Question about Honeywell RTH8580WF WiFi Thermostat
HVAC guy was here trying to figure out why the furnace was only blowing cold air. We have warm air, but the fan will only work in the on setting
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.
Posted on Feb 18, 2015
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
You probably have a loose or broken wire to the fan relay. Check the wires on the thermostat first. Pull up on the bottom of the thermostat to remove it from the wall plate. You should see several screw terminals and the conductor wires that should be connected to them when you look at the wall plate. Check if any of the wires are disconnected or broken. If a wire is broken, strip a portion of the unbroken section of the wire and secure it to the appropriate screw. (The fan relay terminal is G for most setups.) If none of the wires are loose or broken, then you have to check for damage to the wires between your heating system and the thermostat or at the heating system. It could be a bad wire going to the jumper on control board or damage to the board itself.
I hope this helps. If the problem is not at the thermostat, you may need to have a professional diagnose and fix the problem. However, if you post additional comments about your heating system, Fixya experts may be able to help you diagnose the problem.
(we had the broken wires at the thermostat keeping the fan from working in the past. It's an easy fix if you are willing to handle small wires carefully.)
Posted on Jul 06, 2013
Tips for a great answer:
Jun 12, 2018 | Galaxy Cell Phones
May 18, 2018 | Heating & Cooling
Jun 05, 2016 | Honeywell RTH6580WF Wi-Fi Thermostat
Apr 05, 2016 | ZTE Cell Phones
Dec 29, 2015 | Honeywell Programmable Thermostat Heater
Mar 08, 2014 | Honeywell RTH6580WF Wi-Fi Thermostat
Dec 06, 2011 | Coby Kyros 7" Touchscreen Tablet
Oct 20, 2008 | Hunter Fan Company 5/1/1 Programmable...
234 people viewed this question
Usually answered in minutes!