Flexible. If its not a power outage, perform the following checks: You know your Fujitsu air conditioner is not working when it wont cool. I Have a Fujitsu AC system with an error code.R.C. Group Companies in Charge of United Kingdom, Tax Strategy for Fujitsu General Air Conditioning (UK) Limited, Split DHW Integrated Type Super High Power Series, Split DHW Integrated Type High Power Series, FUJITSU GENERAL AIR CONDITIONING (UK) LIMITED. Yellow Light Swing = Slow Blink. Troubleshooting a Green Blinking Air Con Light Thats if it wont show continuity on a multitester/multimeter, Clean the air filter and drain line if they are clogged, Set the thermostat on Cool Mode but if its defective, call an expert technician, Also, call an expert to fix a faulty timer. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. Clean the condenser, filter, outlet port, and intake grille if dirt-clogged, and open the windows and doors. Checked the fuse box and nothing tripped out.Any suggestions? Overall, here are the reasons the AC wont blow cold air: Start by setting the thermostat on Cool Mode and ensuring its temperature is not greater than the room temperature. E3:00 Return air thermistor short circuit, EF:00 Discharge pipe temp. Please leave your question below. In such cases, you will have no choice but to call a professional. Proudly serving our customers for over 60 years. With over 40 years of Heating, Ventilation and Air Conditioning (HVAC) experience and a 99.99% product performance rate, you can rest easy knowing that Fujitsu General ductless systems will keep you and your family comfortable year-round. If it is, wait for the power restoration. VerticalScope Inc. All Rights Reserved. ), Why the Air Conditioner Turns On By Itself, Power problem (power outage or power failure to reach the AC), thermostat fault (wrong setting or damaged thermostat), faulty timer or clogged filter or drain line, Check for a possible power outage, reset the breaker, and replace any broken wires or blown-up fuse. liquid temp. APCO Supply serving the apartment maintenance industry for over 50 years. Efficient. FUJITSU Inverter R410a not working, flashing lights Hi, My AC is not working. However, aircon do break down from time to time. And with available utility rebates, the savings start on day one. The purpose of the filters is to purify the air that is fitted to the indoor aircon unit, making sure only the fresh air gets to the room. Furthermore, avoid overcrowding in a room and move the AC away from the heat source. Efficient. As reliable as Fujitsu air conditioners are, they occasionally fail. Operate Fujitsu General's AIRSTAGE systems with a mobile device from anywhere out of your home or when you are on traveling. Most people dont know it, but an AC doesnt just cool your space but can also warm it. It had been working fine yesterday and this morning. Open the windows and doors, avoid overcrowding and move the heat source away from the AC. If the operation light is flashing slowly sometimes and on solid the rest of the time that indicates it is defrosting. All of our products are designed for quality, energy efficiency and reliability to deliver the total home comfort you can expect from Heil Heating & Cooling Products. AIRSTAGE mini-split ductless cooling & heating systems ensure optimal comfort with individual, room-by-room temperature control. Appliance Repair | Learn How To Fix Your Appliances. APCO Inc. 5511 Enterprise Dr. Lansing, MI 48911. Learn how your comment data is processed. It isnt easy to live in Singapore without an air-conditioner. Bring comfort into any space, no matter the shape. Pressing the self test buttons and it flashes 20:00. RC address 00. Variable speed inverter compressor with up to 40.0 SEER ratings. So, if any of those issues are troubling you and you dont know what to do, this troubleshooting guide will help you. You could try waiting for about 30 minutes, and then it should start to heat again. The video shows how an indicator blinks on model ASTG24KMCA. Flexible single and multi-zone compatible units with a variety of indoor unit styles available. If it does not, a mini-split repair needs to be done as soon as possible/ Where do I Find the Error Code on my Fujitsu Aircon? WE have a Fujitsu ASTA30LFC indoor wall mounted inverter unit and we can't get the machine to go onto operation mode. the serviceman said that the problem lies in the control panel. From https://www.justanswer.com/ythiJustAnswer Customer from San Antonio, TX: fujitsu air conditioner is flashing operation, timer, and economy lights and no. Matt Peterson, President & COO, Fujitsu General America, Inc. Fujitsu Generals sustainability through innovation is helping to build trust with customers around the globe. Ask Our Pros-Owner Assistance - NO DIY advice will be given. Problem too high = short of gas, Press Energy Save & Zone Control buttons simultaneously for longer, than 3 secs to return to normal operating mode, (2) Press the master control button and the fan control button simultaneously for 2 seconds or more to start the test run, (3) Press the start/stop button to stop the test run, When the error indication E:EE is displayed, follow the following items. It is recommended to get it checked thoroughly by a professional. Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OOError Code Definition = ID to RC Comms Failif(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'removeandreplace_com-medrectangle-4','ezslot_4',635,'0','0'])};__ez_fad_position('div-gpt-ad-removeandreplace_com-medrectangle-4-0'); Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O1Error Code Definition = ID to OD Comms Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O2Error Code Definition = ID Air Sensor Open, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O3Error Code Definition = ID Air Sensor Close, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O4Error Code Definition = ID Pipe Sensor Open, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O5Error Code Definition = ID Pipe Sensor Close, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O6Error Code Definition = OD Pipe Sensor Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O8Error Code Definition = Power Source Connection Failure, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = O9Error Code Definition = Drain Problem Float switch operated, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OAError Code Definition = OD Air Sensor Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OCError Code Definition = Discharge sensor Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = OEError Code Definition = Outdoor High Pressure Heatsink error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 11Error Code Definition = OD PCB Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 12Error Code Definition = ID Fan Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 13Error Code Definition = OD Signal Abnormal ID signal error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 14Error Code Definition = OD EEPROM Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 15Error Code Definition = Compressor Temp Failure, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 16Error Code Definition = Pressure Switch Error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 17Error Code Definition = IPM Error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 18Error Code Definition = CT Error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 19Error Code Definition = Active Filter Module Error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1AError Code Definition = Compressor Failure, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1BError Code Definition = OD Fan Failure, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1CError Code Definition = Inverter to PCB Comms Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1DError Code Definition = 2 Way Valve sensor Fail, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1EError Code Definition = Expansion Valve Error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 1FError Code Definition = Connection ID Unit Error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 20Error Code Definition = Indoor manual switch abnormal, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 24Error Code Definition = Excessive high pressure protection on cooling, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 25Error Code Definition = PFC circuit error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 26Error Code Definition = Indoor signal error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 27Error Code Definition = Indoor signal error. Industry leading heating and cooling capacity with quiet operation.

SEER stands for Seasonal Energy Efficiency Ratio and applies to cooling efficiency for central air conditioners and heat pumps. Fujitsu AOTA90LALT. Components Coils, Heaters, Motors, etc. Consider the tips in addition to your Fujitsu manual in addressing the various issues that may arise. No, the outside fan is not spinning or making any noise. Why is my Fujitsu Heat Pump Light Flashing If the heat pump unit is flashing, it's in defrost mode. Code Consists of Indoor Unit Address Followed by the Fault Code Below.No E denotes No Fault. Thank you! p>}#GO>rJt)\Jt)\Jt)\;( If your air conditioner starts working after you have shut it down for a couple of cars, it means that the problem is gone, but you should still get it checked. The display shows error code EE:2E, Any idea how to fix this issue? (adsbygoogle = window.adsbygoogle || []).push({}); Error contents = Communication error (indoor unit to remote controller), Error contents = Communication error (indoor unit to outdoor unit), Error contents = Room temperature sensor open, Error contents = Room temperature sensor short-circuited, Error contents = Indoor heat exchanger temperature sensor open, Error contents = Indoor heat exchanger temperature sensor shortcircuited, Error contents = Outdoor heat exchanger temperature sensor open, Error contents = Outdoor heat exchanger temperature sensor shortcircuit, Error contents = Power source connection error, Error contents = Outdoor temperature sensor open, Error contents = Outdoor temperature sensor short-circuited, Error contents = Discharge pipe temperature sensor open, Error contents = Discharge pipe temperature sensor short-circuited, Error contents = Outdoor high pressure abnormal, Error contents = Discharge pipe temperature abnormal, When the outdoor temperature drops, the outdoor units fans may switch, ERROR : HEAT & COOL MODEL (REVERSE CYCLE) ONLY. That's why thousands of families choose Fujitsu General AIRSTAGE Ductless Mini-Split Systems for whisper-quiet, energy-efficient heating and cooling for their homes. Wall Mounted Single Systems ASY, ASYA & ASYB, All Other Wireless Indoor Units AUY, ABY & AWY Models, Including Multi Systems (Not J Series or VRF), Further Interrogation by Pressing Test Button on Infra Red RC, Further Interrogation by Pressing Test Button on Infra Red RCl, Further Interrogation by Pressing Test Button on Infra Red, Economy = Rapid flash (0.1s on / 0.1s off), Error = Indoor unit PCB model information error, Error = Indoor unit Heat Ex. The main unit is outside and the model is AOT36RC(3) It is 21 years old but has been seldom used.The clock started flashing what looks like 2E:EE. A flashing light on a heat pump may be an indicator that the battery either has a defect or the battery is low and needs to be charged. Hanging out with the mice behind the fridge talking bad about the roaches in the oven. Since this is usually a minor problem, it will be best to first check on the battery before you start disassembling your outdoor unit for a likely problem. Professional Member*/Membership Committee. Once that happens, the air conditioner wont work after the power restoration not until you reset the breaker. Heating Efficiency Dependent on outdoor unit pairing. There is another website more suitable for your country. Clean the air intake grille to get rid of the dust. No E denotes No Fault. ), Where Are Bosch Dishwashers Made? The air conditioner worked for a couple of times after this and then stopped working altogether. the time display stops flashing. PCB Failure. Bring comfort into any space with our new energy-efficient, innovative, and stylish High Wall heat pump unit. Because our price on this item may be lower than specific manufacturers allow us to show, we need you to input the above information first. This new Cassette indoor unit checks all the boxes. Required fields are marked *. Need help deciding what kind of heating and cooling product is right for you? Domestic & Commercial. https://www.heil-hvac.com/en/us/products/ductless-systems/dlcpra/, https://images.carriercms.com/image/upload/w_auto,c_lfill,dpr_1.5,q_auto,f_auto/v1587441513/icp/heil/products/ductless/quietcomfort-deluxe-heat-pump-DLCPRA.png, https://www.heil-hvac.com/en/us/products/ductless-systems/dlfpha/, https://images.carriercms.com/image/upload/w_auto,c_lfill,dpr_1.5,q_auto,f_auto/v1587441512/icp/heil/products/ductless/quietcomfort-deluxe-high-wall-indoor-unit-DLFPHA.png, https://www.heil-hvac.com/en/us/products/ductless-systems/dlcsra/, https://images.carriercms.com/image/upload/w_auto,c_lfill,dpr_1.5,q_auto,f_auto/v1587441514/icp/heil/products/ductless/quietcomfort-heat-pump-DLCSRA.png, https://www.heil-hvac.com/en/us/products/ductless-systems/dlcmrb/, https://images.carriercms.com/image/upload/w_auto,c_lfill,dpr_1.5,q_auto,f_auto/v1654007151/icp/heil/products/ductless/quietcomfort-mulit-zone-heat-pump-DLCMRB.png, https://www.heil-hvac.com/en/us/products/ductless-systems/dlfshc/, https://images.carriercms.com/image/upload/w_auto,c_lfill,dpr_1.5,q_auto,f_auto/v1676486783/icp/heil/products/ductless/quietcomfort-high-wall-indoor-unit-DLFSHC.png. Airpro service all Perth areas and can supply Fujitsu spare parts to resolve your Fujitsuerror code. Fix Consider inspecting your air conditioner for dirt clogging, notably its intake grille, and cleaning it. Quiet. Depending on the problem, youll need to unclog or reconnect the tube. Quiet operation with ratings up to 17.6 SEER. Check The Remote Check aircon remote Count the blinks of each LED indicator and contact Fujitsu General's customer service or your local service agent. Fujitsu Air Conditioner Hardwired Remote Controller System Error Codes.

Heat pumps heat your home using electricity as their fuel source, and their efficiency is measured as Heating Seasonal Performance Factor (HSPF). The discreet and economical ductless air conditioners and heat pumps. To Initiate Test OperationSwitch Unit Off & Press Master & Fan Buttons together for 3 seconds.Press Start/Stop to Initiate. Some require an expert HVAC technicians help. Go through the various steps listed in the aircon troubleshooting guide and figure out the exact problem. And if the issue is a refrigerant leak, call an HVAC expert to fix it. It is important to check out the reviews of a few companies before deciding to call one. Why is my Fujitsu air conditioner operation light blinking? In that case, you should clean the AC, especially its intake grille. Test 0084 Answer If your air conditioner doesn't work, ask for technical assistance. We recommend firstly turning the isolation switch off on the air conditioner for at least 5 minutes which will hopefully reset the fault. The green light flashes for about 3-7 seconds to show how urgent the cleaning should be. Copyright 2013 to 2023 RemoveandReplace.com - Appliance Repair | Learn How To Fix Your Appliances. Quiet. AIRSTAGE SPLIT TERMINAL HEAT PUMP SYSTEMS, Login to CONNECT (Rep/Distributor/Contractor), Online Toolbox Login (For Contractors Only), Central Air Conditioners, Heat Pumps, and Furnaces. You can troubleshoot a Fujitsu AC that wont turn on, blow cold air, heat, or work after a power outage. There are a lot of companies in Singapore that offer repair services. Welcome to the Fujitsu General Resource Center. Green Light Timer = Slow Blink. I have a general duct type split AC.I have a problem, put on the wired thermostat fan and 2 or 3 minutes it is working then after an error code came up EE:EE and stopped the fan motor.Any suggestions? Reset the power breaker if it trips and replace the fuse if its faulty. Green Light Timer = Yellow Light Swing = Normal. Address: 473 Mundet Place; City: Hillside; State: New Jersey; Zip code: 07205; Country: United States, Copyright 2023 Machine Answered | All Rights Reserved, 5 Reasons Your Frigidaire Microwave Buttons Not Working (Fixed! n07QlDr&M71lb4t; NCi4t; NCi,K2Y* KOy4x|. To protect your warranty contact Airpro with your Fujitsuerror code and discuss with us your options for rectifying the issue. This new light commercial ductless heat pump checks all the boxes. Quiet. It doesnt get cool like it used to.Can I do a reset? Red Light Operation = Blinking. Our dependable and efficient ductless heat pumps for light commercial applications. If the intake filter is removed during operation, a safety device will stop the operation of the plasma filter unit. Tamar D Mechanic II Quiet. As mentioned above, your air conditioning unit would have come with an instruction manual. The unit will start and the remote controller's operation lamp (green) will light up. If this does not work and the system is still within the warranty period, please visit Fujitsu Service. They also cover the ARY60U, ARY54U Single and AOY19/24F/U Multi System Code Consists of Indoor Unit Address Followed by the Fault Code Below. This error message may convey the problem with your air conditioning unit. Turn off the power breaker if thats not the case. we took it to an electronics expert ,he checked it and didn't find any corrupted element in the circuit. 517-882-2455. ft. Electric Dryer with Wrinkle Prevent Option, Super Capcity Washer with Stainless steel basket, 43" Class TU7000 Crystal UHD 4K Smart TV (2020), 55" Class TU7000 Crystal UHD 4K Smart TV (2020), 65" Class TU7000 Crystal UHD 4K Smart TV (2020), 6.5 cu. Fujiaire AC chiller outdoor red light flashing 6 times.Fujiaire AC model number f3mc20ca-e31n. Fujitsu is one of the brands of aircon in Singapore. Aircon servicing not only prolongs the units life but also ensures that you are getting good quality air in your home or office. To Select Mode Operation 1 Press the START/STOP button. Also, turn the thermostat off for about 30 minutes to reset it. Fujitsu ASTA30LCC is flashing operation (red) and timer (green) together 3 times, then 1 flash timer (green) Indoor Sensor fail, possibly with clean filter. This single-zone ductless heat pump checks all the boxes. If these issues happen, a reset should solve it, but if it persists, consult an experienced technician. (3) Press the set temperature buttons simultaneously for 5 seconds or more to stop the self-diagnosis. Call an expert in case of a refrigerant leak. But as youll note, not all problems are fixable. The LED lamps operate as follows according to the error contents. How to Count the Blinks of an LED Indicator The video shows how an indicator blinks on model ASTG24KMCA. You can also troubleshoot an option not responding to the remote or one that blinks green, leaks, or wont turn off. If that is the case, it may be a sign of something broken inside the unit. Red Light operation = On. sensor error, Error = Compressor rotor position detection error, Operation = 10 flash (0.5s on / 0.5s off), Looking for Daikin Error Codes? Intelligent. and all the sensors are fine. This is an automatic response to protect the unit from the increase in voltage. Red Light Operation Green Light Timer Current Models Off 2 Flashes Reverse Comms Fail at Startup Off 3 Flashes Reverse Comms Fail In Use Off 4 Flashes Forward Comms Fail at Startup Off 5 Flashes Forward Comms Fail In Use Off 8 Flashes Wired Remote Control Failure 2 Flashes 2 Flashes Indoor Air Sensor Fail 2 . If you are looking for a reliable aircon service, call us today at +65 8488 8444, Address: 8 Ubi Road 2 #04-01, Zervex, 408538, Website: https://www.absoluteservices.com.sg. These pages cover the current Inverter product range. Samsung Washing Machine Error Codes What Do They Mean? Ensure you move closer to the air-con and avoid walls and other heavy barriers. It is important to keep in mind that all of the models have different service procedures. Efficient. Zone Control buttons simultaneously for longer than 3 secs. There may be a sound coming from the unit. Please enter a password for your user account. Your email address will not be published. Changing the Sensor PositionThe unit can sense the air temperature at the unit or controllerTurn Unit OffTo change press THERMOSENSOR button for 5 seconds to unlockToggle the THERMOSENSOR button & controller is displayedSet to desired setting (unit or controller)Press THERMOSENSOR button for 5 seconds to lockif(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'removeandreplace_com-leader-4','ezslot_17',646,'0','0'])};__ez_fad_position('div-gpt-ad-removeandreplace_com-leader-4-0'); Two Handsets/1 Unit set on RC DIP SWsSingle handset DIP SW1 is On & 2 is OffDual Handset Master Both On & Slave both Off, Group Control up to 16 Unit from 1 RC HandsetSet DIP SW3 on RC to ONSet Each ID Unit Rotary SW to Unit Address (0-15) in series, Auto Restart on Power FailureDIP SW2-3 on ID UnitOff is auto restart (std)/On is Manual Restart, Auto ChangeoverDIP SW5 on RCOn is auto changeover (std)/Off is Manual, Memory Retention on Power FailureDip SW6 on RCOn is Memory/Off is no memory. Count the blinks of each LED indicator and contact Fujitsu General's customer service or your local service agent. How Do I Fix My Bathroom Vent Fan Thats Not Working? Usually, the Fujitsu ACs Air Clean light comes on and blinks green to indicate that the AC requires urgent maintenance. Consider it a preventative alert to avoid damage to the system. They also cover the ARY60U, ARY54U Single and AOY19/24F/U Multi Systems. Knowing the error code definition will help you to understand the present fault. to perform the self-diagnosis. They also cover the ARY60U, ARY54U Single and AOY19/24F/U Multi Systems. You can delete the item from your cart at any time. U.S. sales only. This new heat pump checks all the boxes. Wall Mounted Single Systems ASY, ASYA & ASYB Includes AWYZ Nokria Models. Well look at the 8 cases, their likely causes, and recommended fixes. error. Restarting the machine and checking the pipes, circuits, and other relevant parts. ins.style.display='block';ins.style.minWidth=container.attributes.ezaw.value+'px';ins.style.width='100%';ins.style.height=container.attributes.ezah.value+'px';container.appendChild(ins);(adsbygoogle=window.adsbygoogle||[]).push({});window.ezoSTPixelAdd(slotId,'stat_source_id',44);window.ezoSTPixelAdd(slotId,'adsensetype',1);var lo=new MutationObserver(window.ezaslEvent);lo.observe(document.getElementById(slotId+'-asloaded'),{attributes:true}); NOTE: There are also general troubleshooting charts below to assist you in fixing your Fujitsu AC and a PDF Service Manual file for most current Fujitsu Air Conditioners (See model numbers that apply to the error codes at the bottom of this page).if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[728,90],'removeandreplace_com-box-3','ezslot_1',671,'0','0'])};__ez_fad_position('div-gpt-ad-removeandreplace_com-box-3-0'); Fujitsu Air Conditioning AC Error Codes And Troubleshootingif(typeof ez_ad_units!='undefined'){ez_ad_units.push([[580,400],'removeandreplace_com-medrectangle-3','ezslot_2',634,'0','0'])};__ez_fad_position('div-gpt-ad-removeandreplace_com-medrectangle-3-0'); Covers the current Inverter product range.They also cover the ARY60U, ARY54U Single and AOY19/24F/U Multi System. Quiet. Do take note that there're 3 lights on the indoor unit mainly: Operation, Timer & Economy Light. ), 4 Whirlpool Duet Washer ResetTechniques (Explained! Some of the common problems that develop in an air-conditioner are that it starts giving smell due to water leakage, sometimes the light starts blinking, and there are times when it stops cooling. Blocked condensate line or tube disconnection, Unblock the condensate line and reconnect disconnected tubes, Dirty condenser or evaporator or a faulty sensor, Clean a dirty condenser or evaporator and call an expert to fix a faulty sensor, Replace the fuse (check the fuse box on the outside wall) if its blown. These pages cover the current Inverter product range. Please, A unique indoor air handler capable of connecting select ductless systems with traditional ducted systems. Compatible with select single and multi-zone ductless systems. But before you can rush to call the technician, you should be convinced that the issue is not DIY. Call an HVAC expert to fix a faulty compressor or a refrigerant leak, A dirty filter, blocked outlet port/intake grille, wrong thermostat setting, power failure, or a refrigerant leak. Any images or third-party logos belong to their respective copyright holder and used for informational purposes. The error code will then be displayed on the LCD. When in use, it is a simple, intuitive remote controller. This new high wall unit is really quiet and beautifully designed to enhance the look of any space. All instruction manuals usually contain a troubleshooting guide. Middle temp.sensor error, Error = Outdoor unit main PCB model information error or communication error, Error = Active filter error, PFC circuit error, Error = Display PCB microcomputers communication error, Error = Outdoor unit Heat Ex. Most of the time, you will find the root cause of the aircon light blinking problem. Maru. There are times when you can simply switch off their air-conditioner, and it will start working again when you switch it on. Below are the eight most common Fujitsu AC problems for troubleshooting: Several issues can prevent a Fujitsu AC from turning on, ranging from power failure to a faulty thermostat and clogged drain line. Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 28Error Code Definition = Indoor heat exchanger temperature errorif(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'removeandreplace_com-leader-2','ezslot_15',644,'0','0'])};__ez_fad_position('div-gpt-ad-removeandreplace_com-leader-2-0'); Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 29Error Code Definition = Outdoor heat exchanger temperature (middle) error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 2AError Code Definition = Power supply frequency detection error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 2BError Code Definition = Compressor temperature error, Fujitsu AC Indoor Unit/Wired Remote Model Error Code = 2CError Code Definition = Four-way valve abnormal.