Question about Honeywell Programmable Thermostat Heater

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I have a Honeywell RTH6400B thermostat that reads in farenheit.How do I switch it to Celsius?

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  • sledcurt May 11, 2010

    Found an online manual that had the solution.

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Go to myhome.honeywell.com and search for a manual for your model number thermostat on the right hand side of the page

Posted on Oct 03, 2009

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1 Answer

How to change Honeywell TH3210d1004 thermostat from Celsius to farenheit


Press and hold up and down temp buttons together to enter settings menu. Then press up to option 14. Press down to change to option 0 (Fahrenheit). 1 is Celsius. Press up and down together to save and exit. Good Luck!!

Apr 21, 2017 | Honeywell Heating & Cooling

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How do I switch the honeywell RTH4300B thermostat from reading in Fahrenheit to Celsius?


To start you have to push and hold the up and down buttons simultaneously until the screen displays "setup" across the top. There will be a number on the left, and a number in the right. Press the UP arrow until the number on the left reads 14, The number on the right should read 0. Press the DOWN arrow to change it to 1. Once this has been done you can press the RUN button to save the changes, and exit the setup screen. Your display will now read Celsius,

Apr 18, 2013 | Honeywell Programmable Thermostat Heater

2 Answers

Honeywell rth 2300 celsius reading


Press both up and down buttons for 5 seconds
Release
press both up ans down buttons for 5 seconds again
Release
14 and ? small 0 will appear. Z?ro is for farenheit.
Use th? up arrow to change the 0 to 1 for celcius

Sep 24, 2012 | Heating & Cooling

1 Answer

I want to switch from celsius to farenheit I have a honeywell RTH2310


Press and hold the ON button for 5 seconds. That should switch it to farenheit.

Hope this helped you.

Jun 13, 2011 | Honeywell Programmable Thermostat Heater

1 Answer

How do I switch the honeywell pro4000 thermostat from reading in Fahrenheit to Celsius?


Hi, The procedure is fairly simple.... the easiest way is for you to look up the manual and have the proper steps right in front of you...
Here is a tip that tells you how to get a manual for most any Honeywell productonline...

Manual Honeywell How to Find Honeywell Manuals

heatman101

Nov 07, 2010 | Honeywell Programmable Thermostat Heater

2 Answers

I want to change my TH6110D1013 honeywell thermostat to celsius . how do i do it?


You need to go into the setup mode to change it. Push and hold the i button along with the increase and decrease buttons. All the segments on the display will appear for about three seconds, then setup number will appear to the left and factory setting to the right. Change the setup number by pressing the (i) button until you get to 14. This is the degree temp. display, factory setting is 00. Use the arrow up key to change to 01 (celsius).To exit setup, push and hold the(i) key until the display returns to normal.

Oct 09, 2009 | Honeywell Programmable Thermostat Heater

2 Answers

Can't change my thermostat from fahrenheit to celsius.


When you do your system setup, Function 320 controls your temp. format. Set Function 320 to 1(celsius); Then press DONE. This will solve your problem.( Function 320 is defaulted to 0-Farenheit).

Feb 15, 2009 | Honeywell Programmable Thermostat Heater

1 Answer

Replacement of Honeywell thermostat CT3200A


I can't find that model. The 3200A is (I think) a standard heat/ac unit. If the other unit is that type, you're okay. There are usually instructions with these stats for wire assignments.

Nov 03, 2008 | Honeywell Programmable Thermostat Heater

3 Answers

Switching thermostat from farenheit to celsius


My thermostat was set on celsius and couldn't get it to change back to fahrenheit. My son suggested pressing both up and down arrow buttons at the same time and it worked. It changed back to fahrenheit.

Feb 16, 2008 | Honeywell Programmable Thermostat Heater

2 Answers

Celsius to Farenheit issue


Maybe we can trade ovens!! Mine is in Farenheit and I'm trying to figure out how to put it back in Celsius!!

Armen
Montreal, QC, Canada

Dec 04, 2007 | Kenmore 95822 / 95824 / 95829 Electric...

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