24:41, A limit tripping in a furnace has no effect on a thermostat. Especially a T6. Furnace Limits do not drop voltage to a thermostat. Would be new to me too, but it isn't because it does not happen. A dirty filter will trip a limit but that results in a fault code lock out on the furnace not dropping voltage to the tstat.
That's what I was thinking too but it's the only out of the box reason I could come up with. The inspectors notes said after a few minutes the system would cut off, and after a few minutes of running with the filter in it cut off. That was the only problem I could find and haven't been called to go back out since so I'm confident that was it
why does every HVAC vedio have the smoke alarm beeping hahahahaha. Noone ever changes the battery hahaha. You always have great content. keep em comming please.
You could have checked the static pressure . If the filter is that plugged. You could see the circle of the blower motor. So it was sucked into the blower cabinet. I bet that the secondary heat exchanger is plugged as well.
your thermostat is no longer receiving power because the furnace's safety mechanism, "high limit switch," has tripped, shutting down the system due to a detected excessively high temperature within the furnace, effectively cutting off the 24 volt signal needed to operate the thermostat
The batteries are only for backup in case the power goes out. The thermostat is a 24v power stealing stat. This avoids having to reprogram the thermostat.
I've come across a crap ton of T6 stats powered directly with no batteries, and when they lose power and cut back on the only thing I have to do is reset the time not the entire programing of the stat. But that's just me, maybe I'm lucky
honeywell controllers has always done this. (shutting system down 2 degrees before) as they anticipate if an oversized system will hit setpoint without another call for heat. if it does not happen within a selected amount of time another call for heat will be given to achieve setpoint.
Yeah I noticed that with my thermostat once and was confused but then noticed that my aunts does the same thing, if it's set too one temp it'll warm or cool (depends mode) too the set temp but in heat mode if it's set high or cool mode if it's set low and you turn it down too 2 degrees above the room temp (in heat mode) or up too 2 degrees below the room temp (in cool mode) it'll cut off and then after a certain amount of time it'll come back on then room or cool too the settings
Like one time it was 80 in my house from my unit not keeping up and I turned my thing up too 79 too give the unit less of a load and it turned off and I went "Wtf!" But then 7 minutes it came back on too cool the temp down too that setting of 79
@michaelpiontek169 Okay now that ain't supposed too happen cause when mine is cooling down from the hot day it stays running the entire time till it actually satisfies just when it comes too me turning it up when it's super hot outside too a degree below the temp reading it desides too turn off for just a couple minutes then come back on
good video,work like detector
Smoke detector in a vacant house sounds like sonar
🤣 everyone noticed it but i didn't
💀💀
I was having flash backs from my time in a WW2 sub...and I'm not even old enough to have been alive then.
Good job AB. Keep up the good work!!
24:41, A limit tripping in a furnace has no effect on a thermostat. Especially a T6. Furnace Limits do not drop voltage to a thermostat. Would be new to me too, but it isn't because it does not happen. A dirty filter will trip a limit but that results in a fault code lock out on the furnace not dropping voltage to the tstat.
That's what I was thinking too but it's the only out of the box reason I could come up with. The inspectors notes said after a few minutes the system would cut off, and after a few minutes of running with the filter in it cut off. That was the only problem I could find and haven't been called to go back out since so I'm confident that was it
Good catch!
Thanks!
Nice work AB.
Much appreciated
Good job bro!
Thanks!!
Man, if it's not one (chirp!) thing, it's another (chirp!). Nice work figuring it out!! (chirp!)
🤣 I'm so used to it i didn't even notice it
@@AB_HVAC LOL...I hear them a lot in Curtis's videos too. 😂
why does every HVAC vedio have the smoke alarm beeping hahahahaha. Noone ever changes the battery hahaha. You always have great content. keep em comming please.
It's so common on these rentals man...I swear I don't even hear it anymore.
Had one do the same. Wild asf. Limit trip would cause tstat to go blank. Goodman package unit like 8 ish years old.
Same type of thermostat?
@AB_HVAC nope. Honeywell 5000. Checked wiring, wasnt in series with R wire. Just goes to show we havent seen everything and never will
@AdamCraig-ir6yl man, my favorite thing about the trade. Thanks for watching!
You could have checked the static pressure . If the filter is that plugged. You could see the circle of the blower motor. So it was sucked into the blower cabinet. I bet that the secondary heat exchanger is plugged as well.
your thermostat is no longer receiving power because the furnace's safety mechanism, "high limit switch," has tripped, shutting down the system due to a detected excessively high temperature within the furnace, effectively cutting off the 24 volt signal needed to operate the thermostat
I don't doubt that. They're 80% systems though they don't have a secondary heat exchanger.
ISU 303. It’s a deadband setting. Ran into this before
If you knew that off the top of your head dude you deal with honeywell too often 🤣
@ I wish I didn’t 😂
The batteries are only for backup in case the power goes out. The thermostat is a 24v power stealing stat. This avoids having to reprogram the thermostat.
I've come across a crap ton of T6 stats powered directly with no batteries, and when they lose power and cut back on the only thing I have to do is reset the time not the entire programing of the stat. But that's just me, maybe I'm lucky
"Offset" is the difference. Expressed in temperature. between the set point temp and the actual cut in of the thermostat.
Oh yeah, that's the word I was looking for 😅
honeywell controllers has always done this. (shutting system down 2 degrees before) as they anticipate if an oversized system will hit setpoint without another call for heat. if it does not happen within a selected amount of time another call for heat will be given to achieve setpoint.
Yeah I noticed that with my thermostat once and was confused but then noticed that my aunts does the same thing, if it's set too one temp it'll warm or cool (depends mode) too the set temp but in heat mode if it's set high or cool mode if it's set low and you turn it down too 2 degrees above the room temp (in heat mode) or up too 2 degrees below the room temp (in cool mode) it'll cut off and then after a certain amount of time it'll come back on then room or cool too the settings
Like one time it was 80 in my house from my unit not keeping up and I turned my thing up too 79 too give the unit less of a load and it turned off and I went "Wtf!" But then 7 minutes it came back on too cool the temp down too that setting of 79
@@EthanHurley-ky4hi correct, if my ac falls 3 degrees behind on a hot day, it will cycle off at 2 degrees of set point then continue.
@michaelpiontek169 Okay now that ain't supposed too happen cause when mine is cooling down from the hot day it stays running the entire time till it actually satisfies just when it comes too me turning it up when it's super hot outside too a degree below the temp reading it desides too turn off for just a couple minutes then come back on
I could be wrong, whatever it was doing was normal in my eyes.
Click on the triangle logo it will tell you what it wants could be a filter change
Offset
What do you mean?
First job on every service call- disable that freakin smoke alarm 🫨
🤣🤣