WebOct 5, 2024 · Most of the time, furnaces go into ignition lockout because of issues with flame sensors, igniters, or limit switches. Here are the most common lockout culprits explained. Defective flame sensor. Defective flame sensors are one of the most common causes of lockouts. When your furnace begins to start, the sensor checks for the … WebProblem #3: A bad gas regulator. Your gas regulator is usually located at your home’s gas meter. Its job is to decrease the pressure of the natural gas before it enters your home and gas appliances. But if the regulator is old …
Furnace Keeps Turning On And Off? (Possible …
WebJan 2, 2010 · Turn the furnace off. Remove the door where the burners are. If you look closely at the rack of burners toward where the heat exchanger tubes are (where the fire goes) on one end you will see the ignitor. On the other end you will see a flame sensor. This sensor is merely a metal rod that hangs out in the path of the flame. WebNov 28, 2013 · I followed the trouble shooting tree in the install guide. It said "flame lights but won't stay lit-check flame sensor l.e.d. if flashing clean or replace the sensor." I cleaned it, with out removing it, with fine steel … ray hughes bio
Furnace Flame Sensor – Everything You Need to Know
WebSep 13, 2024 · 2. Poor flame sensor positioning Another reason the pilot flame may go out without lighting the main burner is the incorrect flame sensor positioning. The flame sensor must be close enough to the pilot flame to detect the flame. If it’s too far away, it may fail to detect the presence of the flame. Or, it may only detect a weak flame. WebSep 15, 2024 · The most common sign of a bad thermocouple is the flame going out after releasing the gas control knob. How much does it cost to replace a thermocouple on a furnace? Replacing the thermocouple with the help of an expert can cost more than $200. However, it can be done just with the price of the thermocouple ($75) if you follow our … WebYour furnace probably keeps turning on and off because of a dirty air filter or flame sensor. You may also have an electrical issue or a faulty thermostat. Check the air filter and clean or replace it as needed. Check … ray huffines plano tx