If you’re staring at a Honeywell zone control board and the PURGE light is blinking, I know exactly why you’re concerned. Homeowners usually ask me two things: In most Honeywell TrueZONE systems, a blinking PURGE light usually points to a Discharge Air Temperature Sensor problem. Honeywell calls it the DATS sensor. It’s the small sensor … Read more
Your Honeywell thermostat is basically the control center of your whole heating and cooling system. When it starts acting up, the symptoms can look scary. Blank screen, wrong temperature, Wi-Fi dropping, heat not turning on, AC short cycling. After 10 plus years working as an HVAC technician, I can tell you something reassuring. A reset … Read more
I’m Nathan. I’ve been an HVAC technician for over 10 years, and if there’s one thing I’ve learned from service calls, it’s this: most thermostat problems get solved a lot faster when you’re looking at the correct manual for the exact model on your wall. Emerson thermostats are a little tricky because many “Emerson thermostat” … Read more
Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and a big chunk of my service calls have started with the same sentence you might be thinking right now: “My Emerson thermostat is acting weird.” The good news is most Emerson thermostat problems are simple. In many homes, I can get … Read more
I’m Nathan, and I’ve worked as an HVAC technician for over 10 years. I’ve been in a lot of homes where the thermostat looks fine but one little symbol, like a blinking flame, has the homeowner worried something is failing. Here’s the good news. On many Emerson thermostats (including Emerson Sensi and many White-Rodgers models … Read more
I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and I can tell you this is one of the most common “my thermostat is broken” moments I see in winter. You look at your Google Nest Thermostat and suddenly it says AUX or EMER, the screen color changes, and your next thought … Read more
Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and I’ve seen this exact situation in thousands of homes: you pull the thermostat off the wall to install a new one and find a blue wire that isn’t connected to anything. Most of the time, that blue wire is not a … Read more
If your Nest Thermostat is acting weird, won’t connect to Wi Fi, or you’re moving and need to hand it off to someone else, a reset is usually the cleanest fix. I’ve been an HVAC technician for over a decade, and I can tell you this is one of the most common “smart thermostat” problems … Read more
I’m Nathan, and I’ve worked as an HVAC technician for over 10 years. I install and troubleshoot smart thermostats all the time, and this specific complaint comes up a lot: You look at the thermostat and it says it’s connected to Wi Fi, but your Nest app or Google Home app shows it as offline. … Read more
Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and I’ve helped a lot of homeowners track down weird thermostat noises. A Nest thermostat should be basically silent, so if you’re hearing a buzzing, humming, fizzing, or chattering sound, something is off. The good news is that most Nest buzzing issues … Read more