Thermostat dead, showing 22 on screen.

[koalamotorsport]

Anyone seen this. Thermostat suddenly starts showing 22 on the screen, nothing else. Will not react to any button press. Powered it down for 20 minutes, power back up, 22 appears. Bueler?

[INSTEON John]

Try this to reset the unit:
1. Open the T-stat front, so you can see the main board.
2. Press the SW3 tact switch located in the lower center of the board for two seconds.
3. Close the T-stat onto the base plate.
The unit should power up normally. A "22" message means there is a communications failure between some ICs.

[koalamotorsport]

Thanks John, that worked. For now. Appreciate the response.