A.O. Smith BFC Cyclone, Installation, User And Service Manual

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3.6.3 Service conditions
The figure shows the message SERVICE REQUIRED. If this message appears, the water
heater needs a service and maintenance inspection. In this case, contact your service and
maintenance engineer.
Note
Regular maintenance extends the service life of the water heater.
Note
The message SERVICE REQUIRED is based on the number of expired burning hours and
the preset service interval. If the service interval has been incorrectly selected, contact
the service and maintenance engineer for instructions on how to rectify this. Information
on the frequency of maintenance is provided elsewhere in the manual (see section 10).
3.6.4 Anode warning
This message appears when the anode protection is no longer active. If the message
appears, you must contact your service and maintenance engineer.
Note
The water heater continues to function when this message appears. If you ignore the
anode warning, the tank protection cannot be guaranteed. The warranty will be void.
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