But we finally figured out the problem. The code is a combination of six letters and numbers. An H73 error message says, 'There is a wireless connection but OpenTherm is not detected. Begin thermostat setup with the app to connect it and your Heat Link to your account again. Your thermostat wasn't first added to the Google Home app, Your thermostat is already paired to the maximum number of 3rd party apps, Your thermostat shows a "Matter linking is currently unavailable" messages. e will share solutions to all Nest Thermostat error codes to save you from getting cold.Nest thermostat is quite a popular and advanced HVAC Add all the respective wire settings and make sure you're not left with any unconfigured wires. An HVAC professional can help determine if your system needs repair. The Google Nest Thermostat E is designed for DIY installation, but some systems are complex and difficult to set up correctly. 3. Press and hold Heat Link's button for 20 seconds. Important: Protect yourself, your thermostat and your system. Too many wires detected. E32 Troubleshoot a TD003, TD004, TD009, TD018, TD023, TD027, TD028, or TD030 help code for Nest thermostat. Check that your thermostat is awake by pressing or tapping the edge. Your Nest Pro may need to install an additional Fil Pilote diode (sold separately) depending on your current system. You'll see this code if the wires in your thermostat weren't configured properly in the Home app. Tell us more and well help you get there, Reset the account connection on yourthermostat. E55 If the wires are in the right Heat Link connectors: Check that each wire is fully inserted into its connector and that every connector with a wire is drawn as shown. W1orY1wire is required. Restart thermostat setup in the Nest app. After each step try to add your thermostat to the app. You may need to strip the wire ends. Try flipping the switches that control power to the Heat Link and your thermostat off and then on again. After each step try to set up your thermostat in the app. Press the button on your Heat Link to turn heating on or off while we work on your thermostat. There may alsobe an OpenTherm logo somewhere on your system. Nest thermostat help codes that begin with the letter E are typically caused by miswiring the thermostat during installation, they can also be caused bya worn part on the systems control board which will require service by a professional. So it can be helpful to double check that the boiler and the breaker switch connected to the boiler are on, and that the boiler has power. Old Thermostat works fine, Replacing to NEST thermostat, there's wiring O/B slot while the old thermostat has their own O and B seperate wire. E12 This smart thermostat can learn your preferences and automatically make adjustments. TH017 Your thermostats display may not be connected to the base and unable to receive power. Works with compatible Nest thermostats [1]; the sensor tells the thermostat what the temperature is in the room where it's placed and the thermostat uses that reading to control when the system turns on or off to keep that room the temperature you like.Google Nest Thermostat Compatibility: Communicates temperature to compatible Google Nest thermostats up to 50 feet away. In some homes its common to turn off the boiler for the warm seasons and heating is no longer needed. Here are the steps to follow to factory reset a Nest Thermostat. An H155 help message on your thermostat says 'Your Heat Link went offline when the batteries were low'. On the thermostat screen, select. H158. Change the thermostat to the heat-only mode by disconnecting the Rc wire while leaving the other cables connected. Note: There are specific troubleshooting steps for certain errors in some steps. Your Nest isn't electrically detecting your Rc wire, but one is connected to the Nest base. How you troubleshoot this code depends on if your thermostat is on a stand or installed on the wall. Learn more about Fil Pilote and Nest. TH011 If there's a wire (usually orange) in your thermostat's O|B or * O|B connector you have a heat pump. One possible reason is that your system needs maintenance. Checked that the temporary network was 2.4 using Wi-Fi analyzer where as the hub was configured for 5g. E74 Normally, Heat Link should automatically reconnect to your Nest thermostat after you reset it to factory defaults. Remove the display from the base to see all the wires attached to your thermostat. Then turn power to your system back on. Had a thermostat working fine, White-Rodgers model # 1F78 NON-PRGM. Another possible reason is that you live in an area that experiences very cold temperatures in winter. N159, N253 After each step try to set up your thermostat in the app. Important:Be sure to turn off power to your system at the breaker, fuse box, or system switch to protect yourself and help prevent damage to your system. If you followed the steps above and you still see the message on your thermostat, contact support for more help. Your Nest thermostat can't connect to Wi-Fi. You can change this setting on your thermostat: On your thermostat go toSettingsEquipment. The code is a combination of six letters and numbers. Start the troubleshooter. You can also contactalocal HVAC professional to help resolve your issue. Replace the thermostat display and turn your system power back on. 1st gen, Nest Learning Thermostat Try turning off these electronics one by one to see if your Google Nest Learning Thermostat and Heat Link are then able to establish a wireless connection. I have the exact same issue and I couldn't solve it following the steps provided by Nest. An H157 error message on your thermostat says 'You need a Heat Link to control your heating with this thermostat'. Then, let go of the ring. While an H73 error most often happens during or right after thermostat installation, it can sometimes occur after youve been using your thermostat for a while. Restart any other Google Nest devices set up in your home. Note: The troubleshooting steps below should work for the standard Nest and the Nest Learning Thermostat, with only some slight differences. Use this picture to enter the wires into the app. E56 If you're still having trouble, go on to the next step. Check if the connection at the center is broken. W2/AUXdetected by itself. In some cases, you may need to enter the Heat Links pairing code into your Nest thermostat. Hold down the Heat Link's button until its light turns off. Restarting your Nest Thermostat and HVAC system. In addition, the Heat Link's status light will be yellow when its disconnected from your thermostat. Press the display onto the base until it clicks into place. You'll see this code if your thermostat can't detect your system's OpenTherm. If this is the case, your system isnt Nest compatible and you should reinstall your old thermostat. Reopen the Nest app and restart adding your Nest thermostat. TD004 Use the wiring diagram the app gave you during setup to move the wires to the right connectors. These steps cover the following help codes:E10, E30, E66, E80, E116, E160, E196, E296, M13, N254, and N262. E79 Troubleshoot Nest thermostat help codes; Troubleshoot a Nest thermostat overcurrent or E help code; Troubleshoot E10, E30, E66, E80, E116, E160, E196, E296, M13, N254, and N262 help codes; Troubleshoot thermostat power issues during hot weather (E3, E4, E23, E24, E73, E74, or E195 help codes) Troubleshoot a "No power" alert on the Nest . There may also be an OpenTherm logosomewhere on your system. Remove any Y wires (Y, Y1, or Y2) from the thermostats base. Power wireRcdetected. E41 Follow the steps in the app to update your thermostats wires. I installed NEST and tried run, but the test show it runn You may see one of these help messages while running a System Test after you install your thermostat. Turn the ring to "Thermostat", then press to select. 24V baseboard systems are much less common so double check your system voltage. You'll see this code if there is an issue with the wiring inyour thermostat. The Nest thermostat has an overcurrent error. 3rd-gen Heat Links have the pairing code on the bottom; 2nd gen Heat Links have the pairing code underneath the cover, near the left screw hole. On your HVAC system, look for a removable access panel. Either your system is incorrectly wired so that OpenTherm isnt functioning, or your system isnt OpenTherm compatible but the OpenTherm option was selected in the Nest app setup. After the device is added to your account in the Nest app, you can reattach the display to the backplate and turn on power to the HVAC system. There is a dehumidifier or humidifier connected to your system. E183 You can also double check that the socket is delivering power by plugging in a lamp or other electronic device and turning it on. If your thermostat controls your domestic hot water tank, your hot water will also turn on. Get an answer from an expert on the Google Home Help Forum. You can also contact a. If you didn't see a code, your thermostat will show you a link to let you know which wire you need to check. N77 trying to install nest thermostat, have a goodman furnace. An energy-saving event defined by a Nest energy partner is in effect. Heat pump systems can heat when they're supposed to cool (or cool when they're supposed to heat) if the O|B wire isn't configured right during thermostat setup. An overcurrent help code is likely caused by a recurring problem and wont go away by itself. Next, addyour thermostat back to the Home app. If you see this code, your thermostat can't connect to your Heat Link to control your heating. No errors or what not. Turn off all power to your home at the breaker box, fuse box or system switch. Remove the fuse. After each step try to set up your thermostat in the app. Step 3. Review the apps connected to your thermostat. Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Free shipping for many products! Nest Thermostat says "No Power" when trying to cool the house. TD016 E91 Find many great new & used options and get the best deals for Google Nest T5001SF White Display Built-In WiFi Smart Temperature Thermostat at the best online prices at eBay! Turn power to your system back on at the breaker or fuse box. Touching exposed wires can cause a short circuit and damage your thermostat or system. After you move the Heat Link, turn the power to your system back on. Select the help code that you see on your thermostat for specific troubleshooting steps to fix the issue. AStuf 4 yr. ago. E164 Release the button and wait for your Heat Link to restart. Press and release the ring to turn it back on and complete the restart process. Follow the on-screen instructions to scan the QR code and add Heat Link back to the app. If you're installing the Nest Power Connector and you get an E297 help code, your thermostat needs an update. How to resolve. If your thermostat is showing another code, go back to the beginning of this troubleshooter to troubleshoot that code. If you see an error message on your thermostat that has a code beginning with H, N or T followed by a number, here are some steps that you can take to help fix them. E196, E255 Select Network and perform a reset. 08-21-2022 08:11 PM. Turn power to your system back on at the breaker or fuse box. An H1 or H71 error message says 'Nest cant connect to Heat Link and wont be able to control your heating'. A help code should also appear, such as M20 or E298. You can manually turn on your heat with the Heat Link while you troubleshoot so you can stay comfortable. Go to Troubleshoot E10, E30, E66, E80, E116, E160, E196, M13, and N254 help codes to troubleshoot this issue. Call heating company for PM b/c I assumed the problem was with boiler. If you're testing a radiant system, electric baseboard heating, or a system with radiators, it typically takes a while before you can feel the floor baseboard or radiators getting warm. Check for loose wires. The screen will turn on as it finishes. Thermostat wires with incorrect labels. Rotate until you see the Reset option. Look at the table belowand select your specific help code then follow thetroubleshooting steps. 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