0290024 Genuine Gas Cooktop Thermocouple 510mm for Blanco Cooktops, Blanco Flame Failure Thermocouple Replacement

Blanco gas cooktops rely on thermocouples like this genuine 510mm part, 0290024, for flame failure protection. Its tip sits beside the burner flame and keeps the gas valve open only while the flame is alight. No models are on file, so check the length, tip and end fitting against the old thermocouple before ordering, or send your cooktop model through our parts enquiry form.

Gas burner won't stay lit on a Blanco cooktop?

When a burner is lit, heat from the flame makes the thermocouple produce a small current that holds a magnet in the gas valve open. Take the flame away and the current stops, so the valve closes and unburnt gas can't keep flowing. A worn thermocouple can't hold the valve, so the burner lights while you hold the knob in and goes out once you let go. Before replacing it, clean the tip, check it sits in the flame, and make sure the burner cap is seated correctly.

Part details

• Genuine Blanco part 0290024
• 510mm thermocouple
• Flame failure safety device for gas cooktop burners
• To be installed by a licensed gas fitter

Installing the thermocouple

In Australia, only a licensed gas fitter should install gas safety parts like this one. Turn off the gas supply and switch the cooktop off at the wall before work begins. The fitter will match the end fitting to the valve, route the 510mm lead clear of hot parts, and test that the burner holds its flame and shuts off as it should.

Questions about this part

Does the length matter?

Yes. Thermocouples are made in set lengths to reach from a burner to its valve, and different burners on the same cooktop can need different lengths. Measure your old one and check it matches 510mm before ordering.