20 Most Recent Honeywell RTH8580WF WiFi Thermostat Questions & Answers


The thermostat probably was reinstalled incorrectly.

Honeywell... | Answered on Oct 14, 2016


This is not going to be easy. Check the wiring in the wall to look for the third wire. If they did not run one, you have to run new wire to the furnace and thermostat. If they stapled that wire to the walls inside studs, then it is going to be even harder to run the new wire. Once you run that new wire then you have to locate the connection in the furnace that has the common (c) wire for the transformer. Check you tube to see if the have any how to video.

Honeywell... | Answered on Oct 13, 2015


It's doing whats it is supposed to do and that's regulating the ambient temperature to your set temp.

Honeywell... | Answered on Sep 27, 2015


Is there also an on/off switch for the fan on the furnace itself? If so check it make sure its set to on. Also check the on/off contacts of the switch on the t/stat to make sure its working.

Honeywell... | Answered on Feb 18, 2015


Press the FAN & the up arrow @ the same time to get into installation programming. Follow the set up numbers correlating to options in the install instructions...Make sure it is programmed for heat pump & if you have Auxillary heat. Hit Next until you get to the reversing valve position O or B ( reversing valve energized in a call for heat or cool) and switch it to the opposite of what is in the current program. Hit Done & you should be good. Hope that helps.

Honeywell... | Answered on Dec 12, 2013


Press the FAN & the up arrow @ the same time to get into installation programming. Follow the set up numbers correlating to options in the install instructions...Make sure it is programmed for heat pump & if you have Auxillary heat. Hit Next until you get to the reversing valve position O or B ( reversing valve energized in a call for heat or cool) and switch it to the opposite of what is in the current program. Hit Done & you should be good.

Honeywell... | Answered on Dec 12, 2013


The WiFi has to be on. to get to the main programming, press fan & the up arrow @ the same time for about 5 seconds. Now that you are in the programming mode, you need to scroll through to, I believe level 39 and turn it ON. This will enable the WiFi. Then press done to get out of programming mode. Your thermostat should start searching now as long as there is WiFi to connect to. Then you need to register the stat. Hope that helps.

Honeywell... | Answered on Dec 10, 2013


The WiFi has to be on. to get to the main programming, press fan & the up arrow @ the same time for about 5 seconds. Now that you are in the programming mode, you need to scroll through to, I believe level 39 and turn it ON. This will enable the WiFi. Then press done to get out of programming mode. Your thermostat should start searching now as long as there is WiFi to connect to. Then you need to register the stat.

Honeywell... | Answered on Dec 10, 2013


Unfortunately, I know what your talking about...have several in remote Drs. offices, (one in my home), & they all click when calling for heat, cool, or fan. Other than that, it is a great thermostat with easy to use free apps.

Honeywell... | Answered on Dec 10, 2013


Replace unit.

Honeywell... | Answered on Oct 20, 2013


Remove power from the unit and reconnect. This will reset the unit.

Honeywell... | Answered on Oct 15, 2013


Check your red and white wire connection they are crossed or shorted some were.

Honeywell... | Answered on Oct 15, 2013

Not finding what you are looking for?
Honeywell RTH8580WF WiFi Thermostat Logo

21 questions posted

Ask a Question

Usually answered in minutes!

Top Honeywell Heating & Cooling Experts

Bill Long

Level 3 Expert

603 Answers

Paul Carew

Level 3 Expert

3416 Answers

Cindy Wells

Level 3 Expert

5869 Answers

Are you a Honeywell Heating and Cooling Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

View Most Popular

Honeywell Heating & Cooling

  • Honeywell Heating & Cooling

Most Popular Question

hoe fix honeywell rth 9580wf1013 wifi

  • Heating & Cooling
Loading...