HONEYWELL Home T4 Pro | HOW to Use MANUAL Override | Factory RESET | Menu & SETUP Options

[@thatotherguy1]

A lot of heating contractors and companies are using this thermostat now. It is confusing trying to follow the instruction manual but this video REALLY HELPS on making easier to figure out. Thanks for sharing!!

[@wholesoul5866]

This video just saved me from hassle time. The electric company have been working on outages in the area. My electricity was actually cut off and back on 37 times this morning, between 9 and 1:30 p.m. My alarm company texted me each time my wifi and alarm base would go off. So, that's how I got the count. I had used a utube video once before to set my thermostat. So, I remembered to check back here to reset it, because it had went back to the factory setting! These video's makes a 70 year old woman not feel so helpless! Thank you again! 👍🏼 ❤

[@jbsimmons54]

"Save" the link to a YT personal folder category. That way it'll be at your fingertips.😁

[@kellyrodgers3127]

Finally I found somebody who will go through the setup since I have no directions thank you

[@kellyrodgers3127]

All the other videos just want to tell you how to program the thermostat that's pretty much common sense

[@raulnieves8462]

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[@evanbalikos1878]

I am sure you get this all the time, John but your video literally made my night. Such a wonderful, slow, easy to understand tutorial is exactly what I needed, and Honeywell was no help! You’re a hero!!

[@kgx29]

Even if you still have that instruction booklet that covers the advanced set-up options/ that ISU stuff kicking around, if you get headaches dealing with fine print instructions geared to pros (like 90% of us), this KZbin video is a game changer. The electrician who installed my T4 claimed I could NOT override the schedule function in the simple way like John shows here. He said I had to stay on the schedule and go through that temp hold/perm hold business. So either he lied or doesn't like reading instruction manuals either.

[@Afrojaw329]

Thanks. This helped my reset my thermostat when it stopped working. It’s negative degrees here so this video was a life saver 🥶

[@scoutleader06]

great video !! Honeywell should tell buyers to watch this video instead of trying to read the user manual

[@MrHihihihihi19]

I don’t even know where mine is err where my dads is he set it

[@jbsimmons54]

That's why it's called the Pro Series. Mainly for HVAC pros that need it. Home Depot sells simpler models.

[@MariaHaughian]

OMG!! You have the Advance Setup Options sheets!! I moved into this house and the previous owner didn't leave the information sheets behind. I didn't even know they existed - you don't know, what you don't know. This is missing piece to all of my programming issues. Thank you, Thank you, Thank you!!! Great video - easy to understand - EXTREMEMLY helpful :)

[@jackielinne8921]

I had no clue how to operate. This is so helpful. THANKS FOR POSTING IT

[@sassyc9194]

I hate this thermostat so bad

[@JohnFrancoNH]

what seems to be your issue?

[@annewandungu4568]

I hate it too 😭

[@jodyburgin1855]

Me too. Cannot program. Does not say following schedule top left.

[@AngiezTurn]

We have been miserable all freaking day long my battery died I freaking replaced it took the schedule off I did everything every single video said do STUPID thing still will not come on

[@sugarandspice2136]

@@AngiezTurnsame thing is going on with me right now. And it’s 103 outside!

[@sage7x7]

EXCELLENT! Much easier and simpler compared to the user manual! And thank you for not having any music in the video; which can be distracting!

[@johnrobeck4095]

I agree! This was a straight-forward and easy to follow set of steps. Thank you, Mr. Franco.

[@josiebeck9463]

Thank you so much for being so thorough and explaining this thermostat in Laymans terms. We moved into a new home and the previous owner had it on a crazy schedule. Thank you for clarifying you are the best.!

[@DeniseGib]

Thank you man! This takes rocket science 😅

[@Ill_Stay_In_My_World]

Thank you this video greatly helps I been going crazy looking all over youtube for how to use this thermostat This winter has been very cold not like other winters before that where much warmer Now I'll know what to do as I have not had to reset it before

[@nataliiabyrd6727]

This video just saved me from waking up in the middle of the night, Sweating like crazy because prior schedule was set up and I wasn’t aware. Simple programming is off currently lol.

[@gailalkovich2907]

Best video on this overly complicated thermostat.

[@angelavega9864]

I was locked out for a long time , thanks so much for your information it was so helpful. Quick note 1234 is the universal unlock .

[@debramushaw6147]

Thank you!

[@sulako8174]

Thank you sr, I was about to replace this damn nightmare of a thermostat!

[@siku5it]

The previous owner left this Thermostat without programming. Here there is a temperature excursion for 14C - About 12C in the night and up to 26C peak during the day. - So having to ability to switch over night from cooling to heating was critical, but I had to do it manually. This, until you shared the ISU settings. I modified 300 only, to allow for automatic switching, which is a no brainer for people that have cooling and heating. - But I forgot to set the "Mode" to Auto .. so at first it didn't seem to work. - But then .. this morning.. woke up with a nice 23C. Thank you for your help with this. Really appreciated. :)😃

[@MtRainier7]

My heating technician had difficulty programming the two T4 thermostats installed for us. He said to call the Honeywell people to get help with it. I think your videos and the manual answered all of my questions except how to turn off the cooling mode. We have a separate thermostat for AC, but he accidentally set these thermostats in a way that asks me to program the heat and AC modes - which is just annoying because it is time consuming. Thanks for making these helpful videos!

[@kingr190]

You saved me 300 dollars god bless you

[@JohnFrancoNH]

Glad i could help!

[@ankitakaur9815]

Thank you so much for detailed information. Your video is so helpful. I watched so many videos but nothing worked. Thank you

[@odyssix4889]

Great video but what do you suggest if the unit stops blowing heat and air and just makes a hummm sound

[@peachesz26]

I needed some Freon when mines did this.

[@ajwerkheiser8823]

My thermostat is reading a top number of 68 and a bottom of 74. I am trying to use the AC and it’s not turning on. It’s on cool setting and it’s says cool is on, but nothing is kicking on. Please help!

[@phantasm541]

Same here following

[@orlandoplasencia8058]

Have it on 68 and reading at 77-78.

[@shlomovenezia101]

John WTH please help!!

[@Cheryl-u3g]

Same here I’m dealing with this right now

[@lujohtx]

Same

[@rhondaaaron7366]

OMGosh this video is a lifesaver.

[@zahidshahzad7010]

Thanks alot for solving my big problem You are the best bro 😊

[@TPackage83]

thank you. Our new home has the T4 but right out of the gate, no program option. Checked your vid’s and turned on the program feature under ISU 120. Not sure why it was installed that way unless it’s the default. Anywho, keep it up. Huge help!

[@ianhillman4007]

Hi John. Thanks for your video. Very helpful. Is there anyway of keeping the back light on permanently? When the light go off, I cannot read the themostat from a distance.

[@JohnFrancoNH]

There is no way of keeping it on. Must press a button to temporarily illuminate. Thanks for watching!

[@patricksutton8965]

You're the man! Before today, I didn't even know the thermostat in my rental was programmable. Couldn't find anything online about those advanced configuration opcodes either! Glad I watched before messing with configuration settings! haha

[@dizlizard]

Great video... Do you know if there's a setting for the Ability to automatically restart the thermostat after a power failure.? I'm in process of moving in. When no one's home, the furnace will not go on, will it? What if another outage when no one is home to restart thermostat?

[@JohnFrancoNH]

it runs off batteries its independent of the system it controls. So losing power the thermostat doesn't even know that has happened it just continues on normally. But your heat or cooling system my reset and is what you may be referring to i think

[@michaeljoseph5121]

Are you kiddingwithallthesepages of numbers.?………………..m.p.

[@ali1431]

Hi, thank you so much for the video. Where can I get a copy of the list?

[@lauraklein7220]

Where do I find the ISU The Advanced Options Setup Sheets? I don't see any kind of attachement.

[@louisebrunel6076]

Excellent presentation! Finally, I was able to turn off the programming! Thank you so much!

[@JohnFrancoNH]

Glad it helped!

[@SusanRobertson-f7o]

Great video hate this thermostat!

[@kyleburke6585]

Thank you, have been trying to figure out why this thermostat doesn't follow my schedule, turns out it's got some adaptive recovery setting that tryst to get it to temp by the time the schedule says. Not good for a time of use plan, but this video gave me exactly what I needed to turn it off, thank you!!!!

[@FionaHandy]

Thank you for this video. Adaptive Intelligent Recovery was driving me crazy! Now it's disabled.

[@anthonyhitchings1051]

The temporary and permanent hold messages are in small font and thermostats are often in poorly lit hallways- far from ideal to see the hold status The control head needs a red led to indicate that a temporary hold is in effect

[@pauldoubler7600]

I totally understand what you're saying. I have the same issue as my thermostat is in a dark hallway as you mentioned mentioned have you found any way to make the font and numerals in the display larger? I haven't found anything at all.

[@akvinderkaur9626]

Thank you!! This is amazing Video and pretty much cleared everything. My question is can we completely shutdown (power off) and can power on again? Its unnecessarily running whole day and night

[@Hathead65]

Question, if I set the thermostat to 75, is there a way to get it to come on at 74 and shut off at 76? Right now it stays at 75 and runs too much!

[@rustyyoung2132]

Hey thanks. I don't see a link to the second video or the link to the manual. Like to have access to all.

[@josesandoval7263]

Thanks buddy it was hell before your video

[@taibiservent]

Hey John, how would you correct this problem the thermostat shows “!” On the screen It won’t accept the time of the date even though it says it saved and I can’t get into the programming

[@trinimartinez-x4d]

Have the Honeywell Home pro series. Why isn't Option for permanent or temporary hold not displaying

[@pemter]

I program my thermostat and it doesn't conform. it is set to go to 20 at 10 pm and to 24 at 630am. However some between those settings it goes to 24 beforw 630 am. At one tine when I noticed it the "restore" indicator appeared beneath the heat on indicator. How can I correct this ? Thanks in advance for your response

[@JayDays.]

If its set to programable does that mean once it reaches the desired temp it will turn off then back on based on the differential temperature ISU code 303? Mine currently runs at ISU 365 stage 3 and it runs at 10minutes on and 10 minutes off but you didnt go over the codes functions

[@dogalcorn4292]

What is the triangle with the exclamation point warning or alerting me to!

[@Swivelsix]

@JohnFrancoNH Is there a way to set the thermostat to start cooling when the temp goes up 3° instead of every time it goes up 1°? I feel like it’s running way too much during the day

[@JohnFrancoNH]

Theres no way to change that value. You will have to fully program it for each of the 4 periods of the day accordingly. You can try decreasing the CPH which is the amount of cycles per hour it can turn off/on your system. So it doesnt turn on as frequent

[@tifanipitcock1984]

How do I get it to turn below 70 degrees

[@ElaineSpear-q9u]

The triangle is on above the fan auto is that suppose to be on. Thanks

[@BSpecUSA]

My Thermostat says its 70 degrees in my house and it is actually 61.. How do you change the TEMP calibration on the Thermostat? its soo OFF.. Thanks

[@EC-om2mr]

How do i get my thermostat to turn off the heat when not needed. Ran A/C system during the summer and it would automatically turn off when set temperature was reached. We have now switched to heat and it continues to run past the set temperature and when i turn it to off it continues running (?????)

[@xtiminater]

At 2:38 you press + and the screen changes from (Mode, Menu, Fan) to (Hold, Menu, Cancel). When I press +, the options stay exactly the same (Mode, Menu, Fan). What am I doing wrong?

[@KingCalumari]

The hold option only appears for me when the schedule is set.

[@kathleenfinnegan4606]

informative thank you but I do have a small triangle with ! in the center? can you address that ?

[@JonathanRogers1982]

Have just bought a Honeywell RTH6360 and the room says it's 78 but it's really 73 so the AC keeps going and doesn't get read the temp. How do I calibrate the temp?

[@JohnFrancoNH]

thermostat may be in a bad spot or in direct sunlight. make sure there nothing block the thermostat

[@jayf1133]

Hey man, great video. The default password of 1234 is the first thing the other people in my house guessed and they keep unlocking and changing the temperature. It won’t allow me to change the password. If I physically remove the face of the unit off the wall, will everything still run with the last settings it was on? I hate this thermostat.

[@mpharney406]

Great video but I'm still stuck. My thermostat says " unlock", and I don't know how to get out of this.

[@mikeschott871]

Thanks. Special, additional, thanks for NOt running a background music/ sound track. WHo thinks that's a good iDea? Why?

[@SummitChaser]

Hi thank you for taking the time to find these codes. I am trying to review your video to see if a code is specific to where the cool air goes. My AC used to flow strong in the master bed / closet. I went into the ISU and may have adjusted 120/2 or 300/3. One of those changes Celsius and Fahrenheit. I thought I changed it all back but my bedroom at 90’ used to feel manageable and the Ac turned on quickly. Now at 84’ it feels hotter like 95’. Of course the apartment setup is flawed so the AC is in the master and the thermostat is across the other side of the 2 BD apt it barely cools the bed but does cool the living room. So if you know of any settings that may adjust Cool settings or where/how the unit turns on or flows I would appreciate it greatly.

[@SummitChaser]

PS- is there a URL you can share for where u finally found the codes with the other model. Thanks!!!!!

[@SummitChaser]

Sorry for so Many questions but this is a legit concern as it’s 120 here. The very first code you mentioned 120. You said they were option zero through four, but I have no idea what any of those numbers refer to. You may have a basic understanding of how these devices work and you may know how to interpret those numbers, but I have no idea which number I would use if I change the setting I have no idea how to determine how to set it back. I’d experiment but it seems that is a complicated way of trying to figure this system out.

[@SummitChaser]

Okay can finally zoom into your video to see the paper. Could not initially zoom or read your reference papers.

[@JohnFrancoNH]

check out my thermostat playlist. i have a video going over all the ISU functions #s and closer up

[@aldona99]

@@JohnFrancoNHwhere is it? I’d like to print it out myself, do you still have the website?

[@joshuamitchell5481]

John love this video

[@levykhuu7344]

You can help me , right now too hot ,I’m try reset the same this video but my home too hot, I don’t know why my house big number alway 87 ,I control little number 70 or 65 but big number not down,help me how do that .

[@JohnFrancoNH]

if your a/c is working correctly that big # takes some time to come down. A/C could need to run for a whole day to manage the heat load in your home and to actually cool. Always leave it on so it manages the temp 24/7. Huge temp differentials put a huge strain on the system and will not cool as fast as leaving it set all day all week to hold 75F for example.

[@jacksiscassagnol3552]

The previous owner had a lock on this so the menu option doesn't show. Instead, I see the unlock option. However, I can't unlock cause I don't have the passcode. Help!

[@tommywatterson5276]

Honeywell should take this piece of technical crap off the market for users that aren't engineers or computer programmers.

[@bobjohnson3812]

My thermostat lights up when you press any button but is completely unresponsive no matter what button i press even though it lights up. How do i fix that issue?

[@Sukaibureika]

im trying to figure this out as well, any fix yet?

[@bobjohnson3812]

@@Sukaibureika nope still no answer lol

[@tokenman12]

My hold setting is completely gone… I press menu and it just says prog for the 1st setting

[@Tekefes]

Is there a way to change any of those ISU settings without factory resetting the whole device?

[@troycunningham5262]

If the batteries fall out, do you need to reconfigure the ISU or the adv. Setup options??

[@JohnFrancoNH]

Not if you put them in right away. If they stay out for months it could have total reset itself

[@JayMoonify]

What happens if the heat option is on, the room temp is 70, the set temp is 60? Does the unit stay off until the point the room reaches 59, then kicks on?

[@MrHihihihihi19]

My father has it set temporary hold which it goes to 62 and he told me the number on the bottom doesn’t matter that I just set it to 70 @ 8am & 70 @ 10pm.

[@showunmialfred9522]

My Honeywell Home switch is completely off. I mistakenly press the timer and since the device was off. it isn't easy to turn it on. Please advise. Thank you

[@deborahcarver9539]

What does it mean when the word battery is above the temperature number?

[@Tim7551]

Hi friend, Which option for Fan is better? Fan on or Fan auto? which option should I choose?

[@greenfly0917]

Fan Auto

[@muhammedkawateen3952]

Thank you for useful and clear explanation .

[@tomwinter3273]

It appears I have walked my thermostat because in the bottom middle of the thermostat it says unlock. How do I unlock the thermostat?

[@kat9857]

I have radiators and old system . Water radiators I can't find the right Isu and tried looking up . Any chance u could help me. No cool just heat . Haven't had heat in days landlord really mean. Any chance you could help me

[@JohnFrancoNH]

You should select "radiant heat" for forced hot water baseboard or old cast iron rads. So for ISU 200 try #3 and for ISU 205 #9

[@faithpeggar]

My ac stopped working. It says it’s on and I can use the controls but I cant get the fan to actually turn on and work

[@KeithBSII]

Me neither!! I'm not sure what to do!!

[@paulbunyan1682]

Best thing to do??? Throw it out and get a non programmable unit and install it. That is exactly what I did this morning!

[@sonjashirley239]

How do I switch off AC on to heat

[@Pink_Flaming0]

I cannot find the advanced set up for this thermostat in your comments. Can you please tell me the link?

[@JohnFrancoNH]

I have a seperate video for that. Check out my thermostat playlist

[@ChenJonathan-ql7se]

Very helpful!

[@indigostarr3223]

Just bought the house wife turned it into Celsius..th411says unlock when I do it says home number 5 back and select not sure what to do called the company they wanted two hondos.i can't afford it plz help I have just a forced air heat.

[@ericp9615]

Thank you for the isu list!

[@JohnFrancoNH]

Thanks for watching!

[@djb8078]

My reverse valve was stuck in heating mode . Should I change it to 0 ?

[@non8styTTV]

How do i change it back to where u got it its blowing cold air

[@KitsumaeJoyce]

My fan is on auto but it still won’t turn off, it’s going 24/7. I want it to temporarily turn off and on like a regular ac. We had to replace our ac unit 2 months ago and the fan has been going 24/7 ever since making my bill and humidity in the house go up.

[@juliancabello9169]

My thermostat is stuck on 32 for inside temperature. It was working fine until I replaced the batteries. It’s about 80 degrees inside and can’t get the ac to turn on

[@erswain1]

You said you'd post a link to the CODE SHEETS. Where's the link?

[@cathleen7551]

I have somehow “locked” my thermostat. Any idea how to undo that?

[@cathleen7551]

I figured it out! Factory setting is 1234

[@kmmb8266]

@@cathleen7551THANK YOU, THANK YOU, THANK YOU 😢 This has been driving me crazy for days!!!!!

[@lovingmassage6494]

How do you relax it

[@theresiahartanto3419]

thank you so much, you have explained it very clear

[@notabot3375]

What does it mean if there is a triangle with an exclamation mark in it?

[@JohnFrancoNH]

is an alert or reminder

[@denisehodge1823]

The thermostat set on air , it comes on but shuts off after a few minutes and shows compressor and we reset the thermostat is this normal

[@estashiab.5492]

What if mine doesn't have the fan option

[@db1825]

Hello - I have a question. I believe my sensor went bad. The temperature is home says 32 which is wrong as it’s about 95. I’ve done Factory reset confirmed it’s set for Fahrenheit in both advanced settings under ISU and in the basic settings. The schedule shows Fahrenheit so I know that’s not the issue. How do I check thrsensor and where is it at? Thank yiu!,

[@JohnFrancoNH]

yes replace with new thermostat unfortunately

[@arlene2691]

Thank you, This helps A lot.

[@billymandy6102]

What if my fan never shuts off even when I’m fan auto ? Maintenance came out said normal but I don’t think so. SMH

[@elenaa.pricov4733]

Great info. Thank you !

[@sandraburns5353]

Me too. Had a power glitch and can't get it to work l

[@percystarrSR]

I can’t get the heat to stay on even after the factory reset

[@CHarris73]

Why does my cool on continually flashing?

[@GodWarriorsArcAngels]

Your 👏 Awesome!!!