Why is my TH1100DH/TH1110DH/TH1210DH showing an error message HI? What does it mean?

Last updated

HI = The ambient temperature is above 122F (50 degrees C). Remember it can take several hours for a newly installed thermostat to normalize to room temperature. If the room temperature is lower than 122F (50 degrees C) and the thermostat is still displaying HI replace the thermostat.

CONTACT US

Message Resideo

MESSAGE US

Message us on Twitter for help with our products.

Monday through Friday:
9am to 6pm CDT
Saturday and Sunday:
9am to 5pm CDT

Live Chat with Resideo

CHAT US

Connect with an agent for quick assistance.

Monday through Friday:
9am to 8pm CDT
Saturday and Sunday
9am to 5pm CDT

Call Resideo

CALL US

Speak directly with an agent for help with our products.