Sammic DS-12 Mode D'emploi page 21

Err2 The electrical current connects and disconnects. If the error persists it means that the current
frequency is not 50 or 60 Hz or that the timer is damaged.
Err3 The control does not receive any signals from the camshaft.
Wait until the camshaft returns to the operation position and the error disappears.
If the error does not disappear and the camshaft continues to turn, check that the connection
cable between the engine and the control is not frayed (fig. 6, H) and that the optical sensor is in
its place (fig. 6, E).
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