12540930 Genuine Cooling Thermostat 65°C for Blanco Ovens, Blanco Oven Cooling Fan Control Thermostat Replacement

12540930 is the genuine Blanco 65°C cooling thermostat for Blanco ovens. It's a small fixed-temperature switch that monitors heat around the oven casing and turns the cooling fan on once it reaches 65°C, then off again when things have cooled down. That fan protects the controls and the surrounding cabinetry from excess heat while the oven is in use and after it's switched off.

Blanco oven cooling fan won't start or won't stop?

Built-in ovens rely on the cooling fan to move hot air away from the controls and out through a front vent. If the cooling thermostat fails open, the fan never starts and the control panel, knobs and cabinet front get hot. That heat can damage electronics, warp cabinetry and trip the oven's safety cut-out. If the thermostat fails closed, the fan may run constantly, even with the oven off and cold. A fan that runs for a while after cooking is normal, as it's clearing leftover heat. Test the thermostat with a multimeter before replacing it.

Part details

• Genuine Blanco part 12540930
• Oven cooling fan thermostat
• Switches at 65°C
• Suits Blanco ovens built with this thermostat

Replacing the cooling thermostat

Isolate the oven at the circuit breaker and let it cool. Built-in ovens are usually hard-wired, so this is a job for a licensed electrician. The thermostat is normally mounted near the top of the oven, often reached by removing the top or rear panel. Swap the wires across, make sure the new thermostat sits flat on its mounting so it reads the temperature properly, and check the fan starts as the oven heats.

Questions about this part

Is it normal for the cooling fan to run after I turn the oven off?

Yes. The fan keeps running until the area around the oven drops back below the thermostat's switching point, which can take a while after a long bake. If it runs non-stop with the oven cold, the thermostat may have failed.