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Bard part number 8402-143 is an OEM automatic temperature limit switch used to protect Bard wall-mount HVAC equipment from overheating by opening the control circuit at a 155 degrees F limit and automatically resetting as the unit cools. This L155-30 Exp. Face Auto Tan style limit is commonly used in heater and safety circuits where dependable temperature sensing and repeatable reset action are critical to normal operation. If you are troubleshooting a no-heat condition, nuisance trips, or intermittent shutdowns tied to high temperature, replacing the 8402-143 with the correct Bard OEM limit switch helps restore proper safety control and ensures the unit runs within intended temperature limits.
* Orders less than $50 may incure a minimum order fee.