Abstract: A thermally sensitive control for controlling a power supply circuit to a heater in a liquid heating appliance is provided. The control includes a cordless connector part arranged to mate with a base connector part, first and second moveable electrical contacts mounted on first and second moveable members, and first and second thermally sensitive actuators. The control further includes a latch arm extending across the control between the moveable members, the latch arm including a first latch for the first moveable member and a second latch for the second moveable member, and a release member including a release part and a plunger, wherein the release member is resiliently biased to bring the release part into contact with the latch arm but the resilient bias is overcome when the plunger bears against a surface of the base connector part.