The Trane SEN0355 is an essential safety accessory for Trane gas-fired furnaces and boilers. It is a flame sensor and informs whether there is a flame in the burner assembly or not. This sensor or though a photodiode or some other light sensing component, intensity of ultraviolet light emitted during combustion is measured. The sensor picks up UV light when the flame is burning properly and sends a signal to the control board that all is well. However, the sensor does not sense the UV light and initiates a safety shutdown process if the flame extinguishes or ignites in a wrong manner. It prevents accumulation of unburned gas in the system which may cause explosion or poisoning by carbon monoxide.
What maintenance is required for the Trane SEN0355 Flame Sensor?
Regularly clean the flame sensor with a soft cloth or fine sandpaper to remove soot and residue. Inspect for corrosion or damage and ensure it is securely mounted. Proper care ensures accurate flame detection and safe furnace operation.
What are common issues with the Trane SEN0355 Flame Sensor?
Failure to detect flame consistently.
Intermittent ignition.
Sensor corrosion or buildup.
Loose or misaligned mounting.
Installation Steps
Step 1: Turn off power to the HVAC unit before starting.
Step 2: Locate and remove the existing flame sensor from the unit.
Step 3: Carefully disconnect the sensor wire.
Step 4: Install the new Flame Sensor in the same position and reconnect the wire.
Step 5: Secure the sensor with its mounting screw.
Step 6: Restore power and test the HVAC unit to ensure proper ignition.