Troubleshoot the eight most common Daikin air conditioner issues

Over time any appliance that is being used regularly will eventually have small issues - regardless of how high of quality the construction or parts behind it are.

It can be a huge headache having an air conditioner that's not working correctly - especially on a hot summer's day.

Below are the eight most common issues that occur with Daikin units, as well as advice about what to do when these problems arise.

Guide to Fixing Problems with your Daikin Air-Con:

Daikin AC unit not turning on

In general, air conditioning systems use quite a lot of power to operate at their full potential. Because of this, one of the most common reasons a Daikin air conditioning unit won't turn on is a blown or tripped circuit breaker.

To check if this is the issue, have a look in your switchboard to see if any of the switches have tripped. If the circuit breaker is tripped, you can reset same but if it trips again, ensure that you call an air conditioning technician immediately and don't use your system until it's fixed.

If the system is not tripping the circuit breaker but still will not turn on or cool then you can try a 'hard' reset to see if this solves the problem with your air conditioner. You can do this by going to the outdoor unit and turning the isolator off and leaving it off for at least 30 minutes. You can then turn the isolator on and see if the air conditioner has reset itself and returned to normal operation. If this does not work you will need to consult a licenced air conditioning technician to carry out diagnosis and repair of your air conditioner.

Daikin AC not cooling

If you have found that your air conditioner isn't sending out cold air, you should first check check to ensure that you don't have dirty air filters. Air conditioner filters should be cleaned every 3-4 months or sooner in some instances. If they aren't, they will accumulate dust and debris. A clogged air filter can block air flow and prevent your air conditioner working.

Some Daikin systems have an 'auto filter cleaning setting'. However, remember that an AC unit may not turn on immediately after a filter cleaning operation.

Lastly, double-check the temperature and mode setting on your Daikin remote (controller) and ensure it's correct.

A regular air conditioning service will ensure that you shouldn't ever have a dirty or clogged air filter. A regular air conditioner service can also detect any issues and prevent them from becoming a major problem which cause breakdowns.

Daikin AC is leaking

A very small amount of condensation is often normal for your Daikin air conditioner. However, if it becomes more than a few droplets on the vents on a ducted air conditioner or coming from the indoor unit in the case of a split system, it's an indication of a problem. Turn the unit off and contact a professional to avoid further damage to the air conditioner and water damage to walls etc.

Daikin AC is flashing and error code

Daikin air conditioners are equipped with a green operation lamp (green light) and an orange operation lamp (orange light) to make users aware of certain issues.

When a green light is shown on a Daikin unit, there are a number of problems it can be connected to. To find out exactly what the issue is, remove the back cover of the remote and locate the cancel button. Hold the cancel button for 5-10 seconds until the temperature on the screen is replaced by two flashing zeros.

Keep pressing the cancel button until you hear a long beep. After this, the zeros on the screen will be replaced by numbers that indicate specific issues.

The air conditioner will beep once if the number showing on the remote is not the correct issue. If the Daikin beeps twice, one of the two numbers showing up on the remote is the correct issue. If the unit gives off a long continuous beep, both numbers on the remote indicate the correct issue, and this is your problem.

Once the correct numbers are found, please search the Daikin air conditioner fault code page found online to troubleshoot the issue.

Daikin Air Con Remote Isn't Working

When the Daikin air conditioner remote isn't working, you can try to reset the remote. This can be done by holding the on/off button on the remote controller for two seconds. Next, press the on/off switch once to stop the operation and a second time to restart the remote.

If your remote controller is not showing anything on the display or is faded, try to replace the batteries and then reset the remote controller as written about above.

If neither of these work, contact a professional for further help.

Daikin AC is too loud

If your Daikin air conditioner unit is making any sounds that are out of the ordinary you should turn off the air conditioner and get a service technician to attend.

Daikin AC smells bad

If your Daikin is emitting an unpleasant smell, ensure that the filter has been changed recently. There are various reasons why an AC might smell badly, ranging from a dead insect inside your unit to a mechanical issue. For more causes and fixes for a bad-smelling AC, you can check out our guide here.

Often when an air conditioner has a bad smell - a deep clean is needed - in addition to the standard service.

Daikin AC is not turning off

If a Daikin air conditioner isn't turning off, it could be linked to a dirty filter that doesn't let the room reach the desired temperature, a wrong setting or a power failure. You should first check that the dry cooling, dehumidifier, cooling and mould proof settings are all off.

These settings could cause the system to continuously run. There's a range of reasons that your system may not be turning off, and most are linked to it not reaching the right temperature. For more causes and fixes for a Daikin AC that won't turn off, you can check out our guide here.

Daikin Air conditioner Fault codes

Fault codes – A to C

Fault code	Fault explanation	Possible causes	Origin of fault
A0	External protection device activated	External protection device connected to the terminal strip T1-T2 of indoor unit is activated	Indoor unit
A1	Malfunction of indoor unit PCB	Defective indoor unit OCB. External factor (noise etc.)	Indoor unit
A3	Drain Level Control System Abnormality	Drain clogging, upward slope, etc. Defective drain pump Defective float switch or short circuit connector	Indoor unit
A4	Malfunction of freezing protection	Shortage of water volume Low water temperature setting Defective water temperature thermistor	Indoor unit
A5	High pressure control in heating, freeze-up protection control in cooling	Clogged air filter of indoor unit and short circuit Defect of indoor unit heat exchanger thermistor	Indoor Unit
A6	Malfunction of fan motor	Broken wires in, short circuit of, or disconnection of connectors from the fan motor harness Defective fan motor Defective indoor unit PCB	Indoor unit
A7	Malfunction of swing flap motor	Defective swing flap motor Defective indoor unit PCB Defective connection cable Defective airflow direction adjusting flap-cam	Indoor unit
A8	Malfunction of power supply or AC input overcurrent	Defective power supply voltage Defective connection on signal line Defective wiring	Indoor unit
A9	Malfunction of electronic expansion valve	Defective electronic expansion valve coil Defective indoor unit PCB Defective relay cables	Indoor unit
AA	Heater overheat	26WH is activated	Indoor unit
AF	Malfunction of a humidifier system	Humidifier unit (optional accessory) leaking Defective drain piping (upward slope, etc.) Defective indoor unit PCB	Indoor Unit
AH	Malfunction of dust collector of air cleaner	Defect of dust collecting element Stained insulator part Defect of high voltage power supply unit Defect of indoor unit PCB	Indoor Unit
AJ	Malfunction of capacity setting (Indoor unit PCB)	The capacity setting adaptor was not installed when replacing PCB. Defective indoor unit PCB	Indoor unit
C1	Failure of transmission (between indoor unit PCB and sub PCB)	Defective connection of the connector between indoor unit PCB	Indoor unit
C4	Malfunction of liquid pipe thermistor for heat exchanger	Defective thermistor for liquid pipe Defective indoor unit PCB Defective connector contac	Indoor unit
C5	Malfunction of gas pipe thermistor for heat exchanger	Defective thermistor for gas pipe Defective indoor unit PCB Defective connector contact	Indoor unit
C6	Malfunction of fan motor sensor or fan control driver	Defective fan PCB Defective connection of capacity setting adaptor Field setting error	Indoor unit
C7	Front panel driving motor fault	Defective front panel driving motor Defective limit switch	Indoor unit
C9	Malfunction of suction air thermistor	Defective thermistor for suction air Defective indoor unit PCB Defective connector contact	Indoor unit
CA	Malfunction of discharge air thermistor	Defective thermistor for discharge air Defective indoor unit PCB Defective connector contact	Indoor unit
CC	Malfunction of humidity sensor system	Defective humidity sensor Defective connector contact	Indoor unit
CJ	Room temperature thermistor in remote controller abnormality	Defective room temperature thermistor in remote controller Defective remote controller PCB External factor (Noise etc.)	Indoor unit

Fault codes – E to H

Fault code	Fault explanation	Possible causes	Origin of fault
E0	Protection devices activated (unified)	Protection device connected to outdoor unit PCB actuated Defective protection device connector contact	Outdoor unit
E1	Protection devices activated (unified)	Defective outdoor unit PCB Defective connection of inside/ outside relay wires	Outdoor unit
E3	Actuation of high pressure switch (HPS)	Dirty outdoor unit heat exchanger Defective high pressure switch Clogged refrigerant piping Defective connector contact	Outdoor unit
E3	System No.1 Actuation of high pressure switch (HPS)	Dirty outdoor unit heat exchanger Shortage of water volume Clogged refrigerant piping Defective connector contact Defective HPS	Outdoor unit
E4	Actuation of low pressure switch (LPS)	Abnormal drop in low pressure Defective low pressure sensor Defective outdoor unit PCB Defective connector contact	Outdoor unit
E5	Inverter compressor motor or overheat	Inverter compressor lock High differential pressure Defective inverter PCB UVW connection error Defective connector contact	Outdoor unit
E6	STD compressor motor overcurrent/lock	Defective compressor Defective control PCB The stop valve is not opened	Outdoor unit
E6	System No.1 Compressor overcurrent	Defective electronic expansion valve Shortage of refrigerant amount Defective compressor	Outdoor unit
E7	Malfunction of outdoor unit fan motor system	Fan motor failure Neglect to connect or defective connection of harness/ connector between the fan motor and the PCB Fan does not rotate due to foreign matters caught in it	Outdoor unit
E8	Overcurrent of inverter compressor	Defective compressor Defective inverter main circuit capacitor Defect of outdoor unit PCB Defect of power transistor	Outdoor unit
E9	Malfunction of electronic expansion valve coil	Disconnection of connectors from electronic expansion valves	Outdoor unit
EA	Malfunction of four way valve or cool/heat switch	Defective four way valve Shortage of gas Defective outdoor unit PCB Defective thermistor	Outdoor unit
EC	Malfunction of entering water temperature	Cooling water temperature abnormality Defective outdoor unit PCB Defective thermistor	Outdoor unit
F3	Malfunction of discharge pipe temperature	Defective discharge pipe thermistor Abnormal discharge pipe temperature Defective outdoor unit control PCB Defective connector contact	Outdoor unit
F6	Abnormal high pressure or refrigerant overcharged	Refrigerant overcharged Disconnection of heat exchanger deicer thermistor Disconnection of outdoor air thermistor Disconnection of liquid pipe temperature thermistor Defective outdoor unit PCB	Outdoor unit
H0	Malfunction of sensor system of compressor	Harness is disconnected, or defective connection Defective PCB	Outdoor unit
H1	Malfunction of room temperature sensor or humidifier unit damper	Defective limit switch Defective damper	Outdoor unit
H3	Malfunction of high pressure switch (HPS)	Defective high pressure switch Broken wire Defective outdoor unit PCB	Outdoor unit
H4	Malfunction of low pressure switch (LPS)	Defective low pressure switch Broken wire Defective outdoor unit PCB Defective connector contact	Outdoor unit
H4	Malfunction of low pressure switch (LPS)	Defective low pressure switch Broken wire Defective outdoor unit PCB Defective connector contact	Outdoor unit
H5	Malfunction of compressor motor overload thermistor	Defect of compressor motor overload thermistor Defective connector contact	Outdoor unit
H6	Malfunction of position detection sensor	Faulty contact of compress or cable Defective compressor Defective outdoor unit PCB	Outdoor unit
H7	Malfunction of outdoor unit fan motor signal	Abnormal signal from fan motor (Circuit failure) Disconnection/Short circuit in fan motor leads or disconnection of connector Defective inverter PCB	Outdoor unit
H8	Malfunction of compressor input (CT) system	Defective power transistor Defective reactor Faulty wiring of inverter system Defective outdoor unit PCB	Outdoor unit
H9	Malfunction of outdoor air thermistor	Defective connection of thermistor Defective outdoor unit PCB Defective outdoor air thermistor	Outdoor unit
HC	Malfunction of (hot) water temperature thermistor	Defective connection of thermistor Defective outdoor unit PCB Defective water temperature thermistor	Outdoor unit
HF	Alarm in thermal storage unit or storage controller	Thermal storage group defective wiring Defective setting Excess of thermal storage tank numbers	Outdoor unit
HJ	Malfunction of thermal storage tank water level	Low water level Defective switch setting Water level detecting sensor failure Defective connector contact	Outdoor unit

Fault codes – J to M

Fault code	Fault explanation	Possible causes	Origin of fault
J1	Malfunction of pressure sensor	Defective pressure sensor connector contact Defective pressure sensor Defective outdoor unit PCB	Outdoor unit
J2	Malfunction of current sensor of compressor	Defective current sensor Defective compressor Defective outdoor unit PCB	Outdoor unit
J3	Malfunction of discharge pipe thermistor	Defective connection of thermistor Defective discharge pipe thermistor Defective outdoor unit PCB	Outdoor unit
J4	Malfunction of low pressure equivalent saturated temperature sensor system	Defective connection of thermistor Defective thermistor Defective outdoor unit PCB	Outdoor unit
J5	Malfunction of suction pipe thermistor	Defective connection of thermistor Defective suction pipe thermistor Defective outdoor unit PCB	Outdoor unit
J6	Malfunction of heat exchanger thermistor	Defective connection of thermistor Defective heat exchanger thermistor Defective outdoor unit PCB	Outdoor unit
J7	Malfunction of thermistor (Refrigerant circuit)	Defective connection of thermistor Defective liquid pipe thermistor Defective outdoor unit PCB	Outdoor unit
J8	Malfunction of thermistor (Refrigerant circuit)	Defective connection of thermistor Defective liquid pipe thermistor Defective outdoor unit PCB	Outdoor unit
J9	Malfunction of thermistor (Refrigerant circuit)	Defective connection of thermistor Defective gas pipe thermistor Defective outdoor unit PCB	Outdoor unit
JA	Malfunction of high pressure sensor	Defective connector contact Connection of low pressure sensor in mistake for high pressure sensor Defective high pressure sensor Defective outdoor unit PCB	Outdoor unit
JC	Malfunction of low pressure sensor	Defective connector contact Connection of high pressure sensor in mistake for low pressure sensor Defective low pressure sensor Defective outdoor unit PCB	Outdoor unit
JE	Malfunction of oil pressure sensor or sub-tank thermistor	Defective connector contact Defective sub-tank thermistor Defective outdoor unit PCB	Outdoor unit
JF	Malfunction of oil level sensor or heating heat exchanger thermistor	Defective connector contact Defective heat exchanger thermistor Defective outdoor unit PCB	Outdoor unit
L0	Malfunction of inverter system	Shortage of power supply capacity Defective power transistor Defective outdoor unit PCB	Outdoor unit
L1	Malfunction of inverter PCB	Defective compressor wiring Defective outdoor unit fan motor Blown fuse Defective inverter PCB	Outdoor unit
L3	El.compo. box temperature rise	Fin temperature rise due to short circuit Defective outdoor unit fan motor Defective power transistor Defective outdoor unit PCB	Outdoor unit
L4	Malfunction of inverter radiation fin temperature rise	Fin temperature rise due to short circuit Defective fin thermistor	Outdoor unit
L5	Inverter instantaneous overcurrent (DC output)	Defective compressor coil (such as wiring disconnection or insulation failure) Compressor startup failure (mechanical lock) Defective inverter PCB	Outdoor unit
L6	Inverter instantaneous overcurrent (AC output)	Overcharge of refrigerant amount Shortage of power supply capacity Defective compressor Defective inverter unit	Outdoor unit
L8	Malfunction of overcurrent inverter compressor	Compressor overloaded Wiring disconnection in compressor coil Disconnection of compressor wiring Defective inverter PCB	Outdoor unit
L9	Malfunction of inverter compressor startup error (Stall prevention)	The stop valve is not opened Defective compressor Error in wire connections to compressor Large differential pressure before compressor startup Defective inverter PCB	Outdoor unit
LA	Malfunction of power transistor	Defective power transistor Defective compressor Defective inverter PCB	Outdoor unit
LC	Malfunction of transmission between control and inverter PCB	Defective connection between the inverter PCB and the control PCB External factors (e.g. noise) Defective inverter compressor Defective control PCB (transmission block)	Outdoor unit
M1	Malfunction of central remote controller PCB	Defective central remote controller PCB	Outdoor unit
M8	Malfunction of transmission between optional controllers for centralised control	Other centralised control power disconnection Centralised control reset switch ON Defective transmission wiring Central remote controller address change	Outdoor unit
MA	Improper combination of optional controllers for centralised control	Improper combination of optional controllers for centralised control More than one master controller is connected Faulty setting of centralised control Defect of centralised control	Outdoor unit
MC	Address duplication, improper setting	Address duplication of central remote controller	Outdoor unit

Fault codes – P to U

Fault code	Fault explanation	Possible causes	Origin of fault
P0	Shortage of refrigerant amount (thermal storage unit)	Shortage of refrigerant Clogged refrigerant piping	Outdoor unit
P1	Power voltage imbalance or inverter PCB	Open phase Interphase voltage imbalance Defective capacitor in the main circuit Defective wiring in the main circuit Defective inverter PCB	Outdoor unit
P2	Automatic refrigerant charge operation stop	The stop valve is not opened Closed valve of refrigerant tank	Outdoor unit
P3	Malfunction of thermistor in switch box	Defective connection of thermistor Defective reactor thermistor Defective inverter PCB	Outdoor unit
P4	Malfunction of radiation fin temperature sensor	Defective radiation fi n temperature thermistor Defective inverter PCB Defective INV. compressor Defective fan motor	Outdoor unit
P8	Heat exchanger freezing protection during automatic refrigerant charging	(Close the refrigerant cylinder. Start again from step 1.)	Outdoor unit
P9	Malfunction of fan motor (humidifier unit)	Defective fan motor Defective outdoor unit PCB Broken relay harness Defective connector contact	Outdoor unit
PA	Refrigerant cylinder during automatic refrigerant charging	Refrigerant cylinder of master unit is empty	Outdoor unit
PA	Broken wire of heater (humidifier unit)	Defective heater unit Defective thermistor Defective outdoor unit PCB	Outdoor unit
PC	Refrigerant cylinder during automatic refrigerant charging	Refrigerant cylinder of slave unit 2 is empty	Outdoor unit
PH	Automatic refrigerant charge operation nearly completed	Defective heater unit Defective connector contact Defective thermistor Defective outdoor unit PCB	Outdoor unit
PJ	Malfunction of capacity setting (Outdoor unit PCB)	Capacity setting adaptor is not installed Improper capacity setting adaptor Defective outdoor unit PCB	Outdoor unit
PJ	Improper combination between inverter and fan driver	Mis-matching of type of PCB Improper (or no) field setting after replacing outdoor unit main PCB	Outdoor unit
U0	Shortage of refrigerant	Refrigerant shortage and refrigerant clogging (wrong piping) Defective thermistor Defective low pressure sensor Defective outdoor unit main PCB	System
U1	Reverse phase, open phase	Power supply reverse phase T phase open phase Defective outdoor unit PCB (A1P)	System
U2	Malfunction of power supply or instantaneous power failure	Abnormal power supply voltage Instantaneous power failure Defective main circuit wiring	System
U3	Check operation not executed or transmission error	Check operation is not executed.	System
U4	Malfunction of transmission between indoor and outdoor unit	Short circuit in indoor-outdoor or outdoor-outdoor transmission wiring (F1 / F2), or wrong wiring Outdoor unit power supply is OFF System address does not match Defective indoor unit PCB Defective outdoor unit PCB	System
U5	Malfunction of transmission between indoor unit and remote controller	Transmission error between indoor unit and remote controller Connection of 2 main remote controllers (when using 2 remote controllers) Defective indoor unit PCB Defective remote controller PCB Transmission error caused by noise	System
U6	Malfunction of transmission between indoor units	Faulty wiring External factor (Noise etc.) Defective indoor unit PCB	System
U7	Malfunction of transmission between outdoor units or outdoor storage unit	Connection error of transmission wirings between outdoor unit and external control adaptor for outdoor unit Connection error of transmission wirings between outdoor units Defective outdoor unit PCB	System
U8	Malfunction of transmission between remote controllers	Transmission error between main and sub remote controller Connection between sub remote controllers Defective remote controller PCB	System
U9	Malfunction of transmission (other system)	Transmission error between other indoor and outdoor units Defective electronic expansion valve of other indoor unit Defective indoor unit PCB of other indoor unit	System

Fault codes – U to 7C

Fault code	Fault explanation	Possible causes	Origin of fault
UA	Defect of indoor/outdoor power supply	Wrong model connections Improper power supply Wrong PCB connected Defective PCB	System
UA	Improper combination of indoor and outdoor units	Excess of connected indoor units Defective outdoor unit PCB Mismatch of the refrigerant type of indoor and outdoor unit Setting of outdoor unit PCB was not carried out after replacing to spare PCB	System
UA	Remote temperature setting wire disconnection	Remote temperature setting wire disconnection Defective connector contact	System
UC	Malfunction of setting of centralised control equipment address	Address duplication of centralised control equipment Defective indoor unit PCB	System
UE	Malfunction of transmission between indoor unit and centralised control equipment	Transmission error between optional controllers for centralised control equipment and indoor unit Connector for setting main controller is disconnected.(or disconnection of connector for independent / combined use changeover switch.) Defective PCB for central remote controller Defective indoor unit PCB	System
UF	System is not set yet	Improper connection of transmission wiring between indoor-outdoor units and outdoor-outdoor units Failure to execute check operation Defective indoor unit PCB Stop valve is not opened	System
UH	Malfunction of system	Improper connection of transmission wiring between indoor-outdoor units and outdoor-outdoor units Defective indoor unit PCB Defective outdoor unit PCB	System
UJ	Malfunction of transmission (accessory device)	Defect of accessory devices Faulty wiring	System
60	External protection device activated (Heat reclaim ventilator)	Actuation of external protection device Defective output signal wiring Defective control PCB	Other
64	Malfunction of indoor air thermistor (Heat reclaim ventilator)	Defective connector contact Defective indoor air thermistor Defective control PCB
65	Malfunction of outdoor air thermistor (Heat reclaim ventilator)	Defective connector contact Defective outdoor air thermistor Defective control PCB
6A	Malfunction of damper system (Heat reclaim ventilator)	Defective connector contact Defective limit switch Defective damper motor
70	System No. 2 Compressor overheat	Shortage of refrigerant amount Defective connector contact Leakage of four way valve
71	System No. 2 Compressor overcurrent	Shortage of refrigerant amount Short circuit Defective compressor
72	System No. 2 Compressor overcurrent	Defective fan motor connector contact Defective fan motor Defective PCB
73	System No. 2 Actuation of high pressure switch (HPS)	Dirty heat exchanger Shortage of water volume Clogged refrigerant piping Defective connector contact Defective HPS
74	System No. 2 Actuation of low pressure switch (LPS)	Clogged refrigerant piping Defective connector contact Shortage of gas Defective LPS
75	System No. 2 Malfunction of low pressure sensor	Defective connector contact Defective low pressure sensor Defective PCB
76	System No. 2 Malfunction of high pressure sensor	Defective connector contact Defective high pressure sensor Defective PCB
77	System No. 1 Malfunction of fan inter lock	Defective relay contact Broken wire
78	System No. 2 Malfunction of fan inter lock	Defective relay contact Broken wire
7A	System No. 2 Malfunction of compressor current sensor	Defective current sensor Defective compressor Defective outdoor unit PCB
7C	System No. 2 Malfunction of pump inter lock	Cooling water pump interlock actuated

Fault codes – 80 to 99

Fault code	Fault explanation	Possible causes	Origin of fault
80	Malfunction of entering water temperature thermistor	Defective connector contact Defective entering water temperature thermistor	Other
81	Malfunction of leaving water temperature thermistor or drain pipe heater	Defective connector contact Defective leaving water temperature thermistor	Other
82	System No. 1 Malfunction of refrigerant thermistor	Defective connector contact Defective refrigerant thermistor	Other
83	System No. 2 Malfunction of refrigerant thermistor	Defective connector contact Defective refrigerant thermistor	Other
84	System No. 1 Malfunction of heat exchanger thermistor	Defective connector contact Defective heat exchanger thermistor	Other
85	System No. 2 Malfunction of heat exchanger thermistor	Defective connector contact Defective heat exchanger thermistor	Other
86	System No. 1 Malfunction of discharge pipe thermistor	Defective connecting connector Defective discharge pipe thermistor	Other
88	System No. 2 Malfunction of discharge pipe thermistor	Shortage of gas Defective discharge pipe thermistor Defective connector contact Clogged refrigerant piping	Other
89	Malfunction of brazed-plate heat exchanger freezing	Dirty heat exchanger Shortage of refrigerant amount Defective thermistor	Other
8A	System No. 2 Malfunction of leaving water temperature thermistor	Defective connector contact Defective leaving water temperature thermistor	Other
8E	System No. 1 Malfunction of suction pipe thermistor 1 for heating	Defective connector contact Defective suction pipe thermistor	Other
8F	System No. 1 Malfunction of suction pipe thermistor 2 for heating	Defective connector contact Defective suction pipe thermistor	Other
8H	Abnormal hot water high temperature	Three way valve malfunction Defective thermistor Defect of water temperature setting	Other
90	Abnormal chilled water quantity or abnormal AXP	Shortage of water volume Disconnection of AXP	Other
91	System No. 2 Malfunction of electronic expansion valve	Defective connector contact Defective electronic expansion valve coil	Other
92	System No. 2 Malfunction of suction pipe thermistor	Defective connector contact Defective suction pipe thermistor	Other
94	Malfunction of transmission (between heat reclaim ventilator and fan unit)	Malfunction of transmission (between heat reclaim ventilator and fan unit)	Other
95	System No. 1 Malfunction of inverter system	Defective fan inverter unit	Other
96	System No. 2 Malfunction of inverter system	Defective fan inverter unit	Other
97	Malfunction of thermal storage unit	Defective thermal storage unit	Other
98	Malfunction of thermal storage brine pump	Actuation of thermal storage brine pump overcurrent (OC)	Other
99	Malfunction of thermal storage brine tank	Low water level of thermal storage brine tank	Other

Time to call the experts?

If you are still having issues - it's time to call in the experts. Our Brisbane-based air conditioning repairs team are on hand to give you the assistance you need. Call us on 07 3283 5566 or fill out a quick quote to get your air con back up and running!

Daikin Air Conditioner Troubleshooting