- Switch off and unplug the base immediately.ExpectedNo further heating; safe cool-down.
- Allow 15–30 minutes to cool completely.ExpectedThermal protection resets.
- Refill above MIN and start again.ExpectedNormal heating resumes.
An overheat shutoff on the Bosch TWK7203 usually means the safety system detected overheating (often from low water/dry boil or heavy limescale) and turned the kettle off to prevent damage.
- The kettle doesn’t behave as expected when you press Start or change temperature.
- The problem repeats until you change something (power, water level, seating, cleaning).
- Water level too low or the kettle was turned on empty (dry-boil protection).
- Heavy limescale build-up causing hot spots and overheating.
- Poor seating/contact leading to abnormal control behavior (less common).
- Internal thermostat/control fault (if it triggers under normal conditions).
- Descale the kettle thoroughly (scale is a common overheat trigger).ExpectedOverheat shutoffs become less likely.
- Confirm lid is fully closed and steam can vent normally.ExpectedNormal boil detection and shutoff behavior.
- If overheat shutoff triggers repeatedly with normal water level and after descaling, contact Bosch support/service.ExpectedService path initiated.
| Checkpoint | What you do | If it passes | If it fails |
|---|---|---|---|
| Power & seating | Try a known-good outlet and reseat kettle on base | Kettle powers normally | Try cleaning contacts / support |
| Water level | Fill above MIN and close lid | Heats as expected | Dry-boil/overheat protections may be triggering |
| Scale & cleanliness | Descale and clean contacts | Stable performance | Possible internal fault → support |
- Trying to use the kettle when it isn’t seated flat on the base.
- Ignoring minimum water level or using it right after transporting in extreme temperatures.
- Do not immerse the base or power connector in water.
- Do not open the kettle or base (electric shock risk).
- Do not use abrasive cleaners on the contact pins.
- Unplug the base before cleaning and let the kettle cool before handling.
- Hot water and steam can cause burns—open the lid carefully.
Contact Bosch support if the issue persists after the steps above, or if you notice burning smell, visible damage, or intermittent power to the base.
- The kettle repeatedly fails to heat even with correct water level and a known-good outlet.
- The base or plug gets unusually hot, sparks, or smells burnt.
- You see cracked plastic, loose contacts, or water ingress near the connector.
- Never run the kettle empty; keep water above MIN.
- Descale regularly to avoid hot spots.
- Keep the lid and steam outlet clean so boil detection works correctly.
Can overheating damage the kettle?
Repeated overheating can shorten component life. If it happens often, address water level and limescale first.
What’s the fastest safe fix?
Unplug, cool down fully, refill above MIN, and retry. Then descale if it repeats.
Answer the questions and jump to the recommended section.
Did the quick fix steps solve it?
Does it still fail after deeper checks?
- Bosch Home product page: TWK7203 kettle (TemperatureControl7 / KeepWarm)manufacturer_product_page · Retrieved: 2025-12-28
- Bosch Home support: TWK7203/01 documentation & manualsmanufacturer_support · Retrieved: 2025-12-28