FAQ: I got a Hardware error 02 on start up

[Support]

This error indicates that excessive noise was detected during start up. 

The noise may have been detected through the probe, if it was connected.  Noise detected through the probe does not indicate a fault.  

If this message is displayed turn the unit off, disconnect the probe and then turn it back on. 
If the message is consistently displayed with the probe disconnected then contact Otodynamics

Otodynamics Support Team