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Posted on Jul 13, 2018
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My Honeywell thermostat has a code E43 showing and I am not able to connect using my mobile connection as in the past. It referred me to my users manual but I can’t find my manual

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Cindy Wells

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  • Honeywell Master 6,691 Answers
  • Posted on Jul 14, 2018
Cindy  Wells
Honeywell Master
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Joined: May 31, 2008

Honeywell has the manuals for most of their thermostats on their web site. Start here, https://customer.honeywell.com/en-US/Pages/Department.aspx?cat=HonECC%2520Catalog&category=Wi-Fi%2520and%2520wireless%2520models&catpath= , for the Smart thermostats.

The E43 error indicates that the thermostat can't communicate with the router. Make sure that the router can communicate with your WAN (wide area network). Check the power and that the Ethernet cable is plugged in and undamaged. Reboot the router (unplug it and wait before plugging in the power cord). If you recently changed the password or the router SSID (the name of the network that the unit uses in its communication), try resetting the internet connection. Similarly, if you have a new router, reset the connection. Make sure that you know the SSID, password and encryption for the router.

I've checked the directions to do this on the Focus Pro TH6320WF series. Press More on the thermostat for 3+ seconds until the screen displays two numbers and the button labels are Done, Back and Next. Press Next until the larger number on the left of the display shows 39. Use the Up/Down arrows to change this to 0. Press Done. Take another Wi-Fi enabled device (tablet, cell phone, laptop) and set it to look for other available networks. Find the network with Thermostat in the name and connect to that network temporarily. If you see a prompt about the type of network, call this a Home Network. Open your web browser and go to the thermostat's Wi-Fi set-up page. (If needed, navigate to .) Find your router's home network's name in the list of available networks. Press Rescan if the SSID is being broadcast but doesn't appear in the list. If the router does not broadcast the SSID, enter the router name in the text box. Enter the encryption mode for the router. Follow the on-screen directions and press the Connect button. Enter the router password when prompted for the information. Wait to see the Wi-Fi Setup Connection Success in the display. If it doesn't check if the password was correctly entered, including special characters.

I hope this helps. The manual for the Focus Pro thermostat is here: https://customer.honeywell.com/resources/techlit/TechLitDocuments/69-0000s/69-2736EFS.pdf .

Cindy Wells

5 Related Answers


  • 49 Answers
  • Posted on Oct 14, 2007

SOURCE: Intertherm to Honeywell thermostat

Typically if you have a yellow wire in the "y" terminal blue is used as common or "c". As far as your jumper from rc to rh, that will depend upon what type of heat you have. If all of your heat and cooling come from your packaged unit outside, yes you will need the jumper. If this does not work maybe you have a bad breaker or transfomer.



  • 104 Answers
  • Posted on Jun 18, 2008

SOURCE: Manual Thermostat replcaement with Programmable Digital unit.

Hopefully there are markings on the old t-stat as to what terminal is what.
on the honeywell 8000 use the heat pump labeling and then the standard wiring would be
R- red
Y- yellow
B- O/B
C- black
G- green
There should not be a bare wire, it probably just has the insulation stripped back way too far.
You should probably open the furnace and compare the terminal label in the furnace to the wire color. normally yellow and blue pass through the furnace and are wire nutted to wires going to the outdoor unit. In the furnace the white wire will connect to the w or w1 terminal. also, you will need to set the Honeywell stat to have the following parameters.
other parameters that I did not specify, you may read the manual and make your own decision but I recommend factory settings for the other parameters


  • 1 Answer
  • Posted on Sep 19, 2008

SOURCE: Transfer images from mobile to computer

i have Nokia 6630..i want to tranfer images from my mobile to pc through USB but i dont know how to connect it & i dont know how to use it..can you help me with this problems?


Perry Putnam

  • 144 Answers
  • Posted on Jan 21, 2009

SOURCE: replacing thermostat: tstatccshp01 with th8320u1008

Hook up o to o/b, then in the installation programming set the change over valve to energize in cool. Then hook up w to aux. Good luck.


  • 2 Answers
  • Posted on May 28, 2009

SOURCE: GPRS setting required for LG KG200.

Go to http://bsnl.co.in/service/mobile_gprswap.htm

Scroll down & click on CLICK HERE TO DOWNLOAD GPRS/MMS/WAP setting

you will be taken to service portal - here select your state and follow on screen instructions your problem will be solved

good luck


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Related Questions:


Thermostat recognizes wifi but remains off-line

f your thermostat either displays a no Wi-Fi icon on its screen or shows up as offline on the Lyric or Total Connect Comfort app, it is missing the connection to the Wi-Fi network.
A few preliminary things to check:
  1. Does your thermostat have power? If not, check to make sure your C wire (common wire) is connected to your Honeywell thermostat. All Wi-Fi and connected thermostats (except the Lyric Round model, which can operate using Phantom Power/Power Stealing) requires a C wire to power your thermostat. Regardless of model, if you use Apple HomeKit with the thermostat, a C wire is required. If you are not sure that you have a C wire, please reference our Thermostat Wiring Compatibility page for more information.
  2. Honeywell Wi-Fi thermostats are only compatible on the 2.4 GHz frequency. Newer routers can operate on multiple bands, usually 2.4 GHz and 5.0 GHz. Please check that your router is emitting on the 2.4 GHz frequency.
  3. Check the distance between the thermostat and the router to ensure that the thermostat is in range of a Wi-Fi signal. A simple way to check this is by looking at the Wi-Fi signal range on a mobile device when standing near your thermostat, but note that most mobile devices usually pick up 2.4 GHz & 5.0 GHz Wi-Fi signals. In extreme cases a Wi-Fi range extender or repeater may be needed to ensure you have sufficient 2.4 GHz Wi-Fi coverage throughout your house or business.
  4. Check that your router's firewall doesn't block the thermostat.
In addition, please follow the next steps:
  1. Make sure your Wi-Fi router is powered and broadcasting. Restart your router by pressing the OFF/ON button or by unplugging the device from the socket for approximately 5 seconds and plugging it back in.
  2. If the problem persists, please reset your thermostat. Reference your user manual for instructions on how to reset your thermostat. The manual or quick start guide will have come inside your thermostat's packaging.

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