We've got a central cooling air conditioner that was installed in 1984 with a thermostat from that same year. We are replacing the thermostat with a new programmable one (which has a 100% compatibility guarantee). Following the instructions from Home Depot I located the circuit breakers for the unit and switched them off (the circuit breakers on the panel inside the house, not the main ones for the entire house). The AC unit is still running and blowing cold air. Am I missing something here or could the breakers be broken? Or worse, could the unit be installed improperly? Feel free to point out the obvious. More info if it matters: We have a Trane central air unit with a heater pump and an emergency electric heater. We are in Central Florida electrical air-conditioning thermostat circuit-breaker You are missing something. Either you have not found the correct breaker yet, or the breaker is not inside the breaker panel for your house. Walk through each breaker in the breaker planel for your house.

You could have a mislabled breaker. (The breaker you are looking for is likely a two-pole 240V breaker, maybe 30 amps or better.) Since this is a central cooling unit, it might be powered from its own breaker box. Follow the electrical supply wires (cable) back from the unit. Where does it go? You might find another breaker box dedicated to the cooling unit alone. There might also be a breaker in your meter box protecting the unit in addition to the main breaker for your house. The two breakers (double pole breaker) labeled "Air Conditioner" are likely protecting some other 240 volt device in your house, such as a hot water heater, dryer, range, baseboard hearters, etc. You should probably find out what that breaker controls and label it correctly. Some AC units have an on-delay timer that prevents the system from turning on until 2 minutes after power is restored. I recently discovered the same issue, except I found that the idiots that wired up the AC units switched the wires with my neighbor's AC unit!!!!!

My breaker turns off their AC unit! For 12 years I have been paying for their AC usage!Browse other questions tagged electrical air-conditioning thermostat circuit-breaker or ask your own question. How to Turn Off Your Nest Thermostat The Nest Thermostat is pretty easy to use, but it isn’t so apparent how to turn off the thermostat when you don’t need heating or air conditioning on. Sure, you could just set the Nest to “Away” to stop it from heating and cooling, but that won’t work very well if you have Home/Away Assist enabled. Luckily, there’s a really easy way to simply turn off the Nest Thermostat. It’s not directly out in the open in the Nest app, but it’s easy to get to, and you can also do it from the Nest unit itself. From the Nest App Open up the Nest app on your phone and select your Nest Thermostat on the main screen. Down in the bottom-left corner, tap on “Heat”. It also might say “Cool”, depending on the weather in your region at the time.

When the pop-up menu appears, select “Off”. This will turn off the Nest Thermostat until you turn it on manually again. On the Nest Thermostat Click on your Nest Thermostat unit to bring up the main menu. Using the silver scroll wheel, navigate to “Thermostat” and select it. Use the wheel to select “Off” and push on the unit. ac area unitYour thermostat will now be turned off.can an ac unit be too big How to Adjust the Nest’s Safety Temperaturesprices ac unit home Keep in mind that even though it’s off, the Nest Thermostat still has safety temperatures that it will act upon. So if the temperature in your house reaches a certain level (the default is 40 degrees Fahrenheit), the Nest Thermostat will automatically turn on and begin heating the house to prevent pipes from freezing.

This is great if you ever forget to turn the thermostat on while you’re away from home for a significant period of time. To adjust these safety temperatures, you can do so from within the Nest app. From the main screen, select your Nest Thermostat. Tap on the settings gear icon in the top-right corner of the screen. Select “Equipment” from the list. Tap on “Safety Temperatures”. From here, you can adjust the safety temperatures a bit. By default, your house can get down to 40 degrees Fahrenheit, and there’s no default maximum temperature that will trigger the AC to kick on. However, by holding and dragging on the dots, you can set these to specific temperatures, but you can only go as high as 45 degrees for the heating and as low as 95 degrees for AC. You can also turn off both if you want, but it’s always a good idea to set these so that you don’t cause any trouble in the future. JOIN THE DISCUSSION (1 REPLY) More Articles You Might Like

Is there a way to turn on my window air-conditioning units from my office, so my house isn't hot when I get home?If you had central air, the answer would be easy: Install a smart thermostat such as the Nest or Honeywell Wi-Fi Smart Thermostat. But even if you don't have central HVAC, you can still control window air conditioners from afar, so you always arrive home at the end of a sweltering summer day to a ­comfortable and cool house. To pull it off, you'll need to plug your air conditioner into a smart outlet, which, in turn, plugs into your regular outlet. These can be controlled over the Internet via your smartphone or from Web portals. We like Belkin's Wemo Switch (in spite of its name) for its compatibility with If This Then That (IFTTT), an automating service, and ThinkEco's Modlet, which is used by some utility companies for demandresponse programs. As long as your a/c unit isn't an industrial-size behemoth that ­requires 220 to 250 volts, and as long as it has either a manual control knob or, if it has digital controls, can restart after a power outage, it should work fine.

Both Belkin and ­Modlet have smartphone apps that pair with their respective switches and let you flip them on and off from anywhere. Keep in mind that you must leave your a/c on for either smart switch to work, since it turns the entire outlet on and offstopping and starting the flow of electricitynot the specific device. (The same is true for other appliances, such as lights, that you plug into the Wemo.) ), such as one that turns on the Wemo every time the outside temperature reaches a predetermined threshold, and ­another that puts the Wemo on a set daily schedule. Next thing you know, you'll ­never have to lift a finger to an on/off switch again. The New Mini NES Has a Retro TV Filter Here Come the Cases That Give the iPhone 7 a Headphone Jack Commodore 64 Still Powering Auto Repair Shop in Poland This Giant Shapeshifting Rubik's Cube Is a Beautiful Nightmare A DIY Roomba Is a Project That Can Clean Up After Itself A DIY Concrete Keyboard Doubles As One Heck of a Paperweight