A.O. Smith 300 Series Instruction Manual page 46

Description/Action
Press Heater Information from the Main Menu to enter this menu.
This menu contains non adjustable operational information.
Elapsed Time - Total accumulated time the control system
•
(water heater) has been energized.
Burner On Time - Total accumulated time the control system
•
has been in the heating operating state; burner run time.
Total Cycle Count - Total accumulated count of heating cycles.
•
CCB Version - Software version for central control board.
•
Config CRC - Verifies the configuration key matches the CCB
•
programming.
UIM Version - Software version for user interface module.
•
Use External Enable - Enables/Disables the external enable
•
circuit.
External Enable Status - Displays whether or not the external
•
enable circuit has been activated.
Ignition Trials - Displays the number of ignition trials allowed.
•
Note: Historical data is stored in the configuration key. If this
"key" is replaced during servicing the historical data will
be lost. The data stored in the new configuration key will
no longer reflect the entire history of the water heater.
The configuration key should never be replaced unless
directed by Technical Support.
The Elapsed Time, Burner On Time, and Cycle Count indicate
•
age, usage, and wear.
If the Cycle Count per day is high (divide cycle count by days
•
to determine cycles per day) or the cycle duration is short
(determine burner on time total minutes, divide burner on time
total minutes by cycle count) consider rasing the Differential
setting to avoid short cycling and excessive component wear.
See Operating Set Point and Differential Adjustment (page 43).
This historical data can also be used to assist facilities
•
managers in forecasting planned replacement of equipment
to help avoid lengthy and costly hot water supply interruptions.
Description/Action
Press Current Fault from the Main Menu to enter this menu. This
menu contains non adjustable operational information. Use the
Slidebar to navigate the menu.
This menu contains the current Fault or Alert error message. The
time the Fault or Alert message occurred appears directly below.
A brief description of what causes the particular Fault or Alert
condition appears below that. Pressing "ADVANCED" will give
more detailed service information and a list of possible causes
for the Fault or Alert condition. See Fault And Alert Conditions (page
61) for more detailed information and diagnostic procedures.
If there is no Fault or Alert condition active this menu will not
contain any information, "(none)" will be shown next to Current
Fault in the Main menu.
Heater Information
Elapsed Time 0days 0hrs 43mins >
Burner On Time 0days 0hrs 1mins
Use External Enable
External Enable Status
Ignition Trials
Total Cycles Counter
Ignition Failure Count
Flame Loss Count
CCB Version
Config CRC
UIM Version
Configuration Raw
Current Fault
Blocked Exhaust
0 days 0 hr 0 min ago
Error Code: A8-1201
Restriction in exhaust pipe.
Check exhaust pipe and
termination for blockage.
Press the Advanced button for
46
Display
Top of Menu
Heater Information
3 tries >
BACK
Bottom of Menu
Heater Information
0xD7A7 >
0x510C >
BACK
Display
BACK
No >
No >
2 >
HELP
1 >
0 >
3.17 >
2.58 >
HELP
ADVANCED