Older ecotecs with 4 circular buttons and 2 temperature dials
- Press ‘i’ and ‘+’ button
- Press ‘i’ key when D0 is shown ( if not shown scroll to D0 using ”+’ and ‘-‘ )
- Using ‘+’ and ‘-‘ adjust the power level
- Press and hold the ‘i’ approx 5 seconds until display no longer flashes (this saves to memory)
- Press ‘i’ and ‘+’ button to exit diagnostic mode, alternatively do not press any key for approx 4 minutes