I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and I’ve set up and serviced a lot of Honeywell and Resideo thermostats in real homes with real comfort issues. The biggest confusion I see from homeowners is this: You buy a Honeywell thermostat, download an app… and suddenly you’re stuck choosing between … Read more

Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and I can tell you this situation is incredibly common: you change the batteries (doing the right thing), and suddenly the thermostat is blank or your heating and cooling won’t start. The good news is that most “Honeywell thermostat not working after … Read more

Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and “my Honeywell thermostat keeps going offline” is one of the most common smart-thermostat complaints I get from homeowners. The good news is that this issue is usually fixable without replacing the thermostat. Below is the exact troubleshooting flow I use so … Read more

Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and I’ve had this exact call more times than I can count. You look at your Honeywell thermostat, the snowflake icon is blinking (or “Cool On” is flashing), and you’re wondering: Most of the time, a blinking snowflake is normal. But there … Read more

Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and one of the most common “my AC is broken” calls I get in summer starts like this: “You won’t believe it. My Honeywell thermostat won’t go below 70.” In most cases, nothing is actually “broken.” The thermostat is usually doing exactly … Read more

Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and this is one of those issues I see a lot when homeowners install a new Honeywell thermostat or after a reset or power outage. When your Honeywell thermostat is not showing the Heat option, it almost always means one of two … Read more

I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and “my thermostat won’t reach the temperature I set” is one of the most common calls I get during heat waves and cold snaps. Here’s the tricky part: sometimes the thermostat is the problem, sometimes your HVAC equipment is the problem, and sometimes … Read more

I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and I can tell you this from experience: a “simple” low thermostat battery is one of the most common reasons homeowners lose heat or AC at the worst possible time. The good news is that changing the battery in most Honeywell thermostats takes … Read more

Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and I can tell you something that surprises a lot of homeowners: In most “Honeywell Pro Series not cooling” calls, the thermostat is doing its job. The cooling problem is usually somewhere else in the system like airflow, power to the outdoor … Read more

Hi, I’m Nathan. I’ve worked as an HVAC technician for over 10 years, and one of the most common “simple but stressful” jobs I see homeowners deal with is wiring a Honeywell thermostat to a heat pump. Heat pump thermostat wiring is not hard once you understand two things: In this guide, I’ll walk you … Read more