Furnace not turning on automatically

I had noticed that the exhaust fan would turn on, followed by the burners kicking in. Is the problem in the thermostat or the furnace? Something is probably triggering an automatic safety shutdown of the furnace.

Reasons for the furnace not working can be complex or very simple. Forum discussion: My gas furnace does not always turn. This has never happened during the summer, this only happens during the winter.

This article shows you how to troubleshoot your furnace.

Ideally, the problem of your furnace not turning on will happen during the day and at the very beginning of the heating season. Though HVAC professionals should repair most furnace problems, you can take care of a. In the heater mode, the burners fire but the fan does not come on. See How to diagnose your blower problem.

I changed the thermostat and still have the problem. Your furnace or air conditioner air handler is not designed for continuous fan. Other causes for an air conditioning blower fan that does not turn off could be a . This tutorial explains how to evaluate problems and repair your solid state electronic ignition gas furnace.

My Furnace fan does not shut off automatically.

If the fan stays on continuously, change its setting to Auto. It was the Gas Valve + auto pilot. Set your thermostat Mode to Off and Fan to Auto. If your system is still not turning off, confirm that you labeled and installed your wires properly. My furnace fan is not turning on when it is set to auto I can hear the furnace light up but then shuts off shortly after heating up.

Despite its complexity, problems with an oil-burning furnace are rare. If not, switch the fan setting from “automatic” to “on” or “run. OK the fan works fine on air conditioner . The furnace fires, but the blower does not start.

Troubleshooting Gas Furnaces and Gas Heaters - Most problems with gas furnaces are fix-it-yourself jobs, such as changing the filter. For example, you can set the fan to run all night and turn off in the morning automatically. Does your furnace try to kick on at all when the stat is set on Auto and . If the furnace comes on, your thermostat is quite likely the problem. I learned that many users were having the same problem as me. While gas furnaces and boilers are efficient, they can have problems like any other.

If you want to make sure your automatic ignition furnace is working, follow these steps: 1. By the time we got home from church though the fan was stopped and the. ON instead of AUTO at the thermostat, so the fan should be.