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Carrier 39-3SI Flame Sensor
A flame sensor is an important feature that will reliable sense the appropriate flame when igniting the system. As with most devices used for safety reason, if the flame sensor senses a problem everything remains shut off until obstacle is corrected.
General indicators that your furnace flame sensor is in need of replacing
- The LP or natural gas cannot properly ignite no matter what you do
- The gas furnace is unwilling to supply heat and will shut everything down
- HVAC system starts occasionally when it wants to
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If you decide on picking up or purchasing any Carrier 39-3SI replacement part, do your due diligence and double check the model number and also make a visual comparison in order to be sure the right flame sensor is being ordered. If you are unsure about the installation of the new flame sensor by yourself then it may be wise to find a professional in your area to do the work for you.
Feel free to download your manual for help.
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