12-31
CONTROL SYSTEM
Revision Y06-01
Service Manual - LEX
12.15 On Unit Indicators and Controls
STAND BY
INDICATOR
Lights up when the Air Conditioner is connected to power and
ready to receive the R/C commands
Blinks continuously in case of any thermistor failure.
OPERATION
INDICATOR
Lights up during operation.
Blinks for 300 ms, to announce that a R/C infrared signal has
been received and stored.
Blinks continuously during
•
OCT High Pressure Protection Mode
•
ICT High Pressure Protection Mode
•
Deicing in Heating Mode
•
Water Over Flow in ECC Model
TIMER INDICATOR
Lights up during Timer and Sleep operation.
FILTER INDICATOR
Lights up when Air Filter needs to be cleaned.
Blinks during Water Over Flow in MBX/P2000 models.
COOLING
INDICATOR
Lights up when system is switched to Cool Mode by using the
Mode Switch on the unit.
Show the thermistor status in Diagnostic Mode
HEATING
INDICATOR
Lights up when system is switched Heat Mode by using the
Mode Switch on the unit.
Show the thermistor status in Diagnostic Mode.
MODE BUTTON
(Cool, Heat, SB)
Use to cycle the operation mode of the A/C unit among COOL,
HEAT and SB modes, without using the R/C.
Every time this switch is pressed, the next operation mode is
selected, in this order :
SB
Cool Mode
Heat Mode
SB
...
Press this button continuously for 5 sec or more to start the
Diagnostic Mode.
RESET / FILTER
BUTTON
When the Filter LED is ON, press to turn off the Filter LED
after a clean filter has been reinstalled.
When the Filter LED is OFF, use this button to enable/disable
the buzzer announcer.
