HONEYWELL Home T4 | HOW to Factory RESET | Restore DEFAULT Settings

[@darahkerpka9051]

Our cool on is now showing but not blinking and the air won’t go below 75 even though we have it set at 69. I’ve reset the thermostat, changed the batteries, etc. help! Thank you! 1:19

[@BettyDeel]

How u reset the honeywell proseries,because I can't get the cool working my husband took batteries out so it doesn't work like it did so do we reset it again but we didn't put it in .so we don't k kw how to reset it all

[@mypassivebusinessonline7568]

I reset the thermostat heat up the house for about 10 min. and for the next 5 min cool air and then heat up the house again

[@trinasteps1152]

I can't get my ac to go under 80. Please help it's a new unit

[@dawnlash230]

I got the factory reset done, and all scheduling turned off, but when the fan comes on in the Cool Setting, it is not cooling down. It almost feels like it is blowing warm air. My selected setting is 73 degrees, and the room temperature is now at 84 degrees. It shows COOL, Cool On, and Auto Fan setting. After factory resetting, is there something that needs to be done to make it cool again?

[@MoralesModzz]

Having the same problem currently

[@dawnlash230]

@@MoralesModzz I found a very competent veteran who has his own business. He came over and entered the correct ISU codes, to correspond with the HVAC unit, and that made everything start working again. If I had known I had to have knowledge of all those ISU codes, I never would have done a factory reset.

[@tinayoungblood2411]

My Honeywell home thermostat doesn’t pick up but the date, time, F/C and lock buttons. It’s a fairly new unit and will only turn on at 4am and run until cold. The rest of the time it stays on but blowing the cold air where I put my filter. I have tried everything for days and all it’s doing is running up my electric bill. So frustrating. They should have made these to understand and should have came with a instruction book

[@erikavazquez2861]

DO NOT DO THIS. Now the fucking thing says the AC is on but the heater is coming on and I’m late to work.

[@ellendearing3942]

Not working at all. Electric went off. Stupid thermostat

[@junemorris9847]

Mine is on fan running and i can't get it to go on auto

[@abc-gi3oj]

So awkward and confusing. The manual is written for a professional tech. Think about us - old guys who cannot read small letters and cannot see tiny knobs.

[@mzindependentbornpretty4243]

Am so confused how do I get my bottom number lower on cool??

[@anettedesire8824]

I Literally LOVE you 😘 thank you Sooooo much you’re the absolute best 🙌🏾

[@flyingrcdotnet]

I changed batteries in my T4 but it still shows BATT on the screen. I double checked polarity just in case. How do I clear that BATT message on the screen?

[@cezzmunoz]

My mode button don't work

[@spencerbean2860]

what if Cool On is blinking on the side after restoring defaults? I just want manual entry no programs or anything

[@ellendearing3942]

Heat will not come on. Stupid thermostat

[@onurmendeli5938]

I recently moved to a new home, and it comes with one of these pro series units. However, when I try to add it on the Resideo app (formerly Honeywell Home) it tells me that it was registered before. Surely the previous owner must have registered it. So, will reseting the unit allow me to add this device to my account? The previous owner is kind of a jerk, and I would rather not ask him. Thanks for the feedback🙏

[@robinwallace-d4h]

Hi. Thank you. That was very helpful. After I restore defaults it brings me to an iso screen which I can’t seem to get off of. Any thoughts?

[@dawnlash230]

My AC was working fine, and then a tenant turned it off when I wasn't watching, and now it is so hot outside and the AC hardly ever kicks on. I watched the above video and am trying to reset everything. Perhaps she unknowingly pressed something to set up a schedule to change the time it should run? Any help I can get will surely be appreciated.

[@larissahernandez2230]

Why does mine not show Fan seems like I can’t make it cool only warm in my apartment

[@Crazy-Horse-Tx.]

Piece of junk. Damn landlord maintence guy put this fancy crap in my office !

[@finzyt2538]

Question. My T4 Honeywell ProSeries thermostat was showing the ability to temporarily and permanently hold the temperature when I would set the temperature, but now after three weeks, it has suddenly disappeared. Any clue how to get the setting back

[@joshuahudson3586]

How do I turn off the recovery mode?

[@DebEvans-m5f]

No answer? I need the same thing.

[@CharlaFilter]

i changed the batteries an the air wouldn't come on, I reset and it still won't come on. Don't know what I am doing wrong. This is not a used unit.

[@nanaqueen3766]

Good job ✌️

[@x4-reborn641]

My account is not working

[@richardfiore9183]

How do I get out of unlock

[@xoztq]

1234 is the password for all thermostats

[@kellieboone901]

What if that don't work

[@BettyDeel]

I just need reset

[@peachesz26]

What if it’s froze on the isu screen?

[@JohnFrancoNH]

pull batterys out so it does a reset on device

[@jacquehickenbottom9064]

What is the function of " em" heat?

[@JohnFrancoNH]

if your main furnace goes down there is another heat source wired up to operate at the flip of a switch.

[@kjjunior2001]

How do I unlock it?

[@JohnFrancoNH]

I have a separate video for lock and unlock. Check out my thermostat playlist

[@lizbethmendoza7959]

How to change the password on it

[@JohnFrancoNH]

watch my other video showing it, check out my playlists