For this job I performed a evaluation. I discovered the the flame sensor was dirty and the unit would not stay on due to the dirty flame sensor. I reccomended a membership and replacement of the sensor if the issue occurs again. I cleaned the sensor and it began to run within normal limits. I instructed homeowner to try turning on the furnace periodically yearly to keep the sensor from building up dirt a d causing the same issue. Thank you for choosing comfort experts, have a great day!