Auxiliary Heat Run Time: Auxiliary heat source is running too often. 3hours + is not unusual in colder weather. • Your auxiliary heat source is running • at higher than expected outdoor • temperatures. There's also a setting to change the length of time before the warning triggers. I live in a large apartment complex, and had the EcoBee3 installed about a month ago. Just change the alert for the aux to more than three hours? Default before engaging aux heat on most ecobees is 35. Low thermostat battery alert. This may seem silly, but is there a recommended way to determine that? The long version: Nest Theremostat E supports 2 stages of either heating or cooling, and 1 stage of the other. W2, AUX and or E (Emergency) wiring connections will normally connect to the ecobee3 W1 terminal. Thanks! Check out this guide: https://www.reddit.com/r/ecobee/comments/7wdnfx/comment/dtzqnjm?st=JRZ13936&sh=cd0dbc25. So long story short, when it’s at 64 and I want it to be 72, it’s going to cost me a bit extra to bridge that gap. When the balance point between outdoor temperature and heatpump capacity has been exceeded. If your Ecobee thermostat is running too hot, click here to see how we ended up fixing ours. I think I'm having a problem whereby the Ecobee isn't actually activating the auxiliary heat on my heat pump. You may be able to get away with less if your system is oversized or you have a well insulated home. ** Auxiliary Heat. Auxiliary heat running too long. Thanks! Is this a programming flaw internal to ecobee programming? I got a notice that my axillary heat has been running for over a hundred and 80 minutes in the last 24 hours and at that was too long. This has probably always been happening but I am only now aware of it because the ecobee is notifying me? This option should also be used for installation where the heat pump evaporator coil is downstream from the source of auxiliary heat. Heat pumps cannot recover quickly, and aux heat will kick in when trying to increase temperature. ecobee3 manages auxiliary heating through the W1 & W2 (if there is more than 1-stage of aux heat) terminals outputs. Meaning only when it gets under 40 will the aux heat kick on. As you continue to use your ecobee, it learns how long it takes your home to get to a desired temperature. A subreddit for ecobee and all their smart home products. Now it is set to two hours. When temperatures get very cold here (say, 20 or below), my condo really struggles to maintain temperature, while giving me alerts that the Aux has been running too long. 03/21/2018 21:34 Subject: Ecobee 3 & Electric Heat Pump Error The ecobee also has a comp to aux runtime, that I had disabled, until it got really cold. I’m a pro. 300 seconds is fine by honeywell and me. I have the lockout set to 20F and compressor lockout set to 10F. I'd never set a temp to kick on AUX. Short version: the ecobee supports more stages of heating and cooling than the Nest Thermostat E, for both conventional systems and systems with a heat pump. Should I be concerned about this message? In these cases you can manually enter a higher differential to avoid the auxiliary heat coming on for a certain time or temperature difference (it is up to you what value you would like to keep it at). Your thermostat auxiliary heat has been called to run when the outdoor temperature exceeds the programmed set point (the programmed set point can be between 32°F and 80°F). It is more likely that your system just needs the help. When its gets with 1.5 degrees of room temperature, the back-up heat cycles off and the heat pump continues to run trying to keep up to reach temperature, but it cannot. Remote sensor battery alert. Out of the box, the Ecobee does one thing very, very wrong. Compressor to Aux Min Runtime is how long it attempts to run the heat pump before kicking over to Aux heat. It's been pretty cold here for us, so I'm not sure how I should change that. This setting is under Menu > Settings > Installation Settings > Thresholds > Aux Heat Max Outdoor Temperature, This is the max temp that the aux heat will kick on. A surefire way to know if there is an issue with your system is to check the auxiliary heat light. The ecobee will work with about 95% of HVAC systems. You can adjust the threshold for the alert through the "Reminders & Alerts" tab in the web UI (Reminders & Alerts -> Preferences -> Aux Heat Runtime Alert). With Arizona’s high temps, there usually isn’t much need for secondary heating. The ecobee will not be compatible with high-voltage systems. If you notice that your auxiliary heat seems to be coming on too frequently or you get an alert that says “auxiliary heat running too long,” there may be a simple fix that could save you a service call. I tried setting it lower but noticed the temps in my home would drop and standard heat wasn’t enough. This is, however, the way heat pumps are designed to operate. This varies depending on equipment sizing, duct leakage, how high you set your indoor temperature, and how well insulated the structure is. Some heatpumps can take longer than others to warm up and finally start giving heat. If you're expecting to use the aux heat a lot, then I wouldn't worry about it too much. I am doing a sleep schedule. I wouldn't, it's just gonna be expensive. If your Ecobee was recently installed, it’s possible that the settings haven’t been changed from the factory pre-sets. If it’s particularly cold where you live, the heat … If after 2 hours the set point has not been met, the Thermostat will shutdown the heat pump and call on the auxiliary heat to meet the set point. | 250 University Ave | Suite 400 | Toronto, Ontario | M5H 3E5 Toll Free 1.877.932.6233, Int. A subreddit for ecobee and all their smart home products. Here's how to make it right. This is just telling you that you're spending money. Here is a screenshot of the message. How Emergency Heat Works. It's been a high of 40 for a couple days so I'm not sure how to help the aux heat there. Let tstat keep up as needed. I think there is a setting that will allow me to adjust that time period where it notifies me of this, but I don't want to cause damage to the furnace. Your ecobee will take into account the performance of your HVAC equipment relative to the effects of weather on your home. If you try to do big setbacks, like with home/away or a nightly setback during sleep aux is often needed to get the temp back up to where you want it. I have the Ecobee set to automatically control my auxiliary heat, but it seems to usually kick in when the temperature is 2 degrees below where I’ve set it. I installed the ecobee 3 this weekend and have received this message twice now, once yesterday, and again this morning. Thanks for the careful reply! Auxiliary heat is less energy-efficient than your heat pump, and it is meant to only run for short periods of time when temperatures drop. • Your auxiliary heat source is running • too often. Ecobee and heat pump. Press question mark to learn the rest of the keyboard shortcuts. For me, with electric resistance heating, some of them didn't make a lot of sense at their defaults -- for instance, the Ecobee will lock out the heat pump from running if it's below 35F outside. Yep! Having Emergency Heat on can and will be more expensive to run. This feature requires an … Auxiliary heat kicks on when your heat pump can’t produce enough heat to warm your home by itself. This varies depending on equipment sizing, duct leakage, how high you set your indoor temperature, and how well insulated the structure is. 10 min too long for off cycle. New comments cannot be posted and votes cannot be cast. I’ve set mine at 40. EM heat is NOT the same thing as AUX heat: AUX heat signifies that your heat pump has automatically switched over to backup heating because temperatures are too low. You want the aux heat to run as little as possible. Dual-fuel systems, which include a heat pump and a gas furnace in one system, have been a popular choice with our clients. This is called aux heat min temp in thresholds. It's also worth checking out some of the thresholds for the Ecobee regarding heat pumps (under Settings->Installation Settings, I believe). Press J to jump to the feed. 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