Today, furnaces are more efficient and mechanically sound than ever before. However, because they use volatile elements like fuel and an open flame, they have been equipped with safety switches that will shut the system down if a problem occurs. The experts at furnace repair in Wichita Kansas want to ensure that homeowners understand how the safety features work, so here is some need to know information.
Pilot Sensor
A furnace has a pilot sensor, some refer to it as a flame sensor. This is what controls the flow of gas coming from the gas valve. It is able to confirm that there is a flame when the furnace starts up. If not, unused gas would accumulate and fill the home. In situations where the sensor doesn’t detect a flame, it will automatically shut the unit off.
Temperature Limit Switch
In furnaces that run on gas and heating oil, the limit switch is what turns the blower fan on and off as needed. If the interior of the furnace starts to get too hot, it can also shut down the burners. In this situation, flames can reach outside the combustion chamber, which is a fire hazard. In situations where residents hear their blower fan running incessantly, it is probably the result of a limit switch that is malfunctioning.
Rollout Switch
Another safety mechanism is the rollout switch. This will cut the power to the furnace in the even that its internal temperature rises above 350 degrees. When overheating is detected, it communicates this issue to the furnace control board to shut off the power. If a homeowner is finding that their rollout switch needs to be reset frequently, it may indicate a leak in the heat exchanger. This is can be dangerous and needs to be addressed as soon as possible.
Carbon Monoxide Detectors
Although a carbon monoxide detector isn’t part of a furnace, they are closely linked to the safety of a furnace. They will warn the homeowner if their system has a carbon monoxide leak. They will warn residents as CO is building up in the air inside the home.
Those in need of furnace repair in Wichita Kansas can turn to the experts at Kelly & Dawson Service. They have been serving the area since 1960. They provide service and repair on all makes and models, proving fast and reliable service. To get additional information click here.
