Erori aer conditionat

In lista de mai jos gasiti erori intalnite la anumite tipuri de aparate de aer conditionat . 

Erorile sunt avertizari, cand sistemul dvs. de climatizare nu mai functioneaza ,  acesta afiseaza un cod eroare

Erorile generale :

-          Aparatul nu raceste

Cauza ar putea fi lipsa agentului refrigerant sau o piesa arsa care nu permite pornirea compresorului

-          Aparatul de aer conditionat nu incalzeste

In general aparatele de aer conditionat pornesc , pe modul “ cald” , in 5 – 10 minute de la pornire

-          Curge apa din unitatea interna

Cauza poate fi o lipsa a agentului refrigerant sau traseul furtunului de condens , fiind in contrapanta fata de aparat sau furtunul spart 

-          Aparatul nu porneste 

      Întrerupere curent electric / Ștecher scos din priză.

Motorul ventilatorului unității interioare / exterioare deteriorat.

Întrerupător termomagnetic al compresorului defect.

Dispozitiv de protecție sau siguranțe defecte.

Conexiuni slăbite sau ștecher/ mufă deconectat(a).

Uneori nu mai funcționează ca urmare a activării unei funcții interne de protecție a aparatului.

Tensiune mai mare sau mai mică decât intervalul de tensiune

Funcție TIMER-ON este activa.

Placa electronica de control deteriorată

-  Miros neobisnuit , urat 

Aparatul necesita o curatare , igienizare completeta

-  Flux de aer insuficient 

Setarea necorespunzătoare a temperaturii

Fantele de admisie si de evacuare a aerului sunt obstrucționate.

Filtru de aer murdar.

Viteza de ventilație este la minim.

Alte surse de căldură în cameră.

Nu mai este agent frigorific in instalație

Erori aer conditionat ALIZEE  

Erori aer conditionat AUX

E1 Senzorul de temperatură din plastic este anormal. Nivelul de prioritate al afișajului: 2

E2 Senzorul de temperatură de cupru este anormal (în aer liber). Nivelul de prioritate al afișajului: 4

E3 Senzorul de temperatură de cupru este anormal (în interior). Nivelul de prioritate al afișajului: 3

E5 Anormalitate a unității exterioare

E6 Protecție la supracurent

E7 Eroare de feedback extern

E8 Protecție la supraîncălzire

E9 Defecțiune a pompei de apă

L1 Defecțiunea senzorului conductei spiralate

L2 Defecțiunea senzorului de temperatură a camerei

L6 Fără feedback al motorului ventilatorului intern

Erori aer conditionat Daikin

00 Normal

Eroare combinație unități interioare-exterioare UA

U0 Lipsa de agent frigorific

U2 Tensiune de cădere sau supratensiune din circuitul principal

U4 Eșecul de transmisie (între unitatea interioară și unitatea exterioară)

U7 EROARE DE COMUNICAŢIE (PLACĂ CONTROL EXTERIOR ŞI PLACĂ IPM)

UA EROARE DE INSTALARE

UF NEPOTRIVIRE DE INSTALARE CONDUCTE ŞI CABLURI/CABLAJ INCORECT/GAZ INSUFICIENT

UH ANTIGEL (ALTE CAMERE)

A1 Defect Pcb de interior

A3 Anomalie pompa de condens

A5 Control de înaltă presiune sau protector împotriva înghețului

A6 Eroare motor ventilator interior

AH Anomalie filtru de aer electric

C4 Senzor (1) de temperatură defect al schimbătorului de căldură

C5 Senzor (2) de temperatură defect al schimbătorului de căldură

C7 EROARE ÎNTRERUPĂTOR PROXIMITATE FANTĂ

C9 Senzor de temperatură al aerului de aspirare defect

EA Eroare de comutare răcire-încălzire

E1 Defecțiune placa de circuit

E3 PROTECŢIE PRESIUNE RIDICATĂ

E4 PROTECŢIE PRESIUNE SCĂZUTĂ

E5 BLOCARE MOTOR COMPRESOR/SUPRASARCINĂ COMPRESOR

E6 Pornire defectă a compresorului

E7 Defecțiune motor ventilator DC

E8 SUPRACURENT ALIMENTARE CU C.A.

E9 EROARE VENTIL ELECTRONIC DE EXPANSIUNE

EA EROARE ROBINET CU 4 CĂI

F3 Controlul conductei de evacuare la temperatură ridicată

F6 Control de înaltă presiune (în răcire)

H0 EROARE SISTEM DE SENZORI COMPRESOR

H3 EROARE COMUTATOR DE PRESIUNE RIDICATĂ

H6 EROARE DE DETECTARE RĂSPUNS COMPRESOR

H7 SUPRASARCINĂ MOTOR VENTILATOR/SUPRACURENT/ANOMALIE SENZOR

H8 Defecțiune senzor curent CA

H9 Senzor de temperatură a aerului de aspirare defect/TERMISTOR AER EXTERIOR SCURTCIRCUITAT/DESCHIS

J1 EROARE SENZOR DE PRESIUNE

J3 Senzor de temperatură a conductei de refulare defect

J5 SENZOR CONDUCTĂ DE ASPIRAŢIE SCURTCIRCUITAT/DESCHIS

J6 Senzor de temperatură defect al schimbătorului de căldură

J7 SENZOR SCHIMBĂTOR DE CĂLDURĂ SUBRĂCIRE SCURTCIRCUITAT/DESCHIS

J8 SENZOR CONDUCTĂ DE LICHID SCURTCIRCUITAT/DESCHIS

J9 SENZOR CONDUCTĂ DE GAZ SCURTCIRCUITAT/DESCHI

L3 SUPRAÎNCĂLZIRE CUTIE DE CONTROL EXTERIOR

L4 Temperatură ridicată la radiatorul circuitului invertorului

L5 Supracurent de ieșire

L8 SUPRACURENT COMPRESOR CU INVERTOR

L9 PREVENIRE SUPRACURENT COMPRESOR

LC EROARE DE COMUNICAŢIE (PLACĂ CONTROL EXTERIOR ŞI PLACĂ INVERTOR

P1 FAZĂ DESCHISĂ SAU DEZECHILIBRU ÎNTRE TENSIUNI

PJ EROARE SETARE CAPACITATE

P4 Senzor de temperatură radiator al circuitului invertorului defect

 

Erori aer conditionat GREE

E1	Sistem frigorific de protecție la înaltă presiune
E2	Protecție împotriva înghețului
E4	Protecție la temperaturi ridicate de evacuare a compresorului
E5	Protecție la supracurent AC
E6	Eroare de comunicare între unitatea interioară și unitatea exterioară
E8	Protecție împotriva temperaturii ridicate
H6	Fără feedback la motorul ventilatorului interior
C5	Protectie defectuoasa a capacului jumper
F0	Protecție împotriva scurgerilor de agent frigorific
F1	Senzor de mediu interior deschis sau scurtcircuit
F2	Senzor tub interior deschis sau scurtcircuit
F3	Senzor de mediu exterior deschis sau scurtcircuit
F4	Senzor tub exterior deschis sau scurtcircuit
F5	Senzor de evacuare întrerupt sau scurtcircuit
F6	Peste limita de sarcină/frecvență de cădere
F8	Peste curent limită / frecvență de scădere
F9	Limită mare de temperatură de evacuare/frecvență de scădere
PH	Protecție la supratensiune pentru PN
U5	Curentul AC detectează defecțiunea circuitului
U4	Protectie inversa compresorului
P5	Protecție la suprafața compresorului
b5	Funcționare defectuoasă a senzorului tubului de admisie
L3	Funcționare defectuoasă a motorului ventilatorului DC exterior
b7	Defecțiune a senzorului tubului de evacuare
FC	Defecțiune a ușii
FE	Defecțiune a senzorului de suprasarcină a compresorului
H1	Dezghețare
H2	Protecție antistatică împotriva prafului
H3	Protecție la suprasarcină a compresorului
H4	Protecție anormală a sistemului
H5	Protecție IPM
HC	Protecție PFC
H7	Protecție în trepte de pierdere a compresorului
H0	Încălzire anti-frecvență de scădere a temperaturii ridicate
Lc	Eșec la pornire
U2	Protecția compresorului împotriva pierderii fazei
U1	Defecțiunea circuitului de detectare a curentului de fază a compresorului
EL	Protecție împotriva demagnetizării compresorului
EE	Defecțiune la încărcarea EEPROM
P6	Eroare de comunicare între placa principală și placa driver
PU	Defecțiune a încărcării condensatorului
P7	Defecțiune a circuitului senzorului IPM
P8	Protecție IPM la temperaturi înalte
U3	Protecție împotriva căderii de tensiune PN
PL	Protecție la tensiune PN scăzută
Pc	Defecțiune a circuitului de detectare a curentului sau defecțiune a senzorului de curent
Ld	Protecția la pierderea de fază a compresorului
LE	Protecție rotativă blocată cu compresor
UE	IPM peste limita de temperatură / frecvența de scădere
U7	Inversarea supapei cu 4 căi anormală
U8	Deconectarea senzorului de temperatură de evacuare
U9	Eroare de detectare a tensiunii zero de curent alternativ
FA	Frecvența de scădere a temperaturii peste tub
FH	Limită anti-îngheț / frecvență de cădere
oE	Protecția la temperatură a modulului PFC/defecțiunea senzorului modulului PFC

 

 

Erori aer conditionat Midea

E0	Eroare de parametru EEPROM
E1	Protecția comunicării unităților interioare/exterioare
E2	Eroare de semnal de trecere la zero
E3	Viteza ventilatorului scapă de sub control
E5	Circuit deschis sau scurtcircuit al senzorului de temperatură exterioară
E6	Circuit deschis sau scurtcircuit al senzorului de temperatură a camerei sau a vaporizatorului
P0	Protecție IGBT împotriva curentului excesiv
P1	Protecție la supratensiune sau prea sub tensiune
P2	Protecție la temperatură a superioară a compresorului.
P4	Eroare de antrenare a compresorului invertor

 

LED
code = DF
explain = display at on state
LAMP DISPLAY
code = flicker 1/1 SEC
explain =
FAILURE = defrost indication
The reason of fault and solution = Normal, the defrost state is removed, it will return to normal condition automatically

LED
code = DF
explain = display at off state
LAMP DISPLAY
code = flicker 1/3 SEC
explain =
FAILURE = anti cold wind
The reason of fault and solution = 1.Normal (during heating mode )
2.It will be removed when the coil pipe temperature sensor reaches certain temperature.

LED
code = E2
explain = display at off state
LAMP DISPLAY
code = flicker 1/1 SEC
explain = display at on/off state
FAILURE = room temp. sensor fault
The reason of fault and solution = 1.Check whether the resistance of the sensor is normal (the resistance is 5KΩ in the normal temperature 25°), when it is abnormal the sensor should be replaced.
2.Check whether there is short circuit or open circuit in the wire of the sensor, and whether the plug is connected well, whether there is welding off or rosin joint on the electric control board, if there is any, it should be repaired.
3.When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the electric control board should be replaced.



LED
code = E3
explain = display at off state
LAMP DISPLAY
code = flicker 3/5 SEC
explain = display at on/off state
FAILURE = coil temp. sensor fault
The reason of fault and solution = 1 .Check whether the resistance of the sensor is normal (the resistance is 5KΩ in the normal temperature 25°), when it is abnormal the sensor should be replaced.
2 .Check whether there is short circuit or open circuit in the wire of the sensor, and whether the plug is connected well,
whether there is welding off or rosin joint on the electric control board, if there is any, it should be repaired.
3.When the 1 and 2 are both normal, then the components or integrated circuit is damaged, the electric control board should be replaced.

LED
code = E4
explain = display at off state
LAMP DISPLAY
code = flicker 4/6 SEC
explain = display at off state
FAILURE = outdoor unit abnormal
The reason of fault and solution = 1.Check whether the winding resistance and operation current of the compressor are normal.
2.Check whether the high and low pressure is normal when the unit is running.
3 .Check (whether the coil pipe sensor is normal) whether the contact of the
inserter on the circuit board is well, the coil pipe temperature sensor is fixed, the evaporation of the indoor unit is well, the key is to check the evaporator temperature detected by the coil pipe temperature sensor has reached the cooling or heating temperature.
4 .Check whether the surface of the condenser is too dirty, it should be cleaned when it is too dirty.
5 .Check whether the capacitance of the outdoor motor and the fan is damaged, it should be replaced when it is damaged.
6 .If the above items are normal, the electric control board should be replaced.

LED
code = E5
explain = PG motor display at off state
LAMP DISPLAY
code = flicker 5/7 SEC
explain = display at off state
FAILURE = no feedback signal of indoor fan
The reason of fault and solution = 1.Check whether two sets of plugs on the outlet end of the motor have loosed from the socket of the electric control board, insert it firmly when loosing.
2.Check whether the indoor motor has damaged, the motor should be replaced when it is damaged
3.Check whether the controllable silicon and other components on the electric control board have damaged, replace the controllable silicon or electric control board when they are damaged.

LED
code = E6
explain = PG motor display at off state
LAMP DISPLAY
code = flicker 6/8 SEC
explain = display at off state
FAILURE = no over zero signal
The reason of fault and solution = 1. Firstly check whether the indoor fan is normal.
2. Check whether the signal outputting from the integrated chip of the electric control board is normal, the electric control board should be replaced when the signal is abnormal.

LED
code = E7
explain = display at off state
LAMP DISPLAY
code = flicker 7/9 SEC
explain = display at off state
FAILURE = outdoor feedback fault
The reason of fault and solution = 1.Check whether the winding resistance and operation current of the compressor are normal
2.Check whether the high and low pressure is normal when the unit is running.
3.Check whether the indoor and outdoor wiring is right; when it is wrong, connect them again according to the circuit diagram
4.Check whether the contact of the inserter on the circuit board and the connection are well, otherwise repair.
5.Check whether the signal feedback wire is disconnected, replace or connect the feedback signal wire.
6.Check whether the supply power is phase-lacking or phase opposition.
7.Check whether the AC electromagnetic contactor is well.

LED
code = E8
explain = display at off state
LAMP DISPLAY
code = flicker 8/10 SEC
explain = display at off state
FAILURE = frost protection/over heat protection
The reason of fault and solution = 1 .Check whether the filter of the indoor unit is dirty or blocked, and clean if it is dirty.
2.Check whether the indoor fan is running normally, and replace the motor if it is abnormal.
3.Check whether indoor pipe temperature sensor is normal, and replace the sensor if it is abnormal.
4 .Check whether the system pressure is normal, if abnormal, should check whether there is leakage, and fill the refrigerant again.

CHIGO DC Inverter Split Air-Condition Unit Fault Code

The indoor unit faulty display

Faulty contents = Faulty contents
Trouble Display = The running lamp lightens all the time,the turbo lamp lightens 2 times ,and then extinguish 2 seconds.

Faulty contents = Indoor fan fault
Trouble Display = The running lamp lightens all the time, the turbo lamp lightens 5 times, and then extinguish 2 seconds.

Faulty contents = Indoor temp. sensor fault
Trouble Display = The running lamp lightens all the time,the turbo lamp lightens 3 times, and then extinguish 2 seconds.

Faulty contents = Indoor coil outlet temp. sensor fault
Trouble Display = The running lamp lightens all the time, the turbo lamp lightens 4 times, and then extinguish 2 seconds.

Faulty contents = Indoor coil inlet temp. sensor fault
Trouble Display = The running lamp lightens all the time, the turbo lamp lightens 4 times, and then extinguish 2 seconds.

Faulty contents = Indoor coil middle temp. sensor fault
Trouble Display = The running lamp lightens all the time, the turbo lamp lightens 4 times, and then extinguish 2 seconds.

Faulty contents = Mode conflict
Trouble Display = The running lamp lightens 1 time, and then extinguish 1 second.

Faulty contents = Defrosting or anti cold air
Trouble Display = The timing lamp lightens 1 time ,and then extinguish 1 second.

The outdoor unit faulty display

Faulty contents = the outdoor unit transducer module protection faulty
Trouble Display = The timing lamp lightens all the time, the turbo lamp lightens 2 times, and then extinguish 2 seconds.

Faulty contents = over current of outdoor unit
Trouble Display = The timing lamp lightens all the time, the turbo lamp lightens 3 times, and then extinguish 2 seconds.

Faulty contents = discharge temp. of compressor too high, outside ambient temp. too high, switch temp. of compressor crust cut off, temp. of module too high
Trouble Display = The timing lamp lightens all the time, the turbo lamp lightens 4 times, and then extinguish 2 seconds.

Faulty contents = The outdoor unit DC busbar voltage is abnormal
Trouble Display = The timing lamp lightens all the time, the turbo lamp lightens 7 times, and then extinguish 2 seconds.

Faulty contents = lack refrigerant or reverse valve fault
Trouble Display = The timing lamp lightens all the time, the turbo lamp lightens 8 times, and then extinguish 2 seconds.

Faulty contents = outdoor sensor fault
Trouble Display = The running lamp lightens all the time, the turbo lamp lightens 7 times, and then extinguish 2 seconds.

Faulty contents = outdoor unit drive fault, start compressor failure
Trouble Display = The running lamp lightens all the time, the turbo lamp lightens 6 times, and then extinguish 2 seconds.

 
Faulty contents = Communication fault
Trouble Display = The timing lamp lightens all the time, the sleeping lamp lightens 2 times, and then extinguish 2 seconds

Faulty contents = Indoor fan fault
Trouble Display = The timing lamp lightens all the time, the sleeping lamp lightens 5 times , and then extinguish 2 seconds

Faulty contents = Indoor temp. sensor fault
Trouble Display = The timing lamp lightens all the time, the sleeping lamp lightens 3 times , and then extinguish 2 seconds

Faulty contents = Indoor coil outlet temp. sensor fault
Trouble Display = The timing lamp lightens all the time, the sleeping lamp lightens 4 times , and then extinguish 2 seconds

Faulty contents = Indoor coil inlet temp. sensor fault
Trouble Display = The timing lamp lightens all the time, the sleeping lamp lightens 4 times ,and then extinguish 2 seconds

Faulty contents = Indoor coil middle temp. sensor fault
Trouble Display = The timing lamp lightens all the time, the sleeping lamp lightens 4 times , and then extinguish 2 seconds

Faulty contents = Mode conflict
Trouble Display = The timing lamp lightens 1 time, and then extinguish 1 second.

Faulty contents = Defrosting or anti cold air
Trouble Display = The running lamp lightens 1 time, and then extinguish 1 second

Faulty contents = the outdoor unit transducer module protection faulty
Trouble Display = The running lamp lightens all the time, the sleeping lamp lightens 2 times, and then extinguish 2 seconds

Faulty contents = over current of outdoor unit
Trouble Display = The running lamp lightens all the time, the sleeping lamp lightens 3 times , and then extinguish 2 seconds

Faulty contents = discharge temp. of compressor too high, outside ambient temp. too high, switch temp. of compressor crust cut off, temp. of module too high
Trouble Display = The running lamp lightens all the time, the sleeping lamp lightens 4 times, and then extinguish 2 seconds

Faulty contents = The outdoor unit DC busbar voltage is abnormal
Trouble Display = The running lamp lightens all the time, the sleeping lamp lightens 7 times, and then extinguish 2 seconds

Faulty contents = lack refrigerant or reverse valve fault
Trouble Display = The running lamp lightens all the time, the sleeping lamp lightens 8 times, and then extinguish 2 seconds

Faulty contents = outdoor sensor fault
Trouble Display = The timing lamp lightens all the time, the sleeping lamp lightens 7 times, and then extinguish 2 seconds

Faulty contents = outdoor unit drive fault, start compressor failure
Trouble Display = The timing lamp lightens all the time, the sleeping lamp lightens 6 times, and then extinguish 2 seconds

The malfunction oindoor and outdoor unit
The common malfunction code analysis and solutions

The fault code = F1
The fault content = The communication fault
The reason of fault and its solutions = 1.The communication wire is broken off. Please check whether the wire is disentwined ;
2.Please check whether the electrical control board is damaged. It should be replaced when it is damaged;
3.Please check whether the power ground wire is reliable;
4.Please check whether the unit is abnormal caused by the external interference. If it is, then find the interfering sources, and remove them.

The fault code = F2
The fault content = The indoor temperature sensor fault
The reason of fault and its solutions = 1.Check whether the resistance of sensor is normal, otherwise replace it;
2.Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board, repair it if there is any above;
3.When the 1 and 2 are both normal, then the component or integrated circuit is damaged, the electric control board should be replaced.

The fault code = F3
The fault content = The indoor coil temperature sensor fault
The reason of fault and its solutions = 1. Check whether the resistance of sensor is normal, otherwise replace it;
2. Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board ,repair it if there is any above;
3. When the 1 and 2 are both normal, then the component or integrated circuit is damaged, the electric control board should be replaced.

The fault code = F4
The fault content = Indoor PG motor fault (tap motor hasn’t so breakdown )
The reason of fault and its solutions = 1.Check whether the contact of the plug of the motor wire and socket is well. Please make sure it is well contacted;
2.Check whether the indoor motor has damaged, the motor should be replaced when it is damaged;
3 .Check whether the controllable silicon and other components on the electric control board have damaged,
replace the controllable silicon or electric control board when they are damaged;
4.Check whether the indoor fan is unobstructed when running, please fix the indoor fan again when it is obstructed.

The fault code = F5
The fault content = IPM protection
The reason of fault and its solutions = 1.Check whether the supply voltage is out of ranging from 150 to 270V(overvoltage and undervoltage protection); Measuring the actual current, if the current is greater than
the rated current of 2A,it is over-temperature protection; If the above are normal, that is IPM module internal circuit fault protection, so please replace the IPM module.

The fault code = F6
The fault content = The outdoor sensor fault
The reason of fault and its solutions = 1. Check whether the resistance of sensor is normal, otherwise replace it;
2. Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board, repair it if there is any above;
3. When the 1 and 2 are both normal ,then the component or integrated circuit is damaged, the electric control board should be replaced.

The fault code = F7
The fault content = The outdoor coil temperature sensor fault (Including the mid-point of tube. inspiratory gas)
The reason of fault and its solutions = 1. Check whether the resistance of sensor is normal, otherwise replace it;
2.Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board, repair it if there is any above;
3.When the 1 and 2 are both normal, then the component or integrated circuit is damaged, the electric control board should be replaced

The fault code = F9
The fault content = Exhaust gas sensor failure
The reason of fault and its solutions = 1. Check whether the resistance of sensor is normal, otherwise replace it;
2. Check whether the sensor wire is short circuit or open circuit, and whether the plug is well contacted, whether there is welding off or rosin joint on the electric control board, repair it if there is any above;
3. When the 1 and 2 are both normal, then the component or integrated circuit is damaged, the electric control board should be replaced.

The fault code = FA
The fault content = The communication fault between the wire controller and the indoor PCB
The reason of fault and its solutions = 1. check whether the wire controller’s connecting wire is short circuit or loose, please make it connect well;
2. Check the connecting line.wire controller.PCB whether they are loose or have a bad contact. Please make them have a good contact.

The fault code = FC
The fault content = outdoor unit driving fault, starting compressor failure
The reason of fault and its solutions = 1. Turn on the power again, and then check whether the operation of the compressor is normal;
2. Check whether the connection of the compressor is correct or reliable, otherwise repair it;
3. Check whether the components on the electric control board have been damaged, if they are damaged, the components or the electric control board should be replaced.;
4. Check whether the connecting wires are disentwined between the Intelligent Power Module board and the main board, otherwise make the wires connect firmly .

The fault code = FF
The fault content = The outdoor DC motor fault
The reason of fault and its solutions = 1. Check the resistance value of the DC motor port. If it is short circuit, please change the DC motor;
2. Check the voltage value of the DC motor port VCC(15Vdc), Vdm(340Vdc),please change the PCB board if the voltage values are abnormal;
3. if all the voltage values of the DC motor port are normal，the Vsp voltage (0~5v) is also ok ,it shows that the inner PCB board of the DC motor is damaged, then change the DC motor.

The fault code = FH
The fault content = The indoor unit EEPROM error
The reason of fault and its solutions = 1. Check whether there are false weld and bad contact etc between the EEPROM chip block and the electronic control board ;
2. Check whether the EEPROM chip pin is broken foot and the direction of installation is in line with the
EEPROM block;
3. When the procedure of EEPROM chip and itself have fault it will appear the code FH. That is the need to replace the EEPROM chip.

The fault code = dF
The fault content = The indoor unit EEPROM error
The reason of fault and its solutions = 1. Check whether there are false weld and bad contact etc
between the EEPROM chip block and the electronic control board ;
2. Check whether the EEPROM chip pin is broken foot and the direction of installation is in line with the EEPROM block;
3. When the procedure of EEPROM chip and itself have fault it will appear the code FH. That is the need to replace the EEPROM chip.

The fault code = dI
The fault content = Mode conflict
The reason of fault and its solutions = When the running mode for No.1 indoor unit is different from No.2 indoor unit, the dF is displayed.

The fault code = P1
The fault content = Indoor coil temperature
over-temperature protection for heating (thermal overload), outdoor coil temperature overheating protection for cooling (cooling overload)
The reason of fault and its solutions = 1. Check whether the ambient temperature is over the range of air-conditioning running temperature ;
2. Check whether the indoor coil temperature is higher than or equal to 63 degrees when heating and check whether the outdoor coil temperature is higher than or equal to 65 degrees when cooling, it will appear protection if the value is over the above;
3. Check whether the parameters of indoor and outdoor coil temperature sensors are normal, if abnormal, please replace the sensors;
4. If the above are normal, check whether the main control board output parameters are normal, if abnormal, please replace the main control board.

The fault code = P2
The fault content = The outdoor unit inverter module protection fault
The reason of fault and its solutions = 1. Check whether the connection of the compressor is reliable, otherwise connect firmly again;
2. Check whether the fixation between the IPM module and the radiator is firm.;
3. Check whether the compressor is well, otherwise replace it;
4. Check whether the IPM module is abnormal, otherwise replace it.

The fault code = P3
The fault content = Over current of outdoor unit
The reason of fault and its solutions = 1. Check whether the ambient temperature exceeds the operation range for the air conditioner;
2. Check whether the current detection circuit is abnormal, the electric control should be replaced when it is abnormal.

The fault code = P4
The fault content = discharge temperature of compressor is too high, the outside ambient temperature over-temperature, switch off the compressor shell temperature, module temperature over-temperature
The reason of fault and its solutions = 1. Check whether the pressure is normal when the unit is running, if it is abnormal, you should detect the leakage and then welding and adding refrigerant;
2. Check whether the ambient temperature is too high or too low, when the temperature is more than -20 degrees and less 55 degrees, it can disappear automatically;
3. Check whether temperature switch of compressor is damage, it should be replaced if it is damaged.

The fault code = P7
The fault content = The outdoor unit DC generatrix voltage is abnormal
The reason of fault and its solutions = 1. Check whether the supply voltage is out of ranging from 150 to 270V;
2. Check the voltage detection circuit of the IPM base board is abnormal, if it is abnormal, the IPM base board or the electric control board should be replaced.

The fault code = P8
The fault content = lack refrigerant or reverse valve fault
The reason of fault and its solutions = 1. Check whether the high and low pressure valves have been opened, otherwise open the valves;
2. Check whether the indoor coil pipe temperature sensor is normal, if it is abnormal, the sensor should be replaced;
3. Check whether the indoor coil temperature sensor hung in the air, please plug it in a correct position if the indoor coil temperature sensor hung in the air;
4. Check the system pressure is abnormal, if it is abnormal, you should detect leakage and the welding and adding the refrigerant.;
5. Please change the outdoor PCB board , if all above are normal.

The fault code = PA
The fault content = protection when indoor pipe temperature is too low (Anti-icing)
The reason of fault and its solutions = 1. Check whether the ambient temperature is over the range of air-conditioning running temperature;
2. Check the indoor coil temperature is less than or equal to -1 degrees, if more than this value it will be the protection of;
3. Check whether the indoor coil temperature sensor parameters are normal, if abnormal it is the replacement of the sensor;
4. If the above are normal, check whether the main control board output parameters are normal, if abnormal ,please replace the main control board.

The fault code = PC
The fault content = Outdoor ambient temperature over-temperature protection (including high and low)
The reason of fault and its solutions = 1. Check whether the outdoor ambient temperature is too high or too low, when the ambient temperature is lower than (T> -20, T <55), this fault automatically discharges;
2. Check whether the outdoor temperature sensor’s ring temperature parameters are normal, if abnormal ,please replace the sensor;
3. If the above are normal, check whether the main control board’s output parameters are normal, f abnormal ,please replace the main control board.

The fault code = PE
The fault content = EEPROM reading error (outdoor unit)
The reason of fault and its solutions = 1. Check whether there are false weld and bad contact etc between the EEPROM chip block and the electronic control board ;
2. Check whether the EEPROM chip pin is broken foot and the direction of installation is in line with the EEPROM block;
3. When the procedure of EEPROM chip and itself have fault it will appear the code PE. At this time there is the need toreplace the EEPROM chip.