The drip pan is usually found under the cooling coils, connected by plastic drain tubes. If Service Experts Heating & Air Conditioning installed your Nest Thermostat, please feel free to call us at 866-397-3787 or schedule an appointment online. The E73 error on your Nest thermostat indicates that there is no power detected to the Rc wire. If the filter is dirty or clogged, replace it. PLEASE NOTE: Do not try to restart your thermostat while its still connected to a computer for charging. Otherwise, use your thermostat or the app to control heating. Your HVAC system might have multiple breakers throughout the circuit, so ensure all of them are turned off. Jake. One such error is the E73 error which indicates that there is no power detected to the Rc wire. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. RobotPoweredHome.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. This is common as a lot of AC units fail during the summer due to hotter temperatures.

A 24 VAC voltage indicates that your wiring is fine and that the problem is within the AC unit itself. warning from Nest that your furnace is shutting down. I detached it and charged it for 2 hours and rebooted with an update. It also, won't be able to follow other thermostat settings. After around 10 minutes of charging, detach the Nest Thermostat from the USB cord. 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. Maintaining proper airflow is paramount for your HVAC system to function properly, and a clogged air filter can severely limit the amount of air flowing through the cooling coils, which can, in turn, freeze and shut the system down. In this case, contact Google Nest Customer Support and inform them of your problem. To fix this error, check your wiring, air filter, drain tubes/drip pans, and HVAC fuse and ensure that all of them are working correctly. I wanted to follow up and ensure you are good to go. If your Nest Thermostat is off and wont turn on, take the thermostat off the base and charge it using a USB cable plugged into a wall charger or a computer. However, there are a few errors that may seem almost impossible to fix. A couple of weeks ago, I found my Nest thermostat starting to show issues. Manual will be automatically added to "My Manuals", Thermostat Google Nest Power Connector Installation Manual. Locate the air filter on your system, usually found behind a grate along the walls or ceiling. What to do if your Nest Thermostat has become slow, unresponsive, or wont turn on. Insert the wire back into the Nest connector while ensuring that the connector button stays pressed down. My recommendation is to return it for full refund. Once it has completely restarted, plug it back in to finish charging. I have a problem happening right now.

So dont let one complication get you down. When this happens, your AC or heat pump will shut down to prevent a water overflow, causing your HVAC system to stop sending power to your Nest thermostat, which can cause it to display the E73 error.

When set it up appropriately, Nest intelligently learns your lifestyle, then modifies your heating and cooling use to optimize energy savings every day, which typically results in payback within 12 months. Please let me know if youare still having any trouble from here, as I would be happy to take a closer look and assist you further. Multizone heating system (forced hot water) with two Nest E's on other zones. You should be be ready to go at this point, but if you're done with Nest and want to switch your thermostat, you can see our. In some cases, this can cause your fuse to burn out, cutting the power supply from your HVAC system to your Nest thermostat. First thing tech said when he arrived was "you have a Nest thermostat, correct?". Upon replacing the fuse, ensure that you reattach any panels you removed earlier before powering the HVAC system back on. Nest thermostat is blinking yellow/green and keeps shutting off.

Call heating company for PM b/c I assumed the problem was with boiler. In case you do find water, it indicates that there may be a clog. Make sure you mention all the different troubleshooting steps you implemented. Notified Google and then sent me new baseplate (arrived last night and installed - no fix. To resolve this issue, follow these steps: Usually, during hot weather, your AC has to work extra hard. Contacted them again this morning and just went through 2 hours of painful chat troubleshooting with totally useless reps (Madison and then Enzo). Remove the Rc wire and examine it. After going through different articles and forums online, I compiled this list of troubleshooting options. Detach your thermostats display from the base to reveal the wires connected to it. Ran heat through May, then AC and Heat into June until we went to straight AC for summer. Best regards, Make sure the wire isnt corroded or painted over. Nest recommends recharging and restarting your thermostat to fix the glitch and get it up and running again.

Sorry for the late reply. Installed Nest Learning on 1 April. 2022 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. However, others like checking the cooling coils and drip tubes are quite complex, and it is recommended that you seek the help of an expert. When I checked the thermostats display for any of the usual blinking lights, I saw the E73 error message and immediately decided to look it up online for some possible fixes to this problem. Same exact issues). For a quick summary, keep on reading: Nest Thermostats that were updated at the end of 2015 or beginning of 2016 to software version 5.1.3 or later may have some issues, including becoming unresponsive, not effectively charging the battery, or turning off completely.

This helps them get a better idea of the problem you are facing and allows them to get the help you need much quicker. On the HVAC system control board, locate the HVAC fuse. Press the thermostat ring to bring up the Quick View Menu. I'm done with having a teenager in their basement ask me if my house is powered and calling it support/troubleshooting. Ensure that there is no water in the drip pan and that the drip tube is not clogged. Check online or your HVAC systems water guide to get help cleaning your clogged drip tube. How to manually turn heating on or off when thermostat cant connect to heat link, How to manually turn heating on or off when, your Nest thermostat can't connect to Heat, If you can't control heating with your Google Nest thermostat or the app, the Heat Link and, thermostat may be disconnected. If you have any questions, please feel free to create a new post. Ensure that it has at least 1 mm of copper exposed and that the copper is not bent. You can press the Heat Link's button to turn heating on and off. Nest turned off again and on the charger. Signs of this problem include the following: the thermostat being offline in the Nest application and disconnected from the Wi-Fi, the thermostat alerts you that the battery is low and it needs to shut down, the thermostats animated properties are slower than usual, the thermostat shows a notification that says, Please remove the thermostat from its base, then reattach it;, the thermostats display wont light up and unresponsive (you may also observe a blinking red or green light above the display), the thermostat cant control the corresponding heating and cooling unit(s). You will see other posts about this across the web.

You can also look for any signs of water damage like rust that can indicate earlier water presence. If you have tried both of these processes and the Nest Thermostat is still giving you trouble, you will need to bring in some experts. He performed the same troubleshoot you did (W to Rh wire - triggered heat).

In this article, I will tell you about all the different possible causes that can cause your Nest thermostat to not detect power to the Rc wire.

The most common issue that causes the E73 error is improper or unsecured connections.

To be thorough, you can perform the same checks on the other wires as well. Testing heating system from Nest Learning on 6 Oct. Taco box just kept clicking. For example, if you have an, OpenTherm compatible system, manual heating mode will not allow your boiler to.

You were smart to invest in a Nest, because a smart thermostat is still one of the top investments in your home that you can make. If you find it burnt or discoloured, it is damaged and needs to be replaced. Turn your breaker back on to bring back the power. Best regards, What to do next??? After an hour of charging, unhook the Nest Thermostat and reattach it to its base. Googles Nest Thermostat is undoubtedly among the top programmable thermostats available on the market. Usually, the steps above are guaranteed to fix the E73 error. Navigate to Settings and select Technical Info.

Jake, It has been a few days since the last reply, andI am going to lock the thread at this time. Shut off power to the HVAC system by turning off the breaker. However, if the problem is frozen cooling coils, allow the coils to defrost before using them again.

Manual heat mode will continue to heat your home until you manually turn it off, even if, If your thermostat controls hot water, your hot water will also turn on when you turn on, When manual heating is on, your system won't follow your regular schedule. Next, select Power and look for the number labeled battery. So what can you do if your Nest thermostat says no power to Rc wire? Insert the Nest thermostat back into the base and wait for it to power back up. Press the button again to manually turn off heating (press twice for Nest Thermostat E). Disconnect your HVAC system from power by turning off your breaker. You can only turn on manual heating if Heat Link is disconnected from your thermostat.

Nest Support has published an instructional page with the very convenient title . There are simple troubleshooting methods that you can try yourself, like checking the breaker box and ensuring that the AC breaker is on. Best regards, Jake, I want to ensure you are good to go, and everything is working properly. Using a voltmeter, test the Rc wire to check that the voltage across the wire is consistent. And, Nest is still one of the only thermostats under $300 on the market that does this. If you have a Nest Thermostat you probably read about the recent issues and may be living in fear of being left without heat in the dead of winter. The Nest thermostat is extremely easy to set up and use, and most of the errors that may pop up are easily fixed. Enter us! Examine the fuse. Please let me know if you are still having trouble, as I will be locking the thread in 24 hours due to inactivity. Press the button on your Heat Link to manually turn on heating: Nest Thermostat E: Press Heat Link's button twice, 3rd and 2nd gen Nest Learning Thermostat: Press Heat Link's button once. If the unit has turned on while charging, shut it down and then turn it back on again, manually restarting the system. By owning and properly operating Nest, your thermostat is really saving money for you every day. It would shut down automatically, the screen would go black, and the air conditioner would not cool the house. The air filter can also be located inside your furnace, and in that case, you will have to turn off the power at the breaker first. Disconnect the Rc wire while maintaining all the other wires as they were, switching the thermostat to heat-only mode. Service Experts Heating & Air Conditioning. If you have trouble finding it, refer to your owners manual. I will also discuss how you can fix each of these potential issues to get your Nest thermostat back up and running again. For the best experience on our website, please use one of the below browsers: Get a new, high-efficiency system for one low monthly payment. If you get them, stop the chat, pull the Nest out of your house and get another brand.

Attached and turned on briefly but once I attempted to turn on the fan, it immediately shut off again and gave me a countdown to cool.

If the cooling coils are located behind a sealed panel, do not remove the panel yourself as the system may not work properly without the seal. It is recommended to replace air filters once every 90 days to prevent issues of this kind. To troubleshoot Nest Thermostat no power to RC wire, check your wiring, air filter, drain tubes/drip pans, and HVAC fuse and ensure that all of them are working correctly. Because of this, your Nest Thermostat will Not Cool, and youll have to bear the stuffy weather. You can check your wiring by following the steps below: Another common issue that can cause this problem is a clogged air filter.

Sometimes, the drip pan or drain tube that is supposed to carry condensed water away from the HVAC system can clog up, causing water to back up. For complete instructions, see their Nest Support page. Nest thermostats usually charge within half an hour when charging via USB but can require up to 2 hours to fully charge if the battery has been completely drained. However, if none of them work for you, it may indicate a problem with your Nest thermostat. In case the system has multiple breakers, ensure they are all turned off. (They didnt explain why, but if they say dont do it, DO NOT DO IT.). If your Nest Thermostat will turn on but you cant control it or its acting sluggish, try manually restarting it and turn the thermostat off and then back on again. Cut off power to the HVAC system by turning off the breakers. Also, do not let this matter scare you about your Nests reliability. 2022 Service Experts, Service Experts Heating & Air Conditioning, and the Service Experts logo and design are registered trademarks of Service Experts LLC and used under license by SE Canada Inc. All Rights Reserved. Locate the cooling coils; you can look for information online or in the users manual of your HVAC system.