How do I fix a blank display on my TH1100DH/TH1110DH/TH1210DH thermostat?

Last updated

If the thermostat is battery powered, check/replace your batteries. If the device is common wired, try and power it up with batteries. If that fails to power up the thermostat, you may need to involve a technician. If batteries do power up your common wired thermostat, check your breakers, furnace power switch, furnace door kill switch to insure your system is powered. If your system is fine, and the thermostat only works on batteries, you may need to involve a technician.

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.