Honeywell Home T6 Pro · problems & reliability report

Honeywell Home T6 Pro problems: what real owners report

11% of 38 verified Honeywell Home T6 Proowners don't recommend it — based on real owner comments from Reddit, enthusiast forums, and YouTube.

For balance: 87% recommend it. This page collects the complaints so you know what you're signing up for — read the full owner report for both sides. How we score

Trend
Recent owners are happier than older ones — the last six months run 100% recommend vs 87% all-time. Early problems may have been addressed.

Most common complaints

In owners' own words

“I have honewellhome app but it doesn’t work.”
— @catherinesmith48 on YouTube
“This system sucks”
— @larissasastevens2456 on YouTube
“These thermostats are absolute junk”
— @chrsmarksen3040 on YouTube
“The schedule on this thermostat sucks super confusing”
— @cryptonator1988 on YouTube
“I don't want a smart thermostat to create a heating and cooling schedule. I want a standard thermostat thank you.”
— @tommywatterson5276 on YouTube
“So at night I wake up in a sweat.”
— @bonitachandler732 on YouTube
“it keeps changing the temperature by itself”
— @miss_andry1857 on YouTube
“I hate the programming inputting.”
— @9jmorrison on YouTube
“This is too much programming unless you hire a professional.”
— @MSArtistgallery on YouTube
“How do you open the f ing thing to replace the battery?”
— @leafyutube on YouTube
“the MOST impossible torture of any registration I have ever done”
— @kenhamm65 on YouTube
“My Honeywell does not say PROG when I hit the menu button. What can be the problem. I am unable to program it”
— @DJ-oz4kx on YouTube

Setup quirks & things to watch for

Not complaints — practical notes from owners that didn't affect the score.

“After any configurations are done via the touch screen, the temperature reported spikes 3-4 degrees and then will slowly ramp back down to the real temperature reading.”
— jerias.mitchell on Hubitat Community
“When I turned on advanced reporting on my T6 the humidity dithered between 30% and 31% every minute or so.”
— JohnRob on Hubitat Community
“I typically install Bosch systems with Honeywell T6 Pros or the T10. The T10 has the advantage as it can use internet weather for the dual fuel compressor lockouts. The T6 Pro needs a hard wired outdoor temperature sensor. Both have app connectivity, the T10’s interface is better than the T6 Pro.”
— chuystewy_V2 on Reddit
Weighing it up? The full report has the other side — what 87% of owners like about it, who it's for, and every sourced quote. Full Honeywell Home T6 Pro owner report →