What should be be accurate measurements of flame sensor in the furnace unit?

Flame sensor should read between 5 and 10 micro-amps. If flame sensor shows below it should be replaced. Faulty flame sensor can cause the heating system to shut down unexpectedly. When the flame sensor fails, it sends a signal to the control board to shut off the fuel supply. This is a safety measure to prevent the release of unburned fuel or the buildup of dangerous gases. However, if the sensor is faulty, it may incorrectly signal a flame failure and cause the system to shut down unnecessarily. This can result in discomfort for the occupants leaving you without heat during cold weather. Faulty flame sensor can lead to dangerous situation where the furnace continues to release gas without igniting, posing a risk of gas leakage. Flame sensor is essential component of the furnace, providing safety, efficiency. Global Heating and Cooling LLC of Chicago provides 24/7 furnace repair.