Nest Low Battery Fix!

Рет қаралды 777,461

Күн бұрын

Favorite Smart Home Devices: www.amazon.com/shop/onehoursm...
USB Micro Cable: amzn.to/2WHKyNN
Common Wire Transformer: amzn.to/3Ij5Ucf
Nest Room Sensors: amzn.to/35N4u4A
In this video we teach you how to fix Nest Thermostat low battery issues and Nest Thermostat low power issues. There are several things that could cause your Nest Thermostat to have a low battery. Typically Nest low batteries are caused by your HVAC system not putting out enough power, or by an issue with your HVAC system that has cut off the power supply to the Nest Thermostat. A Nest low power issue can also be caused if your Nest has sat in the box for an extended period of time.
Nest Common Wire Installation Video: • Nest Common Wire Hack!...
Nest Common Wire Transformer Installation Video: • How To Install A Commo...
How To Charge Nest Thermostat Video: • How To Charge Nest The...
To fix Nest Low battery or Nest Low Power issues there are a few common ways to fix the low power issue.
1. The easiest method to fix a nest low power issue is to try charging the Nest using the built in charging port on the back side of the Nest. This will typically work for a Nest Thermostat that has sat in a box to long or the power to your HVAC system has been turned off for an extended period of time.
2. If charging the Nest doesn't work you can then connect a common wire to your HVAC system. Some thermostat wires will have an extra wire run with the thermostat wire that you can connect to the C terminal on the HVAC system and the C terminal on the Nest Thermostat. If you don't have an extra wire you with the thermostat wiring you can add another wire connected from the C terminal on the HVAC system to the Nest Thermostat.
3. If adding a common wire doesn't work your HVAC system is either not compatible or is not putting out enough power to power the Nest Thermostat and a common wire transformer might be needed.
DID THIS HELP? You can support us: www.buymeacoffee.com/OneSmart...
Our Website: www.onehoursmarthome.com/
Podcast: www.onehoursmarthome.com/podc...
My Favorite Smart Home Devices
Ring Doorbell: amzn.to/2V8rqHQ
Nest Thermostat: amzn.to/2GWbVvT
Smart Lock: amzn.to/3a5m5W0
Ring Security System: amzn.to/2Vh7Gz4
Smart Plugs:amzn.to/2EqtrGT
Router (When I installed it my internet was 3X faster): amzn.to/2XjwckX
Modem: amzn.to/2NnyBpX
Echo Show: amzn.to/2BMhpWQ
Sonos Beam: amzn.to/2EoG5X9
Amazon Cam: amzn.to/2BNfb9m
Some of the links above are affiliate links and help support his channel.

Пікірлер: 420

@jaker2187 11 ай бұрын

The fact that this is such a widespread issue should tell you all you need to know about these products

@AtChieftain 6 ай бұрын

I'm never recommending Nest again. Garbage products

@SoundOfYourDestiny 4 ай бұрын

The Nest is disgraceful trash. Even when functioning, the UI and "learning" is brain-dead and incompetent. Even worse, it's an entire computing device that you're supposed to THROW AWAY WHEN THE BATTERY DIES. Unfuckingbelievable. I have a powered (C-wire) thermostat connection, and I had to trash the Nest because the battery died and the aftermarket batteries all have hideous reviews.

@DarylSawatzky 2 жыл бұрын

Finally someone who can describe the purpose of the different wires. Seems like most HVAC guys guard this info with their life!

@danf1862 2 ай бұрын

Most people are incompetent. They're just playing the averages

@philaminanevels3901 2 жыл бұрын

That's rare that I have an issue, search for a video, and the first video I find NAILS the solution. Thanks man for putting this together. Saved my Saturday evening.

@lucineidegode1880 6 ай бұрын

Thank you soooo much!!! I am a single mother, homeowner who has to try to figure out things in my home before calling a handman. And, with your video, I was able to fix my thermostate issue

@ch0jin 28 күн бұрын

I'm sorry what did you say I got lost in your magnificent beard

@beatrizsalcedo6826 3 жыл бұрын

3am in the morning and I am listening and charging the battery right now. My hubby will be surprise when tomorrow our nest will e working great. ,,, I hope !! Thanks a million for your help

@h3cz_ Жыл бұрын

Did you end up having battery trouble again? I'm curious. I'm currently charging mine for the first time. Battery died after 2 years of use.

@dougchaffin2608 2 жыл бұрын

One of the best videos I've watched on KZfaq. Great job. A friend was having issues so I jumped on here to research the issue. I sent it to him right after the first step... that's how confident I was. Thanks!

@judygonzales1404 2 жыл бұрын

Oh my goodness, thank you! I had a low battery and have searched to see what the problem was and thanks to your video, I was able to resolve it. I'm guessing like you said, it sat on a shelf for a while because it's a brand new thermostat. Thank you!!!!!!

@jeffminnichgardendesigninc6677 3 жыл бұрын

I found a charger that would fit my Nest E and that did the trick! I would never have thought to charge the thermostat. Thank you for this very informative video.

@ea3928 2 жыл бұрын

I don't generally comment on these videos. However I had a low battery issue and I only needed to do your first step. I didn't even know you could take the face off the thermostat ! Thanks heaps.

@donghylin8919 2 жыл бұрын

Most easiest video I've found to follow for the Nest thermostats. Much clearer than trying to get results from the Nest help line, I did the settings check and found these readings...6.5 and 40I , indicating as you said the battery(s) were low. I did find a USB charger that had the correct end on it and the batteries are charging as I type. let them run for an hour or two and see if that fixes the immediate problem. Thanks for the great video...a grateful friend.... Don

@fallguy4209 Жыл бұрын

Thank you for making this video. You saved me money and time. I did the switch out with the green wire and moved it to the c spot on the nest and furnace. No error code now.

@cindysalinas9752 11 ай бұрын

We ended up exchanging this model for the slimmer version kzfaq.infoUgkx0jZ_lGlDVJhDnmagEU8gn47cmfPNlLQU because it was too wide for the only door trim area that made sense to mount it on. However, we should have just noted the dimensions prior to purchasing. Otherwise, we love the doorbell. It works perfectly, and the video is very clear, even at night.

@NickGodwin Жыл бұрын

Thanks from London UK. You got me out of a hole. I recharged it thru my computer. Missing the old days when I just had a clockwork timer that plugged into the wall. Cheers

@doribonesbonner8848 2 жыл бұрын

I was having problems through the app while away. The temps have been from low 20’s to single digits (and even a few minus degree days) so I decided to stay with my bf and save my fuel. I check my Nest app regularly when I’m not home to make sure everything is ok @ home. Several times I’ve had one (of 2) thermostats show “offline” in the app. Researched the issue & determined that it was likely a low battery. Thanks for the well done video explanation on how to charge the existing battery. I almost bought a new one on Amazon! Good thing I read reviews & one person said better off recharging rather than replacing. I would have taken my unit apart trying to figure this out. THANK YOU 🙏🏻

@PSD9737-ML 3 жыл бұрын

Fixed, thank you! Just needed as quick zap from a USB connection. Levels are all good. We're up and running!

@user-zn3nk9sk2l 4 ай бұрын

Your video nailed my Nest thermostat failure. I charged the thermostat through its android port with an old android phone charger for 2 hours: instant success. Thermostat came to life, connected with WiFi and everything works great. Thx

@antred4597 3 жыл бұрын

That plug adapter thing worked great and I just used a power supply from the DirecTV crap equipment laying around since I went to all Roku. You are awesome.

@babeyruth1 3 жыл бұрын

Wow, we're going through an insane snow storm in san antonio and our nest was dead! Had no idea if the usb charge! Thank you for doing this!!! You're a blessing!

@jamesd2209 3 жыл бұрын

We went through it too up near Dallas

@dylan4dollars514 3 жыл бұрын

Dude. You totally helped me tonight and my family is warm on a chilly night thanks to you! 🙏

@OneHourSmartHome 2 жыл бұрын

Glad to help! Great you were able to stay warm!

@joefagersten9677 Жыл бұрын

Great video and very informative. Here's my pro tip: First thing to do is check to see if one of your kids turned the switch on the furnace to the "off" position... 😅

@MrJohnJuarez 4 жыл бұрын

Helped me figure out why my nest was acting up after a long power outage. Thanks!

@colinfrewen8294 4 жыл бұрын

Absolutely worked for me. I have a nest connected to a SIME format hydronic system. It pushed out 6v to controller but uses steps down to 24v to it’s internal clock. Used your advice and drew another wire from board. Works perfectly.

@OneHourSmartHome 4 жыл бұрын

Thanks for sharing

@toddkurzhal9407 2 жыл бұрын

Great detail. Our AC unit was being replaced. Amazing how fast the power drains on the nest. Low battery would not recharge on its own on the wall after power was off for half the day. I pulled it off the wall and charged it with USB for and hour and put it back and it connected to everything and worked fine afterword.

@vincezhang8572 Жыл бұрын

Then did you pull it off again? I have a similar situation recently. We got a new AC and my Nest went out of the battery every 2-3 weeks after I charged it by usb cable for a whole night. So annoy.

@klac8500 10 ай бұрын

Thank you so much for this video! I had no idea that my Nest needed charging! Living in Florida, I cringed at the thought of no A/C. I am now going to charge mine for the first time! Thank you again for sharing your knowledge!

@jmd1327 2 жыл бұрын

You’re c terminal description was instrumentalist the success of my Nest thermostat’s successful activation. Thanks!

@BC-ml4ze Жыл бұрын

Many thanks! Been going a little crazy for a couple of weeks, but your video helped me fix the little bugger, using the fan wire as a makeshift “c” wire. When you led me to the battery and lin levels, it proved to be the culprit. Finally running well, and the nest 3rd gen didn’t end up in the pond😉

@bigt944 6 ай бұрын

i had the fan wired as a makeshift c wire too - but i'm still having low power issues. what was the culprit, and how;d you fix it?

@nicholasjnorman Жыл бұрын

Best video I have seen on this issue to date! I am going to head home from work and diagnose my low battery issues. Thanks for the help!!

@ScottishTexan Жыл бұрын

Thanks! My thermostat just went out in 100° Texas heat and this video saved my day 🎉

@tamser Жыл бұрын

This video helped me diagnose and fix my NEST issue! So thankful. I am not handy, but with an Amazon power adapter and your vidos, I wired it myself and got it going!

@davidkerner5797 2 жыл бұрын

Thank you so much! Power outage while I was out of town. Came back, and got low battery problem, I recharged it with phone cable, just like you said, and it worked.!!! You are the best!!

@rkulp Ай бұрын

Does it permanently fix the issue? Or does the power go down over time?

@adamre09 Ай бұрын

Having the same issue… power outage triggered both Nest thermostats to start having battery issue. I can charge via phone cable and that will work for a few hours, then the battery dies again. These worked together fine for 5 years and all the sudden BOTH stop working at the exact same time. Idk what the issue is. Voltage and Lin seem fine.

@nateg652 3 жыл бұрын

Thanks for the info it really helped, I was able to charge the battery. It also sent me in the direction to solve another problem, someone had accidentally turned off the furnace switch. Big thanks, very much appreciated.

@davidrichards5909 2 жыл бұрын

Excellent video, as are your other ones! Thank you. For me when installing transformer, it only worked when I combined one of the wires from the transformer in/into the terminal with the existing Rh wire, and of course the other transformer wire into the C terminal. It did not work when I had one transformer wire in the Rc terminal and the other transformer wire in the C terminal.

@ensmoken1 3 жыл бұрын

Awesome fix and thank you for helping me avoid buying another device!

@reynoldsj 4 жыл бұрын

Amazing and precise video! Thank you so much. God bless!

@OneHourSmartHome 4 жыл бұрын

Thanks for watching!

@Harambe74 3 жыл бұрын

Great explanation and options. You sir made my life easier today. Many thanks.

@OneHourSmartHome 3 жыл бұрын

Welcome, thanks for watching.

@HUTTHOME1 2 жыл бұрын

Thank you so much for all your advice, you really help me in a lot of your videos you're very smart and helpful. I love your videos continue on my friend.

@kirina91 2 жыл бұрын

Thank you, your video just saved me! I also have Ring here and the charger is compatible in case anyone else needs to know that.

@FlyLan Жыл бұрын

This video single handedly helped me fix my mother's Nest Learning 2nd gen thermostat when nothing in Google's Nest Troubleshooting site, Nest ProTech Diag pdf, Nest Community forums, or any other Google Search return could. The Event: Heating for past few winter months (NO A/C usage since October 2022). Beautiful day in East Texas, mom turns Nest "Off". Next day, 80°F+ and 95% humidity, mom turns on A/C, and leaves to run a few errands. On arrival home she realizes that it's 78°F in the house. Air Handler blowing air, air not cooled. She calls me, the dutiful son. Nest Learning 2nd Gen display in error mode with message E30 - "No Power Detected for Y1 wire". Y1 is the Air Condenser unit outside of home. In Tech Info menu, it also says that "WiFi Disconnected". Can't get out of error mode other than to view "Wiring Diagram" and the various "Tech Info" submenus. I remove display unit to check wiring, all are fully seated. Wires are Y1 (A/C Condenser), G (Ground), Rc (Cooling Power), W1 (Furnace/Air Handler), Rh (Heating Power). I go outside and manually inspect A/C and it's independent breaker, not on breaker good, flip breaker, still nothing. Go inside reinstall display unit, same message error mode, can't get out of error mode. Left. Today the A/C came on by itself and started blowing cold air. No more error mode. Settings display "No Wifi Connected" and several functions auto disabled. Removed display unit and then it showed "low battery". I think the turning the nest "Off" for a full day drained the battery enough that it just couldn't function and was drawing it's power from the Y1 A/C or W1 Heater, but since we were trying to run the A/C and not the heater it couldn't charge itself to switch the A/C on and since we have no C wire it can't charge itself when neither HVAC systems are running maybe?

@tacokitty100 3 жыл бұрын

Thank you for your help!!! Great thorough video.

@qrozfieldsphoto 3 жыл бұрын

Thank you Brother fixed my issue

@logandakshi2087 Жыл бұрын

Thank you very much for your help. I plugged the Nest 3 thermostat to phone charger and it started working and connected to Internet. Thanks again 👍😃

@jyoseph 3 жыл бұрын

Thumbs up dude, charging my nest now and going to look at the furnace...

@darrylnicholson1264 2 ай бұрын

Really helpful video... I couldn't get COOL to work until he explained O/B wire in detail... THANKS!

@xugg 3 жыл бұрын

Could you explain how to hard wire a 24v wallplug-power adapter into a Nest 1st generation? There are only 6 ports for cables, do I run one wire to C and another into the OB* slot? Thanks!

@carriewevill4303 3 жыл бұрын

So Helpful!!!!! Charging my nest now and hope that works but our power was out for a few days and your video makes perfect sense!!!! I may be able to return the battery I purchased for it! YAY!!!

@OneHourSmartHome 3 жыл бұрын

Glad it helped, and that you got your problem fixed! Thanks for watching and subscribing.

@brianmclendon1647 3 жыл бұрын

Thank you!!!!!!! Fixed my issue, you rule!!!

@Obxcape 2 жыл бұрын

Excellent video! Much appreciated! I have 3 systems in my home, all individually controlled by Nest thermostats. ONE of the thermostats controls an hvac unit to a room with its own hvac unit. The room is rarely used, so I’ve had the system in that room set to OFF. Is this ‘OFF SETTING’ possibly leading to the 2 ‘AAA’ batteries draining, because the thermostat isn’t getting power from the hvac unit?

@hansbrolo8705 3 жыл бұрын

Really helped me out. Thank you.

@UmutDenizKoyun 2 жыл бұрын

Thanks for the video. I had only two wires from my previous thermostat. I used them on W1 and RH. Lin shows only 8 mA (o) It also shows the same when I charge it externally with an 10W adapter. After charging externally, it keeps working normally 1-2 days max. Do you think I should connect another wire from C to the heater ? Will it help to get more power ? Thanks!

@DanielKastner 3 жыл бұрын

Hey, appreciate the info!! Thanks!

@staceyrollins1 3 жыл бұрын

Thank you! If you have a jumper red wire to both to rh and rc… do you have to have the jumper to both for the nest or can you just do one?

@jodib111 2 жыл бұрын

This was very helpful. Fixed my issue.

@GregSr 3 жыл бұрын

Your advice to connect the Nest to a charger while it's off the base was excellent! It's charging right now. I'm troubleshooting why the Nest is dead. I did verify the 24 volts is NOT present at the base. But if I can verify the system works otherwise, then I'll resolve the issue with the 24 volts. How can I determine which generation my Nest is? I think it's Gen II. I want to change the battery simply because the thermostat is more than 5 years old. But, before I buy a new battery, I want to be sure I get the correct one.

@tobeamazingtoo8881 2 жыл бұрын

Thanks. Very thorough and informative video.

@ali2k4 3 жыл бұрын

this was really helpful thank you!

@wimschoenmakers5463 2 жыл бұрын

Thanks for the usefull video! Got 3.9 Volt power and over 200 MilliAmpere current, so should be fine.

@twostep1933 2 жыл бұрын

Great video. We've had a few lengthy power outages in our area as of late and I never would have thought it would affect the thermostat and a need to charge it back up. I had the C-wire issue years back, which I also had to add as a power fix. Thank you for making great, helpful content!

@Vulpixyy 3 жыл бұрын

I want to check, if I have an RC and an RH connected and wired in already. Can I put the 24 volt converter into the rh and c (double up like you mentioned in the RH) and it will function just fine?

@logandakshi2087 Жыл бұрын

Thank you very much for sharing this knowledge. The advise to connect to USB and reconnect worked.

@myrkajavvs 2 жыл бұрын

Very professional good job thank you so much

@f.c.9132 7 ай бұрын

Learned tons from your video man! Thank you! Realized I only have a RH and W1 wires connected, no C. Keep losing power and the lin is at 20 which tells me I will likely need a (C) wire if it keeps happening since I have no G. Had no clue what any of this was! So thanks!

@lfgnation8434 3 жыл бұрын

Thank you brother!

@Rocco-nu1ui 2 жыл бұрын

Thank you for the video. Got an e74 message. I knew the drain pan was full. The evaporative unit line was clogged up, so the secondary drainage was filling up the drain pan. Thank god for the sensor. Water would have been all over the condo.

@swcwrx 8 ай бұрын

saved the day, it's November in New England and our Nest was completely drained

@cdc3150 2 жыл бұрын

Just worked for me thanks for the help!

@wallacesilva9931 4 жыл бұрын

Good Morning! need help! yesterday i was installing a nest thermostat and the device didn’t turn on. there are three wires that come out of the wall in red, black and white. can someone help me These thermostat need refill? thank you!

@pgdmed 2 жыл бұрын

Thank you for your videos. I’ve been learning a lot from you. I have a question. I bought the Nest Thermostat 2020 version (mirror look if those helps) I can’t for the life of me find how to lock the thermostat. Does it even have this feature? Also, it states it has a update ready but when I try to updated, it states “failed to update”. Do you have any videos addressing these issues? Thanks for your help.

@MB-kz8de 2 жыл бұрын

I need to determine if my HVAC system is the issue. I would like to try the solution you suggested in minute 11 of the video. If I have a common wire connected will this affect which two wires I connect or do I still connect w1 and Rh?

@saillyndsey3712 Жыл бұрын

helpful and clear. good video!

@rpatrickbill5932 3 жыл бұрын

I learned so much! This is Great. Do you show us how to replace the battery?

@olographics 4 жыл бұрын

I have exactly the same wires as your system but my red wire is connected to Rc not Rh like in your system, should I change it? What's the difference? I just plug my nest to usb because it was installed and after more than 2 hours still shows low battery, do you think it is because of the red wire connection? Thank you for your advice.

@courtneysmith6453 3 жыл бұрын

I want to test my thermostat like you suggested, but I don’t have an Rh wire. What two wires should I connect to test it?

@nowadd0 3 жыл бұрын

I didn’t have to change the wiring because the common wire was there and just folded back but I appreciated the information you gave us to solve the problems!👍

@jamieco0o 3 жыл бұрын

Great vid i checked mine issues with wifi power 3.758v /vusb 4.97v /Lin 200(c) But my Vin is 0.00 V ?? new battery needed ?

@theedgeofoblivious 3 жыл бұрын

Thank you!

@thehummerdoc9277 Жыл бұрын

Thanks for reminding me about the mini USB for charging. My unit was off and I couldn’t reconnect to WiFi or lock the unit with low charge. Thanks again.

@NathanHarrison7 2 жыл бұрын

Those are some great hacks bud. Thanks man.

@kengifford7612 3 жыл бұрын

Very well done!

@lonniebarrios5101 3 жыл бұрын

I have a 2nd Gen Nest thermostat. In the past I've had intermittent battery issues. We just came out of a 3 day power outage in Texas. When the power finally came on, the thermostat was acting really weird. Most notably, when it called for heat, it would just turn on the fan and never light the burners in the furnace. I re-installed the old thermostat and the system works fine. Problem is with the Nest. Charged it for 24 hours and re-installed it. Now it won't even turn on the blower. Just constantly says "Delayed 3:00". With no C wire, is my battery just shot and can't keep up with the demand even though it says it's at 3.8v?

@jonyamasaki6725 3 жыл бұрын

Our battery was low, however after charging we had an “e74” error...found out drain pan was clogged, shutting the red power wire off. This saved us water damage, however it took a while to figure that out. Nest being low on charge was only partly blame. Safety feature shut-off that was not well documented. Hopefully this helps some folks

@TheEmillz1 2 жыл бұрын

this comment was the most helpful. thank you!

@victorramirez1987 2 жыл бұрын

Same

@geminigirl1135 2 жыл бұрын

What is a drain pan ?

@Seasniffer69 2 жыл бұрын

@@geminigirl1135 some houses don't have a drain for the a coil condenser where the blower motor pushes air through to cool, it creates condensation which typically runs out of the unit down some PVC off the furnace into a drip line to a floor drain. Some people don't have floor drains and have to dump the accumulated water from running ac

@robertr3880 Жыл бұрын

Thanks! The drain line was clogged which caused the water to trigger the safety switch cutting power, cleared it and fixed it! Thanks Jon Y!

@MsDhowse 3 жыл бұрын

Thank you for posting this info!!!! My power went out.. everything came back on but the AC the nest continued to say offline.. I remove the nest thermostat, plugged in to USB cord..the light blinked 3 times then it said to put it back on and I got the AC working. It's still under warranty will have them come check, but this helped significantly!!!!!! Thank you.. New follower!!!

@stephenboadi1215 3 жыл бұрын

Best video ever- you made my night

@OneHourSmartHome 3 жыл бұрын

Glad it helped!

@Rainbow-jx1ov 3 жыл бұрын

You are a saint. Thank you!

@judirothberg7411 3 жыл бұрын

Great video very informative

@raymondliang123 3 жыл бұрын

Wonder if I only have the 2 wires system, how often do I need to charge the nest e?

@evanr9992 2 жыл бұрын

I only have the white and red wire for a boiler/baseboard system. I was told to get the google power adapter “c” wire and hook it to my zone valve or controller. Is that the simplest way or do you have any other ideas ?

@LyNguyen-fm2ii Жыл бұрын

Thanks so much for your video, it does help us a lot for fixing the problem. Would like to ask even we fixed the problem having the power back on after charging the thermostat, do we need to replace the new battery as well?

@romanbarnas5134 4 жыл бұрын

I did move the g wire to c. AC unit would not start. Later I realized that I have Honeywell mini zone between the furnace and the thermostat. Did I damage something by moving the wires in the thermostat and the furnace but not in the mini zone? I switched everything back to how it was before when it worked, but the unit still does not turn on. Please help. Thanks!

@rickmcculloch374 2 жыл бұрын

I bought three Nest E's yesterday on clearance. They are obviously old stock and had to be charged prior to installing/setting up. That said, two work perfect, one when putting it on the base said "remove from base and reattach" I left it over night and now it's dead, no light, no nothig. I currently have it on charge assuming its dead again? Have you encountered this with the "e"?

@ralphrosario1 3 жыл бұрын

Thank you very much

@OneHourSmartHome 3 жыл бұрын

You are welcome!

@robpfaffmann7891 3 жыл бұрын

Google is negligent in not providing easily fixed battery and charging guidance like this

@tubehound69 3 жыл бұрын

Occasionally my Nest disconnects from the WiFi because the battery voltage drops. I have an older house designed for the outdated mechanical thermostats so I have the 4 wire system. In the more temperate months when my HVAC system doesn't run much is when I run into this problem the most. Without the common wire the Nest battery only charges when the system is running from my understanding. From the info in this video I could relocate the fan wire on my nest and HVAC system to the common wire to correct this, but wouldn't this prevent me from being able to run the fan by itself (without heat or AC running in conjunction)? If that's the case I would prefer not to use that option. On the other hand, does the battery recharge when you run the fan by itself, or does the heat or AC have to be running for the battery to be recharged? If the battery does recharge running the fan alone, then simply programming the fan to come on for 30 minutes twice a day at strategic times should ensure the battery stays charged. I say strategic times because if I program the fan to run from 4pm-4:30pm and the AC is running during part of that time I wouldn't see 30 minutes of additional charge time on the battery. I'd want to program the fan to run at times when it is unlikely the heat or AC would be running to get the full benefit of this technique.

@johnmcgill3690 2 жыл бұрын

I have 2 wire boiler system with heat zone manifolds. Think the manifolds take power from nest learning. How to get power without effecting all zones?

@TheNomadMan1968 3 жыл бұрын

Thanks for this video. I'm heating only and am diagnosing an e74 code. Nest shows 3.8 battery voltage and lin mA of 20. I connected rh to w1 and the furnace/fan shuts off after about 6 min pretty consistently then turns back on. Time to look at furnace? Note: It's only about 5 years old.

@OneHourSmartHome 3 жыл бұрын

If it's running and shutting off it typically means that a limit sensor is tripping on the HVAC system. The limit sensors can be tripped because there isn't enough airflow, it's getting too hot or the burners are not preforming as they should. A very simple thing to check is your air filter. If your air filter is clogged it can cause the system to cycle like yours is. There's plenty of other things that it could be but checking the air filter and replacing it is an easy inexpensive place to start that could help you avoid a service call. I'm going to be doing several videos on diagnosing HVAC issues over the next few months so stay tuned for that. In some cases people misdiagnose an HVAC system issue as a smart thermostat issue so I want to help people understand what the difference is and how to so some basic troubleshooting.

@browninggeoff 3 жыл бұрын

It looks like the green wire at the Nest was not actually plugged into the furnace at all. I took the green wire and put on the C terminal along with a red wire at the furnace wiring block. Now my Nest is showing voltage at 3.8+ and my mA went from 20 to 200. Is that ok? And my AC seems to be staying on ok. Thanks.

@daddylogan 2 жыл бұрын

Where is the link to your furnace video on replace fuse or flame sensors? Can't find it. Also do you have a conversion video of 4 - 5 wires using an adapter?