WebJan 18, 2014 · West Palm Beach, FL. Most LP furnaces have a fan delay circuit that makes the fan run for 20-60 seconds before ignition and keeps it running a similar amount after the flame shuts off (both for safety reasons). If that circuit fails, the fan might keep running. Just how that circuit works and whether it is a separate module or part of the main ... WebNov 21, 2024 · Furnace blower fans will continue to run for a bit after the flame shuts off to strip the remaining heat from the heat exchanger and bring it into the rooms the furnace is heating. Think of it this way - the gas valve (the flame) is controlled by the thermostat, but the blower is controlled by a sensor mounted in the heat exchanger. ...
Why Your Furnace Is Constantly Running (and What You …
WebSep 5, 2024 · Indoor fan keeps running. Does your indoor furnace or air handler fan keep running and wont shut off? In this video I go over 10 reasons that can cause the b... WebFeb 15, 2024 · The first thing you’ll want to do is make sure that you set your thermostat to an appropriate temperature. For instance, if you set your thermostat to 100 degrees when it’s below zero outside, your furnace … charm korean bbq reservations
Furnace Blower Keeps Running But No Heat: Causes & Solutions ...
Web01 - York Furnace Control Board. The control board has relays that regulate the voltage to each component in the furnace. If the relay that controls the blower motor fails while it is closed, it will send continuous voltage to the blower motor, causing the motor to run continuously. If the control board is at fault, replace it. WebDec 1, 2024 · Broken Fan Limit Switch. If the fan limit switch is broken, your furnace may constantly run. The fan limit switch is an electrical device that determines when the furnace’s blower fan turns on and turns off. A broken fan limit switch can result in one of two things: the blower fan not running at all, or the blower fan constantly running. Your fan limit switch is located inside the furnace panel cover, usually near the upper right corner. The fan limit switch is responsible for turning the blower on and off at the appropriate times. So, when the switch is working correctly, your furnace fan should turn on several minutes after thermostat calls for heat and … See more Your fan limit switch will have a small white button on the lower left corner. That button tells the switch whether to operate manually (run the fan all the time) or automatically (run … See more If your fan limit switch is set to AUTO but the fan continues to run without ever stopping, you’ll need to call a professional. Two problems that … See more charm korean