Central air conditioning VRV fault code (QQ 162245 1482)
Indoor unit failure
A0 external protection device action
A 1 P board of indoor unit is defective.
A3 condensate water level is abnormal (float switch action)
Fault of thermistor in A5 heat exchanger
A6 Fan motor is locked, overloaded or overcurrent.
A7 Wind direction regulating motor failure
A9 electronic expansion valve failure
AF drainage water level exceeds the limit; The internal machine doesn't work, and the floating switch acts.
AJ capacity setting error
Abnormal thermistor of C4 heat exchanger (1 liquid pipe)
Abnormal thermistor of C5 heat exchanger (2 gas pipes)
Abnormal C9 inspiratory thermistor
Abnormal thermistor of CJ remote controller
Outdoor unit failure
E0 protection device action
E 1 P board of outdoor unit is defective.
E3 High Voltage Switch Action: Please check whether the external machine is dirty.
E4 low-voltage switch action: Is there oil around the machine?
Overload of E5 inverter compressor: the common problem of F deficiency in household machines.
E6 standard compressor overcurrent (fixed frequency)
E7 Fan Motor Overload or Overcurrent
E8 AC input overcurrent
E9 electronic expansion valve failure
Abnormal EA four-way valve
H3 High voltage switch is abnormal.
H4 Low voltage switch is abnormal.
H6 compressor position sensor is abnormal.
H7 Fan Motor Signal Abnormal
H9 Outdoor air thermistor is abnormal.
F3。 Eliminate abnormal pipeline temperature.
F6 refrigerant overfilling
J2 Standard Compressor Current Transformer Abnormal (Constant Frequency Compressor Undercurrent
JBOY3 troubleshooting tube thermistor short circuit or open circuit.
J5 suction tube thermistor fault
Fault of thermistor in J6 heat exchanger
Abnormal thermistor of J8 oil equalizing pipe or liquid pipe
J9 gas collector thermistor fault
JA high voltage sensor failure
JC low pressure sensor failure
Temperature rise of L3 electric box
The heat sink temperature of L4 inverter is abnormally high.
L5 inverter compressor is abnormal.
L8 Inverter Current Abnormal
L9 Inverter startup error
Transmission failure between LC inverter and control PC board
Overpulse protection of P 1 frequency converter: unstable power supply voltage and lack of phase.
P4 Inverter Radiator Temperature Rise Sensor Fault
PJ outdoor unit capacity setting error.
U0 electronic expansion valve failure or insufficient refrigerant.
U 1 inverted, phase-missing
U2 power supply voltage is insufficient or power is cut off instantly.
U3 has not been commissioned.
U4 transmission failure between indoor unit and outdoor unit
Transmission failure between U5 remote controller and indoor unit.
Transmission failure between U7 outdoor units
U8 transmission failure between main remote controller and auxiliary remote controller.
U9 Transmission failure between indoor unit and outdoor unit of the same system
There are too many indoor machines in UA.
The address of UC centralized remote controller is duplicate.
Transmission between UE centralized remote controller and indoor unit failed.
UF refrigeration system is not set, and wiring and piping are incompatible.
Uh, system failure, the address of the refrigeration system has not been determined.
PC board fault of M0 centralized remote controller
Bad transmission between M8 centralized remote control devices.
Improper combination of MA centralized remote control device
The address of MC centralized remote controller is set incorrectly.
* The interference of signal or noise on the circuit board will cause false positive codes, sometimes leading to machine shutdown. So in general, please turn it off and reset it, and then repair it if the same code appears again.