Thermally sensitive controls

A kit of parts comprising:

• a thermally sensitive control comprising:
• a control body;
• a thermally sensitive control for controlling an electrical power supply circuit to a heater in a liquid heating appliance, the control comprising:
• a cordless electrical connector part arranged to mate with a corresponding base electrical connector part;
• first and second moveable electrical contacts mounted on first and second moveable members, each mating with a corresponding fixed electrical contact in the electrical power supply circuit when the first and second moveable members are respectively in a closed position;
• first and second thermally sensitive snap-action bimetallic actuators, each independently operable at an overheat temperature to move a respective one of the first and second moveable members from the closed position to an open position wherein the first and second moveable electrical contacts are separated from the fixed electrical contacts to interrupt the electrical power supply circuit;
• at least one latch arm mounting feature on the control body for mounting a pivotally mounted latch arm extending laterally across the control between the first and second moveable members,
• at least one release member mounting feature on the control body for positioning a release member;
• a latch arm comprising a first latch for the first moveable member and a second latch for the second moveable member, mountable to the latch arm mounting feature;
• and
• a release member comprising a release part and a plunger wherein the release member is mountable to the release member mounting feature so as to be 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 corresponding base electrical connector part,
• such that when the latch arm and release member are mounted, when the cordless electrical connector part is mated with the corresponding base electrical connector part, and when at least one of the first and second moveable members is moved towards the open position, such movement causes the latch arm to pivot so that the respective first or second moveable member moves past the respective first or second latch before the latch arm pivots back to adopt a latching position, in which the first or second latch can prevent the respective first and second moveable member from subsequently moving from the open position back to the closed position;
• and
• wherein, when the cordless electrical connector part is separated from the corresponding base electrical connector part, the release part is resiliently biased into contact with the latch arm, thereby causing the latch arm to pivot out of the latching position such that the first and/or second moveable member is no longer prevented from moving from the open position back to the closed position.

A liquid heating appliance comprising:

• a control unit comprising:
• a cordless electrical connector part arranged to mate with a corresponding base electrical connector part provided in a cordless base;
• a first moveable electrical contact mounted on a first moveable member mating with a corresponding fixed electrical contact in the electrical power supply circuit when the first moveable member is in a closed position;
• a release member comprising a release part and a plunger projecting from the cordless electrical connector part, wherein the release member is resiliently biased such that, when the cordless electrical connector part is being separated from the corresponding base electrical connector part in use, the resiliently biased release part drives movement of the first moveable member from the closed position to an open position wherein the first moveable electrical contact is separated from the fixed electrical contact to interrupt the electrical power supply, but the resilient bias is overcome when the plunger bears against a surface of the cordless base when mated;
• a first electrical terminal electrically connected to the first moveable electrical contact and a second electrical terminal electrically connected to the fixed electrical contact;
• an electrical heater;
• and
• an electrical switching arrangement physically separate from but electrically connected to the control unit between the first electrical terminal and the second electrical terminal of the control unit, wherein the electrical switching arrangement is arranged in a different part of the appliance to the control unit.