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electric furnace blower not working

If you are getting 220 volts to the heat strip and the heat strip is not heating then I would say that you are right in thinking that the heat strip is bad. I have an electric coleman 3500 furnace and a non programabke heat only thermostat. I’m sure a lot of people will find your article helpful. I have a problem with a bryant electric furnace fan runs and sometimes have heat check 24 voltage red wire had 24 volts constant turned on 3 wires had 24 volts to sensors checked voltage at heat element had 220volts could I have a heat limit switch blown, Hi Keven! In this set up the fan is not energized through the thermostat except in the air conditioning mode. The freezing air makes you shiver, or the summer heat makes you sweat. I am sorry, but I have no idea where the wires go. This shoulds like you might have a sequencer or blower relay that has gone out and not allowing the furnace blower motor to come on. You most certainly do not want the heat coming on in the summer! There is a good video on troubleshooting electric furnace sequencers on the following page: https://youtu.be/Q3UXjzDZYek We also have a post and some good videos that I hope will help you out on the following page: https://arnoldservice.com/problem-electric-heat-will-not-come-on-or-fan-will-not-come-on/ I hope you can easily find and fix the problem. After you find the control then I would suggest turning the high voltage power back on being careful not to ground yourself out and get shocked. I changed the thermostat and thermostat wire. I would recommend that you purchase a Volt Ohm meter tester for some of the troubleshooting procedures listed in this section. Check your breakers or fuses inside the air handler. that is grounded out. You might want to check to see if there are any wiring instructions that came with the new electric heaters. It suddenly stopped kicking on. If your home is a little older, it is quite possible that the humming sound doesn’t originate … Adjusting the rise and fall of temperature can also help solve the problem. This looks like a two-stack sequencer, because of the divisions in the layers of the sequencer: 3. Just installed a heat strip in a Goodman heat pump. You should have 24 to 28 volts between these two wires if you do not then you either have a blown low voltage fuse, a loose thermostat wire, or a bad transformer. Website operating Tie the red and white wires together, and switch the power on. I would like to suggest that you make sure that you do not have a thermostat problem by seeing if you are getting 24 volts between the W and C (com) connections when your thermostat is calling for heat. I am sorry, but I have never heard of this happening. Please help, Hi Matthew! Hi my electric furnace the blower works but! Hi Steve! Happy Thanksgiving! Diagnosing the problem correctly can help fix the problem. Heats in auto but fan Doesn’t turn on. I am sorry that I can not be of much help. Thanks , Gary, Hi Gary! If the blower motor just sits there and hums, this usually means that you have a bad winding in your blower motor and you will need a new blower motor. I hope that someone reading this post will give you some help and advice. I find burnt wires and connections to be a major problem in electric furnaces. Next, reset your thermostat to factory settings and try running your system again. Hi Jason! The electric relay in a furnace is responsible for relaying electrical power to the heating elements and the blower motor inside the furnace cabinet. A good electrical tester multimeter would be nice to test your fuses. Since you have a 220-volt air handler there usually will be 3 wire cable running into the air handler. only issue is the aux heat strips dont kick on when its time to. Sorry that I can not be much help. I'm trying to start it up for the fir... Why is my fireplace blower blowing out cold air instead of hot air? any help would be appreciated. It sounds like you are not getting low voltage power from your low voltage transformer. I hope you can easily find and fix the problem so you can have a warm New Year! I hope this helps you find and fix the problem. A blown or tripped fuse will cause the furnace to stop powering on. Place your order today! Steve. If your furnace won’t kick on, check the pilot light. Hi Brady! First of all, if the oil burner goes on and off too much, clean or … If the capacitor that starts the system is failing, you could get intermittent … We welcome your comments and We Provide Fast UPS Shipping! Best of luck. I tried my first h/p thermostat and nothing here either. There is a variable speed switch on the front of the blower low med high - cannot tell a difference in the settings when switching - at least by sound. Whether you need furnace ignitors, AprilAire filters, EZ Flex filters, or another kind of HVAC merchandise, we want to serve you. I've got an old Lennox Pulse Furnace. I hope you can easily find and fix the problem. If not then the board is bad and not getting power to the heat winding of the blower. If it does, then the motor is bad. Sometimes the thermostats come from the factory and are set to only energize the “G” green blower connection on air conditioning and not in the heat mode. If you ever experience a problem with any of your orders, contact us right away and we will make it right. Problem: Electric heat will not come on or fan blower on the air handler will not come on. Furnace Blower Fan Wont Turn Off - Hello Richard, I have a problem with my furnace where the indoor blower will turn off. What could cause this issue? If you are getting 24 volts between G and C and the fan is not turning on then you probably have a sequencer or fan control board problem. Steve. I also have power at the squirrel cage fan . Replace the wire or thermostat to fix the problem. When I was doing service work many times I would find burnt connections on electric furnaces. Problem: Electric furnace heat will not come on or fan blower will not come on. 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. I would suggest making sure that your thermostat is energizing the fan in the auto mode through the green wire. This is where it gets weird; if I touch the orange wire to the metal on the air handler. You should be able to test with a volt meter to see if the fuses or breakers are on. I have interthrem electric furnace model feh-015ha-03 i replaced the sequncer and the rocker switch before replaced was getting funace to come on fan and heat but wont shut off till pull power off so changed the parts i said and now fan will come on only on the on postion and it wont heat to coils now do i have wires in wrong spot for heating maybe? It has been working fine for about 5 months. You could have an open fusible link, a burnt wire, a defective sequencer, or yes, a burnt-out heat strip. Below is the video by Grayfurnaceman on how electric furnaces operate: Thanks Grayfurnaceman! The fan setting should be on “Auto.” In the “On,” “Low,” “Medium” or … You might have a thermostat problem if your thermostat is set up to run 24 volts through the green wire to turn the blower on in the heating mode, you could have a sequencer problem if the sequencer times the fan to come on after the sequencer is energized from the white (W) wire on the thermostat. Another way to diagnose the problem is by jumping out the thermostat. Please make sure your electrical power is turned off before trying to repair or inspect any type of electrical appliance. Turn the power to the furnace off and disconnect the wires from the thermostat. Please click here if you would like to see the Amprobe type meter that we sell. home improvement and repair website. The blower motor blows air through the return vent, past the heat exchanger, and into the home’s venting. No matter where I set the thermostat it just hums. First, make sure that power is getting to the motor. Steve. We sell furnace parts, air conditioning parts, AprilAire filters, EZ Flex filters, and many other HVAC parts and supplies at affordable prices. The blower motor runs the fan that sends air through the heating elements and then into the ventilation system. Sorry, this is hard to troubleshoot without being there to test with a voltmeter. Steve, My nordyne furnace the blower and heating elements won’t work replaced the thermostat and composter but still want work, Hi Mr. Webb! You could look in the furnace and locate the blower wire that is on the heat terminal of the board and then find one that is on park and switch the two and see if the blower runs. Your email address will not be published. I really have no idea what could be going on with your unit without being there to test with a voltmeter. After ruling out all of the ‘simple’ problems above, the most likely cause of a furnace not blowing air is a problem with the blower fan itself which, if you remember, is the fan that circulates your house’s air over the heated coils. Hi Ken! If the limit control is working, you'll see the dial start to rotate towards the FAN ON temperature; when the plenum temperature reaches the FAN ON temperature (read on the face of the dial) The blower should start. Here are some probable causes behind this situation and ways to deal with them. I came home from work last night, turned the heat on and it didn't work as advertised. But as soon as they stop working, it's readily apparent. Sorry that I can not be much help. If power is getting to the blower motor, but the motor does not run, the motor may be burned out. So sorry to hear that your heat pump will not work. Thanks for asking your question. We have one of the Best in Website Security with a Norton Symantec Secured Website and Shopping Cart! Any help would be greatly appreciated !! The 220-volt fan motor would run off the two hot wires and usually the neutral wire is not involved with wiring the fan motor. We carry a huge range of brand name items that can be purchased online. Replace the wire or thermostat to fix the problem. Steve, I have a Electric air handler my ac and blower motor works but when I turn on the heat I have nothing no blower motor or heat strips I replaced the thermostat when turned on to ac it works but have no heat or blower motor when thermostat is in heat mode, Hi Dennis! You would also have one common (C) wire to the heaters to make the circuit complete. Some of the electric furnaces and sequencers are set for the fan to come on after the electric heaters are energized and are timed for the blower motor to be energized after 15 to 20 seconds the fan is energized through the sequencer. The heat strip will not come on if I have the orange wire connected to the circuit board; but the fan will. Hi Russ! You can see where the heat build-up and arcing have caused the terminals to completely burn off the left side! Start by turning the furnace off, turn your thermostat to “fan only,” and wait a few minutes. Managed by Wooassist - Woocommerce Support www.wooassist.com. I have no idea what your problem could be. Vibrations from a motor or a furnace blower that’s not installed properly can eventually short circuit the wires. Time to call in … We Have Promptly Shipped Over 350,000 Orders Since 2002! Answer: 1. Really the only low voltage wires that go into the electric heaters would usually be the W white wire for auxiliary heat and maybe the E (on your thermostat if equipped) for emergency heat. If there is a battery, check if it is working properly. It sounds like with the new heater installation that it broke the connection with your outdoor heat pump. Well I cut all power and double checked the tstat wiring and found nothing to be wrong. Some air handlers have high voltage breakers instead of fuses. When on, the valve's … Troubleshooting Common Problems with an ... Troubleshooting Common Problems with an Air Conditioner Condenser. When I move the orange wire away from the metal the fan shuts off but the heat strip stays on. Verify the unit has power. Please see the picture (compliments from one of our nice customers) below of a burnt heat sequencer. The green wire and the yellow wire on your thermostat should be energized when the thermostat is calling for cooling. You might want to disconnect the W or W1 wire or turn off your electric heaters so the electric heat does not come on. Problem: Electric heat will not come on or fan blower on the air handler will not come on.. Answer: 1. If switch is set to on blower comes on amd no jeat even with sqitch turned on to heat. to this site, and use it for non-commercial use subject to our terms of use. He was working then all of a sudden furnace wont kick on with switches set at auto and heat. I installed new sequencers. Hopefully the outdoor unit will cycle when the thermostat is satisfied. I am sorry, but I do not know how to advise you to troubleshoot this problem. problems contact webmaster@doityourself.com. If the fan for your electric furnace stops working entirely, you may need to have a … I hope you can easily find and fix the problem. Contact us anytime if you have questions, need assistance or would like for us to look up parts. When 24 volts is applied across the two bottom connections on this sequencer you should get continuity (a closed circuit) between the two terminals the one on the left M1 and the one on the right M2. What would you suggest ? It sounds like you have one of your heat pump components (blower motor, sequencer, control board?) The heating elements provide the heat to warm the air, and the blower motor sends this warmed air through the ductwork. We are Accredited Better Business Members with an A+ Rating! Your furnace blower fan not starting can have a few causes as you see here. submitted to our "DoItYourself.com Community Forums". Not to fret, electric fireplaces are fairly straightforward devices and there’s probably a logical reason the heat or flames may not be working. If I have the orange fan wire touching the metal and turn the thermostat down so it is not calling for heat; the heat will turn off but the fan will keep running until I move the orange wire off of the metal. If you do not know much about electricity and you do not have a volt meter then I would suggest that you call a professional in to troubleshoot because working with electricity can be dangerous. 1995-2018 MH Sub I, LLC dba Internet Brands. Steve. Hi Gordon! here is the model number of the furnace iam working with feh-015ha-03 intertherm, Hi Jerry! I reattached the wire have and face unit and now nothing is working , no condenser , no air handler fan nor aux heat. Steve, Gary I installed the Heagstat H725 heat pump 2 heat 1 cool battery or hardwire 5/1/1 or non programmable thermostat to my heat pump in programmable mode (no C wire) . It is a 6 wire system 1 cool 2 heat (heat strips) . If you are not getting 24 to 28 volts AC between the G and Com terminals when your thermostat is calling for cooling then you probably have a thermostat problem. https://arnoldservice.com/problem-electric-heat-will-not-come-on-or-fan-will-not-come-on/, https://www.youtube.com/watch?v=9o4njCbWy6o, https://arnoldservice.com/problem-why-i-am-not-getting-24-volts-to-the-contactor-where-does-the-24-volts-come-from/, https://arnoldservice.com/problem-my-24-volt-transformer-continues-to-burn-up-this-is-the-second-transformer-what-could-be-the-problem/, https://arnoldservice.com/how-to-wire-up-a-heat-pump-thermostat/, https://www.youtube.com/watch?v=Q3UXjzDZYek, https://www.youtube.com/watch?v=v6BVL2qhRQU, American Standard Trane Condenser Fan Motors, ICP Heil Tempstar Whirlpool Flame Sensors, Trane American Standard Furnace Draft Inducers, Trane American Standard Pressure Switches, Managed by Wooassist - Woocommerce Support. You can remove these fuses and test them with a multimeter or if you do not have a multimeter, install new fuses to make sure they have not gone bad. Steve. This is another common reason behind faulty blower fans. I would suggest setting your thermostat to “Fan ON” and testing with a volt meter to see if the motor is getting 220 volts through the two wires that power the blower motor. Steve. Before long the entire wire will be burnt off. If the motor collects too much dust or loses lubrication, it can overheat and fuse the wires in its casing. If you still are not getting electric heat then you should test your sequencers to make sure they are working. It is an older furnace, and I have checked the thermostat settings. I hope you can easily find and fix the problem. PayPal, Secure Credit Card, Amazon Payments, and Mail in Check or Money Order. Start by checking other electrical components throughout the house. 2. suggestions. Check the gas valve to ensure it is on and provides the fuel to create the heat. It blows cold air what can I do. More details are below. What’s your neutral wire gonna be usually in the unit, Hi Bryson! If this post and the YouTube videos that we have did not help you troubleshoot the problem that you are having with your electric furnace then I would like to suggest that you watch the troubleshooting video on the following page: https://www.youtube.com/watch?v=9o4njCbWy6o I hope that video will help you find and fix the problem. heat strips dont heat up, fan blows and have heat. Steve, I have a straight heat / cool hvac unit in my modular home if I turn fan to on the blow works but on auto and heat it will not come on its 10kw heat strips. I hope you can get it fixed soon! All information is provided "AS IS." Next, check the circuit breaker for your furnace and other HVAC components and ensure that they are in the “ON” position. If the furnace starts, the problem is either with the thermostat wire or thermostat. The Youtube videos are really good: https://arnoldservice.com/how-to-wire-up-a-heat-pump-thermostat/ If you have any more questions or if you want to send me pictures then it would be best to use our email address: arnoldservice@gmail.com. Hope you can easily find and fix the problem. Copyright© Condenser will engage with the contacts pushed in manually and I have power to an from breakers in air handler. If the fan does not start, you have a wiring issue (circuit breaker trips) or motor problem (circuit breaker does not trip). Furnace Won't Turn On If the furnace won't kick on at all, there could be a few reasons for this. A/C – and fan in air handler worked perfectly fine but only had aux. Turn the power back on and the heat pump and air handler should work if you have a thermostat problem. Without me being there to see and test the sequencer and wires going to the fan motor and coming from your thermostat. Any connections that are the least bit lose inside the furnace will cause a heat build-up, arcing, and eventually a completely burned off connection. Please be careful when working with the high voltage to not ground yourself out. You should also have continuity between M3 & M4. Furnace turns on, but no heat, and fan not kicking in... Lennox Conservator III G16 What do you guys think is wrong when you hear th... Hello everyone. Still have no operation at condenser or air handler. But the blower will turn on when switched from auto to on?? First and most important, Please make sure your electrical power is turned off before trying to repair or inspect any type of electrical appliance. Here are some typical problems and solutions to check if your unit isn’t working properly. Keep on sharing many more useful tips and articles in the future! G (green) usually controls the fan relay and would attached to the G connection inside the air handler. I would like to suggest that you make sure that you are getting 24 to 28 volts AC out of your heat pump’s low voltage transformer by testing with a voltmeter between the C (com) andy R (usually Red) wires. Until you get it fixed I would suggest setting the Fan to “ON” so it runs all the time and set the thermostat to cool. We would love to have your business! I hope that the following post might help to show you how a heat pump thermostat is wired. Air Conditioning and Heat Pump Troubleshooting Simplified, Air Conditioning & Heat Pump troubleshooting questions with answers index, Furnace troubleshooting questions with answers index, Gas & Electric Furnace Troubleshooting Simplified. This is really hard to advise you because electric furnaces are pretty complex with all the wiring. Thank You. I always liked to use an Amprobe type meter when testing electric furnaces because this type of meter will allow you to clamp around an electric wire, let you see the current and see if the fan or electric heater is working or not. Most of the time the heat strips are OK. What ever control that controls the fan motor going off an on could be the problem. If you are not getting 24 volts between W and C then you probably have a thermostat problem or a broken thermostat wire problem. I would suggest that you do a search on “How to troubleshoot an electric furnace” using Google. Check Your Furnace Blower Fan. I have an older carrier unit that won't run. With the thermostat set for heat see if you are getting 24 volts to the fan relay control from the thermostat. We offer same-day shipping on most products, so you won’t have to do without the goods you need for long. If they aren’t working either, then call your electric company. Already cleaned filter, checked drain pan, replaced thermostat. You may also notice a problem if the blower does not run, or does not stop running when it normally would. If the blower does not start the most-likely the limit control temperature sensor is not working and the control needs to be replaced. Faulty starting capacitor. The furnace is old but heats well when working and the AC functions great. If you are getting 24 volts and the control is not turning on the fan then the control is bad. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. First and most important, Please make sure your electrical power is turned off before trying to repair or inspect any type of electrical appliance. If this doesn’t resolve the issue, you may need to replace your thermostat. The first thing to do is check the relay or voltage from the board. Two hot wires which produce 220 volts and one neutral wire. One of the most common issues with a furnace blower fan is the inability to start. This is so useful and it’s very informative. Purpose of the Fan Center Relay: The purpose of the fan center relay is to provide a low voltage control (24 Volts) to control a relay that can be used to control two-speed blower motors and auxiliary circuits in heating or cooling equipment.Many of the newer furnaces do not have fan center relays, but many of the older furnaces and some new furnaces still do. When this happens, your main concern is to get them running again as soon as possible. Your furnace blower fan not starting can have a few causes as you see here. I’m at a complete disarray. Steve. If you are not getting 220- volts to the blower motor then you will know that you have a bad blower relay or sequencer. Power in and out of capacitor. If the furnace starts, the problem is either with the thermostat wire or thermostat. One of the most common problems with furnace fans is a bad blower relay. Questions of a Do It Yourself nature should be A furnace is an intricate system akin to a human body, and when something’s amiss, it will first give you small clues like a non-functioning thermostat. Here are the links: https://arnoldservice.com/problem-why-i-am-not-getting-24-volts-to-the-contactor-where-does-the-24-volts-come-from/ and https://arnoldservice.com/problem-my-24-volt-transformer-continues-to-burn-up-this-is-the-second-transformer-what-could-be-the-problem/ I hope you can easily find and fix the problem.

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