TOUCH-UNRESPONSIVE
Honeywell · T10 Pro Smart Thermostat with RedLINK Room Sensor
The thermostat display shows information but does not respond to touch input — try pressing firmly in the center of buttons, clean the screen with a dry microfiber cloth, and power cycle by removing the unit from the wall plate for 30 seconds; if the touchscreen remains unresponsive after power cycling, the digitizer may be damaged and the thermostat needs replacement
Error TOUCH-UNRESPONSIVE on the Honeywell T10 Pro Smart Thermostat with RedLINK Room Sensor means: Touchscreen Not Responding. The top-ranked community fix is “Replace Thermostat Digitizer Assembly” (hard difficulty, ~90 min, DIY cost: $15-$30). 2 community-ranked fixes available below.
Published February 2026 · 2 fixes · thermostat
Content is based on manufacturer service documentation, community repair experience, and OEM technical bulletins. Always verify with your owner's manual.Learn about our editorial standards.
While many thermostat repairs can be done safely at home, consider hiring a qualified technician if:
Average professional repair cost for this issue: $150-$250.
thermostat · 2 fixes
thermostat · 2 fixes
thermostat · 2 fixes
thermostat · 2 fixes
thermostat · 2 fixes
thermostat · 2 fixes
thermostat · 2 fixes
Thermostat Shows Offline in App
"Aux Heat" Displayed
Blank/Dead Display — No Power
HVAC Control Board Fuse Blown
"Cool On" Flashing on Display
"Em Heat" or Emergency Heat Mode
"Err" Displayed on Screen
Fan Running Constantly
The Honeywell T10 Pro Smart Thermostat with RedLINK Room Sensor has 8 other known error codes:
Error code TOUCH-UNRESPONSIVE also appears on 7 other Honeywell models:
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