Indoor and Outdoor Temperature Stuck at a fixed value (example 140 degF).
This is generally caused by a corruption in memory, sometimes by third party software. A factory reset will restore the memory to default conditions.
- Press and Hold the UP arrow key for 30 seconds to restore the display console to factory default. The console will beep and reset after 30 seconds.
- Let go of the UP arrow key.
- Wait several minutes for the outdoor sensor to resync with the console. Do not touch any buttons while waiting.