Buttons Not Working
Symptom 1
The monitor powers up and displays information, but one or more of the buttons on the monitor face (usually the Menu or Menu | Back button) do not work.
Resolution 1
This is a hardware issue, usually caused by corrosion on the circuit board. The PM must be replaced.
Symptom 2
Not all buttons on the monitor face power up the monitor. Only pressing certain buttons or rowing/skiing will power up the monitor. After the monitor is on, some buttons may not work unless pressing hard.
Resolution 2
The keypad may be aging or worn and cannot make the connection. The PM3/PM4 keypad, part number 1451, should be replaced. See also: