Electronic Ignition Furnace Blowing Cold Air

Broken or peeling duct tape broken mastic or ductwork.

Electronic ignition furnace blowing cold air. Your thermostat settings need to be adjusted you have leaky air ducts your fan limit switch settings need to be adjusted. Since there are many different types of gas furnaces it is difficult to cover every single possible gas furnace problem that can occur with a gas furnace in one article. It s possible your furnace overheated. My electronic ignition furnace won t ignite.

Check the furnace s air filter your furnace may be blowing cold air because the filter is too dirty. Well if your furnace is blowing cold air it s most likely due to one of these problems. Fred paul getty images if your gas furnace is blowing cold air a number of factors could be to blame many of which you can address on your own without the immediate help of a service professional. 2 furnace overheated let s say your furnace blows hot air then cold air but then stops blowing any air at all after a while.

To troubleshoot a misbehaving gas furnace start with the easiest explanations and solutions then work your way to the most complicated. The blower keeps blowing to cool the furnace down to a safe level. When overheating your furnace can trip a high limit switch causing the furnace burners to shut off so that the heat exchanger does not crack. Have an expert inspect your ducts along with the furnace.

Your furnace blowing cold air could be caused by hot air escaping through holes in the duct work that carries the heat throughout your building. If so the limit switch a furnace safety device turned the furnace burners off. Why is my furnace blowing cold air. Although the furnace may be sending heated air into the ductwork by the time it gets to the registers it may only be cool air blowing out.

Electronic ignition gas furnace problems troubleshooting gas furnaces are a prevalent form of heat for homes and businesses and occasionally a gas furnace needs to be repaired because of a problem with the gas furnace. But now an electric ignition system have started to replace pilot lights.