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8402-133 OBSOLETE
- Limit L140-30/3" Green/Green
Bard part 8402-133 is an OEM temperature limit control (L140-30 with a 3 inch element) used in Bard wall mounted gas electric equipment to monitor heat section temperature and open the control circuit if the unit overheats. This safety switch is a key part of reliable furnace operation because it helps protect the heat exchanger and surrounding components from excessive temperature conditions that can be caused by airflow restrictions, dirty filters, failed blowers, or venting issues. The green green lead identification helps match the correct harness connections during replacement, and using the correct Bard limit rating is important to maintain proper safety operation and avoid nuisance trips or unsafe operation. Verify fit by model and serial number before ordering since Bard uses multiple limit ratings across similar unit families.
Official replacement(s):
8402-133BX
- Limit L140-30/3" - Boxed Green/Green