If you can do basic house electrical work, youll get through the problems with our basic fixes in the article above. Check your owners manual if youre unsure. If any one of the following is faulty then chances are that you might see this error on your thermostat's display. If this sounds familiar, Few homeowners rejoice at the sight of snakes in and around their house. Tap again to open the Menu view. It was just a matter of charging it via a USB cable just like charging a cell phone. You can describe your approaches to resolving the problem and how your thermostat is behaving now. Check the fuse. The main drain line that drains the AC from the unit to outside the house was clogged backing up water in the drain causing the float switch to activate. If it does not operate in an easy manner, you may need to have a technician come and replace the switch. Plastic drain tubes link the drip pan to the cooling coils located beneath the drip pan. Dont be afraid to contact a professional if you have any concerns. Manage Settings My Nest thermostat indicated that there's no power, showing a problem with the red wire indicated in the photo. Get free, zero-commitment quotes from pro contractors near you. Your thermostat is connected to a system that requires a C or common wire, but that wire isn't. After a few moments, use your thermostat to go to the Menu view. Helpful Links: About us Contact us Privacy & Cookies Policy SiteMap Regardless of which one you have, if theres only one, it powers the entire HVAC systemheat as well as air. Your thermostat may disconnect from Wi-Fi if its not receiving power, even if the battery level is good. After an AC technician visited our home on two separate occasionsstill not finding the cause of this intermittent problemwe contacted a local HVAC technician who specializes in smart home technology. Turned the circuit breakers on and off to the heating and cooling units, 2. All of them will be covered in this article. The Nest thermostat is extremely easy to set up and use, and most of the errors that may pop up are easily fixed. Your furnaces air filter may be inside, in which case youll have to cut off the electricity at the circuit breaker first. It could be a bit more complicated than that, though. In short, if your Nest Thermostat says there is no power to the RC wire, this could be due to: incorrect wiring, a faulty air filter, obstructed drain tubes/drip pans, and an inoperative HVAC fuse. You do not have permission to remove this product association. Also anytime there was a power outage, when power came back, the nest was showing e73. Check the voltage across the Rc wire using a voltmeter to ensure it is constant. (2023), What is Ring Chime? Having the same issue. Clean or replace the filter if its blocked or unclean. Moreover, we would suggest you check the rest of the wires too. This guide will show you how to fix any issues that may occur so that your Nest thermostat resumes functioning normally. Web there are several ways to identify your thermostat wires: And the 2 is a c. This will ultimately result in no power supply to the Nest thermostat, thus causing error e73. I know I'm late to the game here, but here's something I found while installing a couple of Nest thermostats today. This would then freeze up the clogged substance resulting in your Nest shutting off. He discovered his passion for DIY projects and home improvement there. Clean any mold or mildew that built up on the pan. Samsung TV Volume Not Working or Stuck [Solved]. GooglesNest Thermostatis unquestionably one of the best programmable thermostats on the market these days. We discovered that our Lennox HVAC's air handler unit, which is located in our attic, has a condensation drain line that leads to the outside of the home. But you need a C wire for the thermostat to run properly. Shut off power to the HVAC system by turning off the breaker. Rc wire not recognized. The answers are not fixing the problem. Troubleshoot a "No power" alert on the Nest Thermostat (E298 or M20 help code), Tell us more and well help you get there, troubleshoot when your Nest thermostat wont turn on, Check whether a C wire or spare wire is available. On my system the fuse is on a small circuit board inside the HVAC unit. On your Nest Thermostat, go to Settings Equipment Wiring info. Even if the power to your HVAC system is off, Nest may still work intermittently because of its internal battery. All other steps checked! Disconnect your HVAC system from power by turning off your breaker. ago. Immediately check air handler to find out where loss of voltage is. Shut off the power to your HVAC system at the breaker. Connect the wire back to the Nest connector when pressed down. Inspected the copper wire going in an out of the Fc space on the thermostat. The main drain line that drains the AC from the unit to outside the house was clogged backing up water in the drain causing the float switch to activate. Check to see whether the wire has been rusted or covered with paint. Power can't flow if connections are not secure. The HVAC system is experiencing some other issue that prevents it from sending power to the thermostat wires. Hello, I am trying to install a NEST 3rd generation. I'm having the same issue. The Nest display reporting the "no power to RC wire" issue. No Power to Rc Wire: Troubleshooting Usually, this message pops up when the wiring is incorrect or loose. Then, do the following as needed: Strip the wire to expose " to " of copper. Cut off power to the HVAC system by turning off the breakers. Take a look at the fuse. (For Insurance), Lost Schlage Programming Code? 2023 Robot Powered Home |, Best Smart Vents for Nest Thermostat You Can Buy Today, Nest Thermostat No Power To Rh Wire: How To Troubleshoot, Nest Thermostat Battery Wont Charge: How to Fix, How To Connect Hue Bridge Without Ethernet Cable. Once the water drained it left the float switch and AC came on. They will diagnose the problem with your gadget at the earliest and guide you with the right solutions. Step 3. Clogged drain tubes have also shown this error in e73 in many ways. The Nest error e73 is a common problem caused by no power supply to the Rc wire. Disconnect the electrical supply to your HVAC system by shutting off your breaker. Your shower may be draining slowly if it's clogged with hair. These systems are incompatible with Nest thermostats. It's not installed in a normal fuse holder, it's installed using two female spade terminals. Remove the thermostat display from the base to expose the wires that are attached to it. Remote control: Control your thermostat from anywhere using the Nest app. The fixes mentioned above are the best troubleshooting steps if your Nest thermostat detects an E73, i.e., no power fault on the RC wire. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. In my situation the fuse was corrected inserted in one of the terminals but was not in the other. Test. Your Nest thermostat may be unable to detect electricity on the Rc cable for several reasons. To confirm whether your thermostat wiring is faulty, you must deface your device and inspect the wiring. Source: faceitsalon.com. Took us a while, but we realized that the 3 Amp fuse on the circuit . At first glance, an E73 error can seem overwhelming as it brings down your Nest thermostat completely, rendering it unusable until the error is fixed. "WARNING REPORT. If the fuse is blown you will have a constant E73 error. Next, look for any dirt, dust, or clog but ensure to do so gently. IMAX theaters are known for their massive screens, immersive audio, and state-of-the-art projection technologies that deliver an unparalleled [], The film industry is one of the important industries of a country. Nest thermostat has an error message reading NO POWER TO RC WIRE DETECTED. You could have either an Rc or an Rh wire. Nest thermostat says no power to RC wire detected I have a Goodman furnace, and my Nest Thermostat says "No power to the Rc wire detected." The wires were not touched, and they are working fine. Other than that I am at a loss! This will help them understand the issue in a better way. Click on Technical Info under Settings. Detach your thermostats display from the base to reveal the wires connected to it. (If your Nest Thermostat battery is low, check this guide). So, are you here because your Nest showing an e73 error message, and you dont know what to do next? Disconnect the Rc wire while maintaining all the other wires as they were, switching the thermostat to heat-only mode. After going through different articles and forums online, I compiled this list of troubleshooting options. Are you looking for the perfect thermostat temperature so that you're not wasting electricityand money? Fixing Nest error e73 - No power to Rc wire detected Josh Sherman 08 Aug 2021 3 min read Personal It's been heating up in Texas recently, even more so when I had discovered that our Nest unit was giving us grief about the "Rc wire" not being detected. How long does the Nest thermostat take to charge? Locate the drip pan. When I encountered the problem a few days back, I still needed to learn what it was and how can I fix this. I got an error mesh saying no power to RC line. This is true. This content is accurate and true to the best of the authors knowledge and is not meant to substitute for formal and individualized advice from a qualified professional. His testing experiences and several kinds of research made him progress in this field. This usually happens because the wire isnt properly connected. Now see if theres water in the drip pan. Without a C wire, the thermostat isnt receiving continuous power, and you can expect all sorts of glitches to occur. Hoping someone from nest responds as this appears to be an issues others have had over time. Its important to note that, while the R wire powers your HVAC unit, Nest is powered by the unit while its running. Youll have to put up with stuffy weather since your Nest Thermostat wont cool down. Home/Away Assist: don't heat or cool an empty home. Googles Nest Thermostat is undoubtedly among the top programmable thermostats available on the market. To get the most out of Google Home, choose your Help Center: U.S. Help Center, U.K Help Center, Canada Help Center, Australia Help Center. Model GMS80704BXCC. We are very thankful to you if you use our links! (7 Easy Steps). Key Differences Between IMAX vs Others (2023), link to IMAX vs Standard: Difference Between Imax and Standard (2023), Can Wifi Provider See Your History on Phone? If you cant find your HVAC systems cooling coils, check online or in the user handbook for directions. Before checking the wiring on your thermostat, it is most important that you turn off the power to your HVAC system at the breaker. Settings Equipment wiring info this would then freeze up the clogged substance resulting in your Nest thermostat is extremely to... The earliest and guide you with the right solutions for the thermostat to run.! Across the Rc wire DETECTED turned the circuit contact a professional if you cant find your HVAC is. Pops up when the wiring if you have any concerns for several reasons be draining if. Cable just like charging a cell phone Rh wire DIY projects and home improvement there the market, while R... Charging it via a USB cable just like charging a cell phone does not in. 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