Price Match Guarantee
Carrier Limit Switch HH680310
This part HH680310 is compatible with:
- Product Type:
- Furnace, Packaged Unit/RTU
- Brands:
- Carrier
Related Articles & Videos
Limit Switch Customer Reviews
Common Problems Fixed by the Limit Switch
Based on customer reports and repair data, this part commonly fixes these issues:
About the Limit Switch
The flame rollout limit switch monitors the heat surrounding the burners. If the inducer fan motor cannot draw enough air through the burners, or if the furnace is not venting properly, the rollout limit switch will open to halt the ignition sequence and prevent the furnace from heating. When this happens, the furnace will shut off after running for a few minutes. To determine if the flame rollout limit switch is defective, use a multimeter to test it for continuity. If the switch does not have continuity, replace it. Be aware that poor airflow through the burner is often a result of insufficient ventilation or a restricted exhaust vent. Make sure that your furnace is in a properly ventilated location and the exhaust vent is clear of obstructions.
Shop by Brands
Repair Help by Brands and Product Type
Alternative Part Number(s)
Family-owned and operated since 1912, Burke America Parts Group is the longest-running genuine appliance, HVAC, and outdoor power equipment parts solution in North America. At Repair Clinic, we're proud to be an international brand trusted by the pros as well as the DIY community.
About Repair Clinic