A.O. Smith CAHP-MC-38 Installation, Operation And Maintenance Instructions page 37

Operation
Move to "
CLEAR FAULTS HISTORY
by pressing the Up/Down button,
then press SELECT button to start
this clearing process.
The "
CLEAR FAULTS HISTORY
interface will be
subsequently. Press YES button to
excute the clearing or press the
NO button to cancel the clearing.
The clearing command will be
sent to the MCB of the central
controller if the YES button is
pressed in the previous step and
the UIM will display "COMMAND
SENDING ... "
Press BACK button to return to
the previouse UIM interface.
Clear Faults History
"
U S E R P U M P O N T I M E
A U X H E A T A T H - A M B T
H X C L E A N R E S E T
C L E A R H E A T P U M P F A U L T S
C L E A R F A U L T S H I S T O R Y
S E L E C T
"
C L E A R F A U L T S H I S T O R Y
displayed
Y E S
C L E A R F A U L T S H I S T O R Y
C L E A R F A U L T S H I S T O R Y
U S E R P U M P O N T I M E
A U X H E A T A T H - A M B T
H X C L E A N R E S E T
C L E A R H E A T P U M P F A U L T S
C L E A R F A U L T S H I S T O R Y
S E L E C T
Display
U S E R S E T T I N G
2 0 m i n
O F F
T
B A C K H E L P
C L E A R A L L T H E
F A U L T S H I S T O R Y ？
N O
C L E A R A L L T H E
F A U L T S H I S T O R Y ？
C O M M A N D S E N D I N G ...
C L E A R A L L T H E
F A U L T S H I S T O R Y ？
S U C C E E D E D ！
B A C K
U S E R S E T T I N G
2 0 m i n
O F F
T
B A C K H E L P
Description
The clearing is successful if
the UIM display
"SUCCEEDED!".
If the UIM display
"FAILED!", it indicates the
clearing is unsuccessful,
please check the
communication
between the control board
and the display board of
the central controller.