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icooleyAug 14, 2025
What should I do if the primary limit and/or rollout switches are open on my Trane CSA006?
- AAustin WilliamsAug 14, 2025
If the primary limit and/or rollout switches are open on your Trane Air Handler, take these steps: 1. Use an OHM meter to find out which switches are open. 2. If a limit switch is open, check the temperature rise and airflow across the heat exchanger. 3. If the high limit does not reset with proper airflow, replace it. 4. If the rollout switch is open, inspect for flue vent blockages or air leaks in the cabinet. 5. Reset the rollout switch and observe the flame for any signs of rolling out.