Honeywell RTH221B Support Questions
View all Honeywell RTH221B questions
1 - 15 out of 33
All Honeywell Questions
Honeywell - System Display Shows Off Not Able Change.
thermastat is on batteries are good. System display shows off but we can't change to show air or hea...
thermastat is on batteries are good. System display shows off but we can't change to show air or hea...
(Posted by Kcalamia 4 years ago)
Honeywell - Reset My Rth221b Thermostat
How Do I Reset My Honeywell Rth221b Thermostat
How Do I Reset My Honeywell Rth221b Thermostat
(Posted by Anonymous-165037 5 years ago)
Honeywell - Just Moved Into This House And Have No Idea How To Set The Thermostat
L
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(Posted by ramoncarlos45 8 years ago)
Honeywell - My Return Keeps Flashing On My Honeywell Rth221 Why?
(Posted by Dmiller74760 9 years ago)
Honeywell - Rth9590 Touchscreen Thermostat: How Do I Access System Settings?
I have installed the Honeywell thermostat and followed the setup process. However, I need to change ...
I have installed the Honeywell thermostat and followed the setup process. However, I need to change ...
(Posted by jim86825 9 years ago)
Honeywell - Unbelievable Amount Of Info You Ask To View A Fricken Manual Ridiculous
Really?????
Really?????
(Posted by owlyowl 9 years ago)
Honeywell - How To Reset A Honeywell Thermostat Pro 1000/2000 Series
It shows the current temp in room. when you go to setwhat the temp is set for the display lights up ...
It shows the current temp in room. when you go to setwhat the temp is set for the display lights up ...
(Posted by jonifolsom 9 years ago)
Honeywell - Why Does A/c Turn On Then Quickly Off 5 To 8 Times Before Staying On.
Set to 72. unit turns on at 74/75 and turns off at 70/69 when working properly. Recently unit turns ...
Set to 72. unit turns on at 74/75 and turns off at 70/69 when working properly. Recently unit turns ...
(Posted by big5618 9 years ago)
Honeywell - Installed Model # Rth221b Honeywell And Heat Will Not Turn Off
(Posted by bullwhfl 9 years ago)
