The "Welcome" screen is the normal startup. You need to complete the on-screen setup.
Remove the protective film from the screen. The thermostat should automatically begin its setup prompts. Just follow the questions on the display. It will ask about your system type, Wi-Fi network, etc., to program itself.
IF THAT DIDN'T WORK: If the screen is stuck on "Welcome" and not progressing, the issue is likely power or a wiring fault.
- Double-check all wire connections are secure in the UWP wall plate terminals. Gently tug each wire.
- Confirm the R-switch on the wall plate is in the correct position (up for 1 R-wire, down for 2 R-wires).
- Verify power is restored at the circuit breaker and furnace switch.
- Ensure the furnace door is completely closed.
HEADS UP: If you still see only "Welcome" after checking all connections and power, visit honeywellhome.com/support or call 1-855-733-5465.