Carrier 42XQ_42XQA User Manual
Page 7
6
DISPLAYS OF THE INDOOR UNIT,
LED INDICATORS AND CONTROLS
T
: EMERGENCY and RESET button
S
: Receiver of remote control signal
P
: Green LED
R
: Yellow LED
Q
: Red LED
Indoor Unit LEDs
Information about the operating mode of the
indoor unit is given by the 3 LEDs
(light-emitting diodes) on the unit.
THE GREEN LED (P)
indicates the
followings:
•
Error diagnosis.
•
During normal operation, the LED is
illuminated.
NOTE
• When the unit is disconnected or in
Standby mode (waiting), the LED
remains switched off. If a breakdown
occurs, the LED flashes at 5-second
intervals. The error code is shown by
the number of times the LED flashes.
A pause of 5 seconds occurs between
the luminous signal cycles.
ERROR CODE
DESCRIPTION
3
Ambient temperature sensor error
4
Indoor unit coil sensor error
7
Outdoor unit error
10
EEPROM malfunction
11
Corrupted serial number
12
Incomplete address/zone information
13
Gas flow distribution error