9. Error Codes
In the event of operation outside of normal parameters, the control board identifies the issue with an error code and beeps. If more than one error occurs, the display cycles through the relevant error codes. For service corrections, see "III.B. Error Codes."
| Error Codes | |
A1 | Wash Tank Auto Fill Error | |
A2 | Internal Booster Tank Auto Fill Error | |
A3 | Wash Tank Water Level Error | |
o1 | Internal Booster Tank Water Level Error 1 | |
(Internal Booster Tank Water Level Float Switch Closed) | ||
| ||
o2 | Internal Booster Tank Water Level Error 2 | |
(Internal Booster Tank Water Level Float Switch Open) | ||
| ||
H1 | Wash Tank Thermistor Error (short) | |
H2 | Wash Tank Thermistor Error (open) | |
H3 | Internal Booster Tank Thermistor Error (short) | |
H4 | Internal Booster Tank Thermistor Error (open) | |
H5 | ROM/RAM Error | |
H6 | EEPROM Error | |
H7 | Phase Reversal Error |
10. Buzzer
•At the end of an auto fill cycle or other mode operation, the buzzer turns on for 0.1 second and off for 0.1 second 10 times.
•In case of an error, the buzzer turns on for 0.1 second and off for 0.9 second repeatedly until the error is reset. To turn off the beep, press the down button.
•When a button is pressed, the buzzer turns on for 0.1 second.
•To adjust the buzzer volume, use the volume control on the control board.
11. Special Modes
a) Internal Booster Tank Energy Saving Mode
The internal booster tank energy saving mode allows the internal booster tank temperature to drop during periods of inactivity. To activate or deactivate the internal booster tank energy saving mode, see " Internal Booster Tank Energy Saving Mode" (service menu item 14) in "II.D.7.b) Service Menu Chart."
After a period of inactivity from 0 to 99 minutes (service menu item 16), the temperature to maintain is dropped to the setpoint minus 0°F to 40°F (0°C to 22°C) (service menu item 15).
Adjust the water temperature drop so that the rinse (internal booster tank) water temperature rises enough to be at least 180°F (82°C) after the wash cycle.
The minimum rinse (internal booster tank) water temperature for the unit to switch out of the wash cycle and into the rinse cycle can be set from 180°F to 185°F (82°C to 85°C) (service menu item 17). If the minimum temperature has not been reached at the end of the preset wash cycle time (service menu item 01 or 02), the wash cycle is extended up to 60 seconds
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