Rollout switches trip because flames are burning back where they are not supposed to be. Possible causes include a stopped up vent, a stopped up heat exchanger, low gas pressure, or a cracked heat exchanger. In the case of the plugged vent or heat exchanger.
Likewise, how do I know if my limit switch is bad? The most common sign of a malfunctioning limit switch is the continuous operation of your furnaces blower. Just as the limit switch wont allow the fan to turn on until the warm air has reached the right temperature, the limit switch also shuts down when the air cools to a certain temperature.
Hereof, can you bypass a flame rollout switch?
Bad flame rollout switch want to bypass to run fan for AC. Shut off the gas first. You should look for the roll out switch as some of them have a reset button on them. A tripped roll out switch is a serious problem so dont put off until the fall to find out why it tripped.
What does a rollout switch do?
The roll out switch is a safety mechanism on your furnace. If the furnace overheats, the roll out switch shuts the furnace down to prevent a fire from starting in your furnace. This safety feature not only protects your home from fire, but also prevents damage to your furnace.
