What do you think? That could be because the pressure switch isn't being satisfied or it is failing. I have a variable speed 2 stage AS furnace. Thanks for answering question above.. im waiting to gear back from friend. Before you call out the pros, why not take a shot at fixing that furnace yourself? My furnace pilot light is on, red light and yellow light are steady on but I'm get nothing but cold air. In terms of the fault that might be occurring, I will read a bit more to understand how i would find it. Locate and correct gas interruption. What else could be the cause of this? Generally speaking, this means there is a problem either internally within the furnace system or with the thermostat it communicates with. What could be the problem? Read: Why Does The Room Temperature Not Match The Thermostat Setting? Inspect the wires for corrosion or a bad connection. When I call for heat, the blower motor kicks on, the igniter will NOT light. Since the blower is kicking on immediately, something has failed. I cleaned the flame sensor and now nothing. I do not have these memorized. How do I fix this fault? The lights are in one of four states -- off, on but not blinking, blinking steadily and blinking in a pattern. I have a rudd force air furnace heater..thats warm up a little then wont start back again unless i switch button to off to heat again..cant find where filter is located. This process will repeat until a flame is sensed. Penny - If the stat is off then you shouldn't have heat but is the fan set to "on"? The ignitor does not appear to light whatsoever, I hear no clicking, smell no gas. It's usually on the doors that you remove from the front. I would visually inspect that area to make sure nothing got sucked into the fan, and that the fan wheel isn't broken/wobbling/rubbing. This complete Goodman furnace troubleshooting guide gives you precise, step-by-step instructions on how to troubleshoot and fix every potential issue with your furnace. Answer: It could be or it could be the harness/connector itself. One thing I can say is that if the unit was registered, then you should still be under warranty. Furnace acts like its dead. The tech replaced the flame sensor. Maybe a limit? In this case, its usually open. Please Help!! Nine red blinking lights on your York furnace let you know the machine is experiencing a grounding issue. I'd check the fuse on the board. These are just guesses of course but all things I would be looking at if I were there. Any suggestions? What could the problem be? The pressure switch just confirms that the inducer is venting properly. My furnace is clicking on but the auto fan does. Be sure you turn the power to the unit off before putting your hands in there. I have power going to the circuit board, but there seems to be no power going to the blower motor or anywhere else. The pilot lights and stays lit. That is my guess. For someone who is familiar with taking things apart and putting them back together I'd say yes, it's a pretty easy task. Check the ignitor. Answer: Typically you'll see bad power or no power going from point A to point B. If you have no idea how to work with wiring, then you should definitely invite a professional to fix the problem. He replaced it but the furnace did not fire up. We Can Help, Here's How. Answer: The furnace should cycle properly to the point of blower coming on before failure so if the capacitor is bad, I don't think it's the only issue. Check for an open or leaky gas valve. A scenario like this means that the furnace has overheated and is most commonly the result of a dirty filter or blower wheel. Answer: Well since you've replaced the sensor I'd check the hi limit or the board. Thank you for reading. If any issue seems like too large of an undertaking, call anHVACtechnician to help. I have a old ruud unit 1994 and i the light that says power is not on. Probably a bad element or going bad. Answer: You really shouldn't be able to smell gas in your furnace. Thanks. The red blinking light can be an indicator of a number of problems or malfunctions with your heating system, so it is best to act fast if this happens. What could be the cause of this? What Are Codes for the Lights on a Rheem Furnace? | Hunker We have a Coleman electric furnace and it clicks like its turning on but its not actually kicking on to blow airand it smells like something is burning when its trying to click on. Connect your jumper wire between the "R" and "W" terminals. It just hummed. Pamelarenae - I wish I could offer more help and given what you've told me I would say there is definitely an issue and the landlord MUST have someone come back if it's "black as coal" because it's not normal or healthy if it's spewing it all over the home. See if this article can help to see. Choose us "When it's worth doing Wright!" I know he has natural gas and has commented on how dirty everything gets in his home very fast. What to do: Check the draft inducer; check the exhaust vent. That does happen sometimes. Answer: While I cant say what the issue is for certain, youre probably resetting the board by flipping the switch. HVAC told us $1000 to fix--but I think that can't be right since it still works fine--I am thinking gas valve or thermocouple. A flashing LED light on your furnace can also be a sign of problems in gas supply. However, the fuses might be located elsewhere on the boards in the case of some furnaces. If the wires look corroded, then you would have to replace the thermostat. Your odds for getting the heat back on sooner rather than later are actually not too bad. Once you turn your furnace on, all of this material burns and smells a little. The fuse is ok, and the light is on solid. The furnace will once again enter lockout mode for 60 minutes. I did remove the flame sensor and cleaned it but I fear I may have cleaned it too much by way of over use of sand paper. The flames do not stay on long at all. I just bought the house and the a/c works, but not the heater. Answer: It may have a blown transformer, or perhaps the little three-amp fuse that is often on the board could have blown. Its natural gas and he does not believe duct work has been done. Range should be +/- 10%. If the fire is on, the air cannot be cold. The pressure switch helps ensure that the gases created during the combustion process exit your house and do not stay in the system. The most common cause for this is a leaky gas valve. Help! Blinking Red Light On Furnace | Furnace Error Codes - ARS Your furnace is not able to operate as it cant detect the signal coming from the thermostat. What happens when it doesnt work: - the thermostat places the order - the fan starts - the surface ignitor begins to glow, then goes dark - the fan continues. It's not nearly as accurate as newer digital models, and since it contains mercury, it's not safe. Question: If the circuit board is bad, would the furnace work at all? I take a beating sometimes from guys who feel I'm taking business away from them and well, I suppose I do, but my intent is to help those who can't afford to pay $150 or more to come clean a flame sensor. Can there be something preventing the furnace from kicking into the 2nd Stage? Simply pull the fuse off the board and look to see if the link inside is burned and/or broken. The repairman says it needs a new burner. Question: My furnace was working fine until this weekend. Answer: The igniter is powered by the board so that is one possibility but if it's glowing and just not getting gas to light then that's a different issue and has a few possibilities. Diaphragms cant be activated as easily if they have to fight gravity. I removed the gasket it fell apart once I touched it, cleaned up the area and reseated with high temp silicone sealent . These are a couple of common suspects. My furance flames come on-but blower wont run-unless I keep turning it on by thermostat switch?? Question: I smelled burning wires, and then my ten-year-old trane single cycle furnace stopped working. Here is everything that you need to know. Ive got a solid red light on circuit board. It does sound like that may be the issue still. In the middle of the night, it stopped. Most reputable thermostat makers will provide very clear directions with their units on how to install them, and it really isn't too difficult for the homeowner to do themselves if you take your time and follow the supplied directions. Emily is a copywriter with over five years of experience in crafting content for the home renovation and remodeling industry. Whether it's working just fine or if it's completely kaput, this light is the voice of your furnace. Either the draft blower is operating, when there isnt such a need, or there is an issue with the pressure switch (its open). If I manually light (light paper and put in front of the pilot) the burners will light and the furnace will run for 20 minutes and then shut off before reaching the set temperature. Pressure switches can be finicky and dont always just go out. Manually shutting off the thermostat and turning back on gets the furnace to turn on and blow hot air again. $1000 is a nice down payment on a new unit and there is no repair I can think of that would cost that much unless it was to replace a heat exchanger (which again, I would rather do a furnace for that money) or a complete overhaul of the parts there which makes me leery that he doesn't know what the problem is so just decides to replace everything. Just answering your question that yes, a bad board may still allow the furnace to run intermittently. I wrote an article about cleaning the flame sensorI hate to say it may have just been dirty. What Is the Green Flashing Light on the Front of My Trane Furnace When I looked at the temperature on the thermostat it read 61 when it was set at 68. Or by jumping it out and see if it fires then. The furnace itself is giving code of "Pressure switch stuck open". Question: After the furnace has been idle, it frequently (75%) will not provide heat when the thermostat places an order. It is a part of the GRM Series, model # RGRM-07EAMES. If everything at the stat is off then you must have a short circuit somewhere in the stat wiring or control board. My question is, does this appear to be a circuit board issue? If not, check for flue blockage and listen to inducer to see if sounding slow or something in there. Read: Why Does My Furnace Filter Get Dirty So Quickly. This can short-circuit the device and is overall not safe (such units can easily shock you). Simply go to the furnace, remove the doors, and follow these steps: NO: Then your thermostat isn't the problem.