Honeywell RTH221B Support Question
Honeywell RTH221B Support Question
Find answers below for this question about Honeywell RTH221B.Need a Honeywell RTH221B manual? We have 1 online manual for this item!
Question posted by Kcalamia on September 11th, 2019
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 heat
Current Answers
Answer #1: Posted by Odin on September 11th, 2019 4:23 PM
Odin
Member since:
April 10th, 2010 Points: 41,236,700
Member since:
April 10th, 2010 Points: 41,236,700
See Temperature settings cannot be changed at https://www.manualslib.com/manual/423739/Honeywell-Rth221b.html?page=2#manual. If the issue persists or if you require further advice, you'll have to consult the manufacturer: use the contact information at https://www.contacthelp.com/howneywell/customer-service.
Hope this is useful. Please don't forget to click the Accept This Answer button if you do accept it. My aim is to provide reliable helpful answers, not just a lot of them. See https://www.helpowl.com/profile/Odin.
Related Honeywell RTH221B Manual Pages
Owner's Manual - Page 1
...; or button to set its start time and its settings when the time display flashes. The same period and settings are awake and at a comfortable level when you need to change the setpoint. If the thermostat is in Heating mode. During the wait time, the message Cool On flashes on .
Programmed schedule...
Owner's Manual - Page 2
... batteries) flashes on the screen.
Cool On is opened.
E1 appears on the screen and the period display will flash to indicate that period will flash.
To program the temperature settings for each of difficulty
4. screen. Replace the thermostat. Honeywell's sole responsibility shall be sent to save
them and exit. (The changes are...
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