My Unit is less than 5 yrs old. A local HVAC tech took a look, but he has limited experience with ductless. I live in metro Atlanta, we had a “snow storm” accompanied by random power outages. He suggested a power surge caused an issue. A second tech will be stopping by tomorrow. I will keep you posted if the situation is resolved. Answer from AverageDownBeta on reddit.com
Daikin
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Simple Self-Diagnosis by Malfunction Code After Sales Service Division (SM-TS3)
J3 · Malfunction of discharge pipe · thermistor · Defective connection of thermistor · Defective discharge pipe thermistor · Defective outdoor unit PCB · k k k k · k · J4 · Malfunction of low pressure · equivalent saturated temperature · sensor system ·
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J3 error Daikin Ac What is the problem
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Daikin Ducted System J3 Error - Air conditioners
Hi Guys, Our Daikin ducted system threw a J3 error a couple of weeks ago, stopped working for a while and then came good. Air con guy was supposed to get back c More on forums.whirlpool.net.au
Heat not working with Daikin
My Unit is less than 5 yrs old. A local HVAC tech took a look, but he has limited experience with ductless. I live in metro Atlanta, we had a “snow storm” accompanied by random power outages. He suggested a power surge caused an issue. A second tech will be stopping by tomorrow. I will keep you posted if the situation is resolved. More on reddit.com
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January 10, 2025Daikin J3 Fault - Refrigeration-Engineer.com forums
Hi Guys, So I have..(installed myself 2007) 1No. 2MXS50FV1B 2No. FLXS25BAVMB Customer knows how to use the self diagnosis so called up with a J3 fault. J3 initially relates to abnormal discharge sensor so I ordered and fitted a new set of thermistors S90. (discharge, ambient air and condenser ... More on refrigeration-engineer.com
J3 and J6 error code on Daikin | I need help before I call a ...
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Daikin error code - J5,J6,J7,J8,J9. For replace thermistor for ...
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How to solve Daikin air conditioner error code J6? New Tip #J6 ...
Reddit
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J3 and J6 error code on Daikin | I need help before I call a ...
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Whirlpool
forums.whirlpool.net.au › home › air con › daikin ducted system j3 error
Daikin Ducted System J3 Error - Air conditioners
As you said, it is a problem with the thermistor. If the error code that can be found online is accurate, J3 is a Malfunction of the discharge pipe thermistor.
Daikin India
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Error Codes | Daikin
The remote controller can receive relevant error codes from the indoor unit. The code indication changes as shown below, and notifies with a long beep. ... Customer Support Information: WhatsApp us your query @ 9871409300. Call Our Customer Contact Centre: 011-40319300 / 1860 180 3900 or Write To Us at customerservice@daikinindia.com X
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What do Daikin error codes J3 and J6 mean?
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JustAnswer
justanswer.com › hvac › jimqe-system-code-j3-technical-saying-remote-control.html
Troubleshooting J3 Code on Remote Control System – Expert Help
Code J3 typically signals a remote control communication fault or power supply issue. First, check the system’s fuse and circuit breaker for resets or faults. Inspect wiring connections between the indoor unit and remote control receiver for ...
CoolAutomation
coolautomation.com › blog › daikin error codes: comprehensive breakdown
Daikin Error Codes: Comprehensive Breakdown
July 20, 2025 - Following are some of the most common Daikin error codes and their presumed causes. Tired of wasting time with repeated on-site visits, finally diagnosing a problem, and then realizing you lack the necessary parts?
Parts Town
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Daikin Air Conditioner Fault Codes | Parts Town
Outdoor units have fault codes that either start with the letter E, F, H, J, L, M or P. For more guides on HVAC equipment, check out our full collection of Daikin manuals for assistance.
Reddit
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r/hvacadvice on Reddit: Heat not working with Daikin
January 10, 2025 -
I have a Daikin air conditioner with heat in the basement. It has two indoor unit connected to one outdoor unit. Bought this house in summer and first time turning it on in 5 months. The heat is not working. One of the indoor unit has no error code 00. Second one double beeps at J3 and J6. The outdoor unit is running, is it fully broken or anything I can do ?
Top answer 1 of 4
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My Unit is less than 5 yrs old. A local HVAC tech took a look, but he has limited experience with ductless. I live in metro Atlanta, we had a “snow storm” accompanied by random power outages. He suggested a power surge caused an issue. A second tech will be stopping by tomorrow. I will keep you posted if the situation is resolved.
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Update: Was able to determine the correct error using the remote. J is the correct letter, but 3 and 6 were not the correct numbers (that why it beeps twice). Followed the instructions in the service manual and got a single error code JA (long beep). Need to get a sensor replaced.
Daikin ONE
daikinone.com › smart_thermostats › oneplus › pros › PhaseTwoErrorCodes.pdf pdf
Climate Talk Fault Code Dealer error code Possible causes Corrective actions
Sensor error · RA, Altherma split · H9 · 0x49 · Outdoor temperature sensor/P4, J3, J6, H9” Thermistor · or Related Abnormality (Outdoor Unit) error · •Disconnection of the connector for the thermistor. •Thermistor corresponding to the error code is defective.
ManualsLib
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J3-00 - Outdoor Unit: Malfunction Of Discharge Pipe Thermistor; J6-00 - Outdoor Unit: Malfunction Of Heat Exchanger Thermistor; L3-00 - Outdoor Unit: Electrical Box Temperature Rise Problem - Daikin Sensira Series Service Manual [Page 22] | ManualsLib
September 14, 2021 - Daikin Sensira Series Manual Online: j3-00 - outdoor unit: malfunction of discharge pipe thermistor, J6-00 - Outdoor Unit: Malfunction Of Heat Exchanger Thermistor, L3-00 - Outdoor Unit: Electrical Box Temperature Rise Problem.
North NJ HVAC
northnjhvac.com › daikin-heat-pump-error-codes-troubleshooting
Comprehensive Guide to Daikin Heat Pump Error Codes and Troubleshooting – North NJ HVAC
August 10, 2025 - The H5 code alerts to indoor fan motor issues, and the J3 code signals outdoor fan motor malfunctions. These errors might stem from motor winding problems, obstructed blades, or control circuit faults. Maintenance includes examining fan blades for debris, testing motor resistance, and verifying ...
Airchillac
airchillac.com › daikin-ac-error-codes
Daikin AC Error Codes Guide – Fixes, and Troubleshooting Tips | AirChill AC Maintenance and Duct Cleaning
June 5, 2025 - Some common Daikin inverter AC error codes are: L5 – Inverter problem · H6 – Compressor control issue · J3 – Discharge sensor problem · If your Daikin air conditioner shows error code L5, it may need professional repair.
Daikin
daikincomfort.com › docs › default-source › lv-series-wall-mount › sm-fd(t)xs09-36lvju-rk(x)s09-36lvju.pdf pdf
Service Manual Inverter Pair FTXS-L Series FDXS-L Series SiUS091133
Error Codes and Description......................................................................
Daikin ONE
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O&Kmarts
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Common DAIKIN AC Error Code Lists
DAIKIN air conditioner/air conditioning system malfunction codes consist of one letter or number plus one number or letter. The letters include A, C, E, H, F, J, L, P, U, and M, and the numbers include 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9. These codes are divided into indoor unit related, outdoor unit related, system related codes and others.
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What causes Daikin Altherma errors j3-00 and e5-00?
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Refrigeration-Engineer.com
refrigeration-engineer.com › forum › refrigeration-divisions › air-conditioning › 34203-daikin-j3-fault
Daikin J3 Fault - Refrigeration-Engineer.com forums
July 17, 2013 - FLXS25BAVMB Customer knows how to use the self diagnosis so called up with a J3 fault. J3 initially relates to abnormal discharge sensor so I ordered and fitted a new set of thermistors S90. (discharge, ambient air and condenser ...
212 HVAC
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Daikin Air Conditioning Error Codes | 212 HVAC
March 11, 2024 - A complete Daikin step-by-step guide to troubleshooting, error codes and what they mean, model numbers, and more!