe repair path and the model-correct assembly.

   Stop if: Do not restore power merely to see whether the cooktop still heats and do not perform an owner part replacement.

   Why this matters

   Why: A glass fracture can involve structural and electrical hazards that cannot be cleared by a surface inspection or a replacement-glass guess.