A.O. Smith SGS - 100, Installation, User And Service Manual

Page: 70 / 121

Instruction manual SGS 67
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8.4 Service condition
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
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 (14 "Service interval").
8.5 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no longer active.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.
8.6 Q/T Sensor warning
This message appears if the Q/T sensor has not been
connected (properly) but has been selected in the
service programme (12.9.5 "Setting the Q/T sensor").
If the message appears, you must contact your
service and maintenance engineer.
8.7 Collector temperature warning
This message appears whenever the collector
temperature is too high. This message disappears
automatically. If the message does not disappear, you
must contact your service and maintenance engineer.
!!! WARNING !!!
MAX. BURNING HOURS:
SERVICE REQUIRED
!!! WARNING !!!
POWER ANODE
MALFUNCTION
!!! WARNING !!!
Q/T SENSOR NOT
CORRECTLY CONNECTED
!!! WARNING !!!
TEMPERATURE
COLLECTOR
TOO HIGH