A.O. Smith Innovo 12-160, Installation, Service & Maintenance Manual

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Fig. Actual water
temperature Fig. Setpoint Fig. Standby
3.2.1.3 External ON mode
In the external ON mode, the water heater will respond to a heat demand when the relay
switch is closed. Use parameter
004
to switch on the setpoint (parameter
005
) of the
external ON mode.
3.2.2 Error conditions
If there is an error, the display shows an error code. Error codes always have one letter
and two digits.
Fig. Error code display
Note
When the display shows an error code, try to reset the water heater.
Contact your service and maintenance engineer or supplier when the water heater does
not restart or when the display shows the error code again.
3.2.3 Service conditions
When the display shows
Src
the water heater functions normally but requires periodical
service. Contact your service and maintenance engineer.
Fig. Service required display
Note
Regular maintenance extends the service life of the water heater.
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22 User part