Monday, June 25, 2012

CHIGO Fault Code

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FAULT CODE FOR SPLIT-WALL MOUNTED TYPE ROOM AIR CONDITIONER

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.






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Sunday, June 24, 2012

HAIER CHILLER FAULT CODE

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E01 flow switch fault
Troubleshooting: stop all module chillers
Faliure resume:this fault is unresume failure
Must cut off power,after eliminate failures,then restart

E05 triple-phase AC input lack phase protection
Troubleshooting: stop all compressors, water pump, fan motor(if master unit occurs this fault,all modules will stop,slave unit occurs this fault, only corresponding module unit will stop);
Troubleshooting resume:after AC input is normal,will auto resume;

E06 triple-phase AC input phase sequence protection
Troubleshooting: stop all compressors, water pump, fan motor(if master unit occurs this fault,all module units will stop,if slave unit occurs this fault,only corresponding module unit will stop );
Failure resume: after power off,adjust phase sequence,will resume.

E07 water return sensor fault
Troubleshooting: stop all compressors, water pump(if master unit occurs this fault,all module units will stop,if slave unit occurs this fault,unit won’t do stop protection);
Faliure resume: resume after change ambient sensor normally;

E08 water outlet temp. sensor fault
Troubleshooting: stop this unit’s all compressors;
Faliure resume: resume after change temp. sensor normally.

E09 outdoor ambient temp. sensor fault
Troubleshooting: stop this unit’s all compressors;
Faliure resume: resume after change temp. sensor normally;

E16 wired controller communication fault
Troubleshooting: system will do “OFF”manage
Faliure resume: auto resume after receiving wired controller communication signals.

E21 fan overload protection fault
Troubleshooting: stop this unit’s compressor
Faliure resume: unresumable

E22 A system high pressure protection
Troubleshooting: A system compressor stop;
Faliure resume: resume after signals shut;

E23 A system low pressure protection
Troubleshooting: A system compressor stops;
Failure resume: resume after signals shut;

E24 compressor 1 over current protection
Troubleshooting: A system compressor stops;
Faliure resume: auto resume;

E25 compressor 1 discharge temp. sensor open circuit or short circuit
Troubleshooting: A system compressor stops;
Failure resume: auto resume after changing sensor normally;

E26 A system coil(outlet) temp.sensor is open circuit or short circuit
Troubleshooting: stop A system compressor
Failure resume: auto resume after changing sensor.

E28 A system water exchange refigerant entrance port is open circuit or short circuit
Troubleshooting: stop A system compressor;
Failure resume: auto resume after changing sensor normally;

E29 A system suction temp. sensor is open circuit or short circuit
Troubleshooting: stop A system compressor
Failure resume: auto resume after changing sensor normally;

E30 A system coil(entrance)temp. sensor is open circuit or short circuit
Troubleshooting: A system compressor stops;
Failure resume: auto resume after changing sensor normally.

E31 compressor 1 discharge temp. sensor overhigh
Troubleshooting: A system compressor stops;
Failure resume: resume after changing temp. sensor or discharging temp. sensor < 90℃

E32 A system coil (exit) temp.sensor temp. overhigh
Trooubleshooting: A system compressor stops;
Failure resume: resume after A system coil(exit) senor temp.<55℃

E39 compressor 2 overcurrent protection
Troubleshooting: A system compressor stops;
Failure resume: auto resume;

E40 compressor 2 discharge temp. sensor is open circuit or short circuit
Troubleshooting: A system compressor stops;
Failure resume: auto resume after change sensor normally;

E46 compressor 2 discharge temp. is overhigh
Troubleshooting: A system compressor stops;
resume:resume after compressor 2 discharge temp.<90℃

E52 B system high pressure protection
Troubleshooting: B system compressor stops;
Failure resume: auto resume after signals shut

E53 B system low pressure protection
Troubleshooting: B system compressor stops;
Failure resume: auto resume after signals shut;

E54 compressor 3 over current protection
Troubleshooting: B system compressor stops;
resume: auto resume.

E55 compressor 3 discharge temp. sensor is open circuit or short circuit;
Troubleshooting: Bsystem compressor stops;
Failure resume: auto resume;

E56 B system coil(exit) temp. sensor is short circuit or short circuit
Troubleshooting: B system compressor stops;
Failure resume: auto resume after changing sensor normally.

E57 B system water exchange refirgerant entrance temp.sensor is open circuit or short circuit
Troubleshooting: B system compressor stops;
Failure resume: auto resume after changing sensor normally;

E58 B system water exchange refrigerant exit temp. sensor is open circuit or short circuit
Troubleshooting: B system compressor stops;
Failure resume: auto resume after changing sensor normally.

E59 B system suction temp. sensor is open circuit or short circuit
Troubleshooting: B system compressor stops;
Failure resume: auto resume after changing sensor normally

E60 B system coil(entrance) temp. sensor is open circuit or short circuit
Troubleshooting: B system compressor stops;
Failure resume: auto resume after changing sensor normally;

E61 compressor 3 discharging temp. sensor overhigh
Troubleshooting: B system compressor stops;
Failure resume: resume after changing temp. sensor or discharging temp. overhigh;

E62 B system coil(exit) temp. sensor overhigh
Troubleshooting: B system compressor stops;
Failure resume: resume after B system coil(exit) sensor temp<55℃

E69 compressor 4 overcurrent protection
Troubleshooting: B system compressor stops;
Failure resume: auto resume;

E70 compressor 4 discharging temp. sensor is open circuit or short circuit
Troubleshooting: B system compressor stops;
Failure resume: auto resume after changing sensor normally;

E76 compressor 4 discharging temp. sensor is overhigh
Troubleshooting: B system compressor stops;
Failure resume: resume after changing temp. sensor or discharging temp. <90℃
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Saturday, June 23, 2012

GREE HEAT PUMP WATER HEATER (NORTHERN EUROPE) ERROR CODE

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Code Indication = E1
Error Name = Comp High-pressure protection
Cause of Error Code = Comp High-pressure switch is broken or the wiring is loose.
The water in the tank is not enough.
The installation of tank temp sensor is not correct.
The gas valve and liquid valve are not fully open.
The thermal expansion valve can not work normally
Control Description = Press ON/OFF key to clear

Code Indication = E3
Error Name = Comp Low- pressure protection
Cause of Error Code = Comp Low-pressure switch is broken or the wiring is loose.
The system has leaked.
The fans stop running or reverse.
Control Description = Press ON/OFF key to clear

Code Indication = E4
Error Name = Comp Discharge temp protection
Cause of Error Code = The resistance of temperature sensor is not correct.
The thermal expansion valve is blocked.
The system has leaked.
Mainboard of outdoor unit is damaged
Control Description = Press ON/OFF key to clear

Code Indication = E5
Error Name = Comp overload protection
Cause of Error Code = AC contactor is damaged.
The compressor wiring is not correct.
The voltage is not normal.
Overcurrent test board is damaged.
The refrigerant of the system is excessive
Control Description = Press ON/OFF key to clear

Code Indication = E8
Error Name = Fan 1 overload protection
Cause of Error Code = Mainboard of outdoor unit is damaged.
The wire connecting the wiring terminals of the mainboard breaks.
Control Description = Press ON/OFF key to clear

Code Indication = b8
Error Name = Fan 2 overload protection
Cause of Error Code = Mainboard of outdoor unit is damaged.
The wire connecting the wiring terminals of the mainboard breaks.
Control Description = Press ON/OFF key to clear

Code Indication = F3
Error Name = Defrost temp sensor failure
Cause of Error Code = The plug on temperature sensor is not correctly connected to the socket on mainboard.
The resistance of temperature sensor is not correct.
Control Description = Auto resume

Code Indication = F5
Error Name = Discharge temp sensor error
Cause of Error Code = The plug on temperature sensor is not correctly connected to the socket on mainboard.
The resistance of temperature sensor is not correct.
Control Description = Auto resume

Code Indication = F7
Error Name = Outdoor ambient temp sensor failure
Cause of Error Code = The plug on temperature sensor is not correctly connected to the socket on mainboard.
The resistance of temperature sensor is not correct.
Control Description = Auto resume

Code Indication = EC
Error Name = Communication malfunction
Cause of Error Code = The communication line of the unit is not connected.
The communication line is not through.
The communication line of the unit is not connected correctly.
The two ends of communication line are not mounted with magnetic ring.
The outdoor unit is not electrically powered.
Control Description = Auto resume

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