32
LCD and
LED all lit
Current
humidity
Room
temperature
indicator
Tube
temperature
indicator
Current fan
rank
Determined
frequency
For current humidity
(all displays in decimal)
Mode displayed
Examples
(2) LED, LCD and fan tests
●Start: Press the MODE and HUMIDITY SELECTION buttons simultameously 4 times when the
power is off. Press the POWER button within 2 seconds.
●Mode select: Use the timer switch to change the diagnosis mode (0 - 5).
●Finish: Turn the power OFF. The solenoid valves operate for approximately 3 seconds.
(3) Operation/Error history mode
●Start: Press the MODE and HUMIDITY SELECTION buttons simultameously 5 times when the
power is off. Press the POWER button within 2 seconds.
●Mode select: Use the Timer button to select indicator mode (0-F).
●Finish: Turn the power OFF. The solenoid valves operate for approximately 3 seconds.
(4) Demo program
●Start: With the power OFF, hold down the MODE and SELECTION buttons, and press the power button.
The demo program starts in 3 seconds.
●Operations (all buttons are disabled):
1 Fan: Fixed at rank 3
2 Compressor/solenoid valve: Stopped
3 LCD/LED: Lights in random sequence
4 Swing louvre: Wide
●End: Remove power plug.
0: Latest error
7: Oldest error
Compressor
malfunction detected
Error history display
Example: Latest error display
Tube temperature
Thermistor short-circuit
detected
Watchdog error
Tube temperature
Thermistor short-circuit
detected
Frequency determination
error at power ON
Room temperature
Thermistor short-circuit
detected
Frequency error
when fan operated
Room temperature
Thermistor short-circuit
detected
Latest error Display mode
A6 error
A2 error
A3 error
P4 error
E8 error
E7 error
E1 error
E0 error
When “display mode” is 8 to F, the number of error
generations is displayed in hexadecimal.
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