Day and Night Air Conditioner Error Codes
Error Code
|
Problem
|
E1
|
High pressure protection
|
E2
|
Stop for anti?freeze protection of indoor ?unit
|
E4
|
Stop for discharge temp protection
|
E5
|
Stop for low voltage protection
|
E6
|
Stop for communication malfunction
|
H1
|
Automatic defrosting
|
H3
|
Stop for compressor overload protection
|
H4
|
Overload protection
|
H5
|
Stop for IPM module protection
|
H6
|
DC motor (indoor unit) does not operate
|
HC
|
PFC overcurrent malfunction
|
F1
|
Indoor ambient temperature sensor malfunction
|
F2
|
Indoor tube temperature sensor malfunction
|
F3
|
Outdoor ambient temperature sensor malfunction
|
F4
|
Outdoor tube temperature sensor malfunction
|
F5
|
Outdoor discharge temperature sensor malfunction
|
PH
|
DC voltage is too high
|
PL
|
Low voltage protection
|
L9
|
High power protection
|
LP
|
Unit match protection
|
U8
|
Indoor fan speed detection circuit malfunction
|
U9
|
System current too high
|
C5
|
Jumper connection malfunction protection
|
Overload
protection
If temperature sensed
by the overload sensor is over 239°F, the compressor will stop and the outdoor
fan will stop with a time lag of 30 seconds. If the temperature drops below
203°F, the overload protection will be reset.
If voltage on the DC
bus is below 150V or over 420V, the compressor will stop and the outdoor fan
will stop with a time lag of 30 seconds. When voltage on the DC bus returns to
its normal value and the compressor has stayed at a stop for at least 3 minutes,
the compressor will resume its operation. Faults of temperature sensors.
Day
and Night Air Conditioner Remote Control
Description of
Sensors: Indoor Ambient
Temperature
Faults: The sensor is
open or short−circuited for 30 consecutive seconds
Description of
Sensors: Indoor Tube
Temperature
Faults: The sensor is
open or short−circuited for 30 consecutive seconds
Description of
Sensors: Outdoor Ambient
Temperature
Faults: The sensor is
open or short−circuited for 30 consecutive seconds
Description of
Sensors: Outdoor Tube
Temperature
Faults: The sensor is
open or short−circuited for 30 consecutive seconds, and no detection is
performed within 10 minutes after defrost begins
Description of
Sensors: Exhaust
Faults: After the
compressor has run for 3 minutes, the sensor is open or short−circuited for 30
consecutive seconds
