Some context might help. Was it working before but now has this error? If you're just installing it, had you connected it to your wifi and have the app running or .. That initially strikes me as an incorrect wiring error but, not sure how or when you're getting it.
You might want to give us some more detail to work with here.
Additionally, you might want to visit this Honeywell Support page for info as well. > https://www.honeywellhome.com/supportsearch?br={489B8F52-15F5-49DD-B283-40D30099A3A1}#q=Wi-Fi%207-Day%20Programmable%20Thermostat%20%28RTH6580WF%29
Let us know if this helps.
SOURCE: installing a honeywell CM900 wireless programmable thermostat
the analog unit uses just two wires for heat. red - white. there is a heat anticipator setting that must match the burner current. check your programmable specs and follow instructions.
SOURCE: honeywell deluxe programmable thermostat 69-1402m
Solution #2 as above worked (thank you very much!) to get to the programming mode, but on mine keeping Function #13 on the default setting of "0" maintained the AIR. Toggling the Temp button to "1" changed the system to conventional on/off at the programmed times.
SOURCE: Honeywell RTH230B
This my situation exactly. Changing from a 6 wire manual round Honeywell thermostat to a 5 wire Honeywell programable. Is there a way to maintain all functions?
SOURCE: rewire an old 2 wire thermostat to a honeywell 5-1-1 programmable
I connected the blue wire to the R and the white wire to the W on the old thermostat and shoved the new Honeywell 5-1-1 Day programmable thermostat up the first guys *** that i ran into at Canadian Tire
Thanks for your help
SOURCE: Even after replacing the battery, the programmable
Turn control to off. Remove the batteries for at least one hour. If the display message still reads "bat lo", leave control off, batteries out, and disconnect the red wire on back and wait another hour. Reconnect red wire, put new batteries in and turn system on. It's like a reboot.
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