How do I Reset Total Rain?
To reset the total rain, press the MENU button until the rain field flashes.
Press the up key until the total rain is showing in the display field (the display alternates between 1 hour, 24 hour, week, month and total rain increments).
Press the enter key four times until the total rain reset function is flashing.
The rain and CLEAR will begin flashing. To reset, press enter key for 3 seconds and the 1 hour, 24 hour, week, month and total rain will reset to 0.
Note that the total rain is the accumulated amount since the last reset, and it not yearly rain, so if you wish total rain to display the yearly rain, you will need to reset the total rain to 0.00 on January 1.