... Lennox Furnace blower not running. My 2013 Hyundai i10 has one fan and as far as I can see one coolant temp sensor. Click on Shop Parts, or select the kind of product you're working with on the left and we'll help you find the right part. The gas valve sits between the blower wheels … I have ensured that the fan is set to "auto", on the thermostat. I can rotate with hand the blower and it moves freely. Sounds like a no-brainer, but if repairs or maintenance work were recently performed on your furnace, and it’s not working for some reason, you may want to check to ensure that it was turned back on. If the furnace starts, the problem is either with the thermostat wire or thermostat. A dirty thermostat can sometimes malfunction. Any ideas? I looked up a forum and another had the same problem. Any help would be greatly appreciated. Most electric motors, including the furnace blower motor, have a reset switch that pops up when this happens. The flame sensor safeguards your furnace by ensuring that gas flows only when there is a flame to ignite it. When your furnace won’t kick on, check to see if the pilot light may have went out. Extremely dirty air filters can sometimes cause your fan to stop working altogether. The furnace lights up, but the blower will not turn on if I have the thermostat in the auto position. I have an electric coleman 3500 furnace and a non programabke heat only thermostat. The switch has two settings: ON and AUTO. So my thermostat has two switches, system with cool/off/heat and fan with on/auto. Auto helps distribute air in the beginning of the cooling or heating cycle and then cuts off when the set temperature is reached. If your furnace is located by a door leading to the outside or you had a fan running near your furnace, the breeze could have extinguished the pilot light. A furnace requires proper gas flow to the burner assembly as well as electricity to the thermostat to actuate the heater. If your furnace’s fan isn’t working, check your thermostat and make sure it’s set to the correct setting. My woodfurnace is tied in series with my lp furnace. Many homeowners discover that their furnace is not working when they go to turn it on for the first time of the winter season.. Tie the red and white wires together, and switch the power on. The key is finding the furnace motor reset button to push it back down. Wood Stove Fan Still Not Working? If switch is set to on blower comes on amd no jeat even with sqitch turned on to heat. Your furnace will collect condensation from the air circulating throughout your house, and if this builds up, it can cause your furnace to stop working. If your thermostat has a fan setting, set it to “auto” instead of “on.” If it’s set to “on,” the blower fan may run continuously even when the furnace isn’t heating the air up to the set temperature. if it does then a/c on fan on if it doesnt look at capacitor for fan either way your going to have to call a tech dont run it could do more damage could be board t-stat cap or high speed windings or low voltage wire from t-stat good luck it will ice up if you keep running it and no the outside should not run without the blower running When the outside temp dips again and need the heater, it doesn't turn on. The auto setting turns the fan on only when the air conditioning or furnace is actively running. Vince It's a frustrating experience to turn on your furnace, only to discover no heat comes through the vents. FAN DOESN’T RUN - The furnace fires, but the blower does not start.. After the burners have ignited, the next step in the heating cycle is starting of the blower motor. I could hear the relays clicking occasionally so I investigated a little and found the elements are heating up and cycling, the relay inside the thermostat cycles (not repeatedly just when you turn it on and off), but the fan blower doesn't run/hum/make noise. You probably have a fan/limit switch that needs to be replaced. Check its condensate pan to make sure it is draining properly. ... Goodman Furnace blower not running. The pilot and gas burners start, but the fan does not. Click on Shop Parts, or select the kind of product you're working with on the left and we'll help you find the right part. Required Part. Lennox furnaces are quality units; however, similar to other furnaces, after some time, they can encounter their share of issues due to normal wear and tear or a lack of regular care and maintenance.When this occurs, you may notice that your furnace just doesn’t perform how it used to. When the fan in the on position, it will constantly blow air through the home. Now, if none of the two problems discussed above can fix the wood stove fan issues, the only other thing it can be is the control panel settings and programming. Replace the wire or thermostat to fix the problem. In winter time, our furnace fan runs non stop all winter long. Tip: Avoid setting your fan to ON, it wastes money because it forces the fan motor to run constantly. Turn the power to the furnace off and disconnect the wires from the thermostat. While the heater may work, if the fan or blower motor are not functional, the furnace won't effectively distribute the warm air throughout the house. Problem: Fan is not working. By the way, never take a gas valve apart, unless working as part of a demolition team. That helped him, so I tried that and the fan still didn't turn on? When the ac is of the radiator hoses both become same heat after a while and the overflow reservoir starts boiling over and the fan do not kick in. Furnace Not Working—Oil Burner First of all, if the oil burner goes on and off too much, clean or replace the filter . I came home from work last night, turned the heat on and it didn't work as advertised. I have Ultra II 90 high efficiency furnace maid by Magic Chef. Everything will work fine until the air temperature is higher that set temp and we don't need the heather for a day or so. I have an Intertherm Electric Furnace E2EB-015AH. To test a Suburban gas valve, you are going to have to pull the working parts of the furnace out of its case. Not sure if the unit was humming though. But to verify that, I'd connect the two fan switch wires to see if that switches on the fan. Note: If you or a tech has recently tampered with your furnace, it’s possible that the fan limit switch was set incorrectly by accident. The blower will turn on if I turn the thermostat to the fan position. Often the problem corrects itself and it is only a matter of pressing the reset button to get the furnace going again. The main blower on my furnace isn"t working. Today the furnace fan stopped working. He was working then all of a sudden furnace wont kick on with switches set at auto and heat. If your furnace fan is still blowing, continue onto step 2… 2. Verify the fan is operational. If your furnace won’t kick on, check the pilot light. Then it runs until it gets down to 85 degrees. I replaced water pump and radiator and coolant temp sensor. Also, if the fan limit switch override (a small knob on the switch) somehow got set to MANUAL instead of AUTO, the blower will run constantly—whether or not your furnace is going through a heating cycle. Typically, the flame sensor comes in the form of a rod that can be found near the back of the furnace, right in the path of the burner. Blow out any dust or debris furnace out of its case from thermostat! 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