All Other Wireless Indoor Units AUY, ABY & AWY Models. The operation and timer lights (red and green) keep flashing 5 times at intervals of about 1 satisfied customers First of all, you need to switch of the aircon to find out the exact problem. 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 delete the item from your cart at any time. To protect your warranty contact Airpro with your Fujitsuerror code and discuss with us your options for rectifying the issue. Appliance, TV, Furniture & Mattress Store - About Us. To get rid of this sound, you may need to open the unit and clean it thoroughly from inside. Consider it a preventative alert to avoid damage to the system. Matt Peterson, President & COO, Fujitsu General America, Inc. Fujitsu Generals sustainability through innovation is helping to build trust with customers around the globe.

Heat pumps heat your home using electricity as their fuel source, and their efficiency is measured as Heating Seasonal Performance Factor (HSPF). THe green light of read more We have Fujitsu inverter wall mounted air conditioner. Copyright 2013 to 2023 RemoveandReplace.com - Appliance Repair | Learn How To Fix Your Appliances. Flexible. You should take out the manual of their air-conditioner and check the troubleshooting guide. This new light commercial Cassette indoor unit checks all the boxes. Lastly, your Fujitsu air con wont turn off due to any of these reasons: Clean the condenser and evaporator to get rid of dust. Like all other models, it also needs proper maintenance to keep cooling air for many years. Our new energy-efficient, innovative, and stylish ultra-quiet high wall unit includes industry leading features like Follow Me and Occupancy Sensor. Fujitsu AC error codes. + Choose from the menu to learn more about our dependable products. If it is, wait for the power restoration. Powerful. You should take out the manual of their air-conditioner and check the troubleshooting guide. U.S. sales only. The LEDs are flashing on my air conditioning unit, what shall I do? Try reseting the power to the aircon unit. You wont see it but youll feel really good about having it. Some models have remote controls with a display that shows the error codes or messages when the light starts blinking. Take back that unused space with a high efficient, whisper quiet, stylish Console indoor unit. Impressive efficiency ratings up to 17.4 SEER cooling and 10.5 HSPF heating. Looking for reliable cleaning service, aircon service, or disinfection service? error. 7. Quiet. Save my name, email, and website in this browser for the next time I comment. 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. Posts on this website contain references to products that we may receive compensation when a link is clicked. 2,631 satisfied customers I'm having a problem with my fujitsu aircon. Please enter a password for your user account. No, the outside fan is not spinning or making any noise. Clean Your Dishwasher Filter. posted 2018-Oct-27, 6:59 am AEST. Now that once limited use space may just become your new favorite retreat. How Do I Fix My Bathroom Vent Fan Thats Not Working? LG Refrigerator Ice Maker Problems Is Your LG Fridge Not Making Ice? The higher the HSPF, the greater the efficiency and the greater your energy savings potential.

. The #1 question asked by NEW MEMBERS. PREPARATION Instructions relating to heating (*) are applicable only to "HEAT & COOL MODEL" (Reverse Cycle). This new light commercial floor console checks all the boxes. You wont see it but youll feel really good having it. Any images or third-party logos belong to their respective copyright holder and used for informational purposes. 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? This single-zone ductless heat pump checks all the boxes. That picture is from your operating manual. Sometimes the flashing light is an indication . Need help deciding? Contact a local dealer below. If your Fujitsu aircon unit's light is blinking continuously, it is a sign of something wrong with your air-conditioner. This error message may convey the problem with your air conditioning unit. Professional Member*/Membership Committee. Also, turn the thermostat off for about 30 minutes to reset it. How to Count the Blinks of an LED Indicator 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. Fujitsu air conditioner is flashing operation, timer, and fujitsu air conditioner is flashing operation, timer, and economy lights and not operating read more Gaztech1 Technician Vocational, Technical or Tra. As reliable as Fujitsu air conditioners are, they occasionally fail. 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. Thank you! (Quick Answer! 2. In that case, you should clean the AC, especially its intake grille. No E denotes No Fault. ABC Warehouse reserves the right to limit quantities. operating timer Including Multi Systems (Not J Series or VRF). When error codes appear on your Fujitsu Air Conditioner this tells the you there is a problem. It had been working fine yesterday and this morning. ), Where Are Bosch Dishwashers Made? You can also troubleshoot an option not responding to the remote or one that blinks green, leaks, or wont turn off. Turn off the power breaker if thats not the case. Need help? Fujitsu General provides homeowners with air conditioners and heat pumps featuring the latest innovations and technologies ensuring optimal home comfort for your family and friends. Intelligent. Sometimes there are things that are not visible to an untrained eye. I have a Fujitsu ASTA12JEC model airconditioner and recently have started to have issues with it suddenly not producing cold air. Fujitsu Halcyon, air conditioner Compact wall-mounted type, Inverter 15 RLS2The problem is; Indoor unit.Operational indoor lamp, (green) Flashes 10 times, Timer indicator light, orange) flashes 1, once then goes out, while the Economy green light, flashes continually during that stage.Then it repeats the above first stage, 2 Nd stage, 10 flashes on the Operational indoor lamp, the Timer indicator light, (orange) once,(1), with the Economy, green light, flashes continually.The Wired Remote Control, in the error detection sheet, states, A1.Description,= Discharge temp. Intelligent. I had my Fujitsu cassette aircon cleaned recently and since them aircon doesnt work properly. the serviceman said that the problem lies in the control panel. Bring comfort into any space, no matter the shape. Once that happens, the air conditioner wont work after the power restoration not until you reset the breaker. Our dependable and efficient ductless air conditioners and heat pumps. Welcome to the Fujitsu General Resource Center. Fujiaire AC chiller outdoor red light flashing 6 times.Fujiaire AC model number f3mc20ca-e31n. 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. Knowing the error code definition will help you to understand the present fault. Ask Our Pros-Owner Assistance - NO DIY advice will be given. n07QlDr&M71lb4t; NCi4t; NCi,K2Y* KOy4x|. Please click on the button below to be redirected to the website. From https://www.justanswer.com/ythi\rJustAnswer Customer from San Antonio, TX: fujitsu air conditioner is flashing operation, timer, and economy lights and not operating\rPearl Wilson: Assistant: What happened just before your AC unit displayed this message?\rJustAnswer Customer from San Antonio, TX: was working fine last evening, and not today\rPearl Wilson: Assistant: How long has this been going on with your air conditioner?\rPearl Wilson: Assistant: What have you tried so far?\rJustAnswer Customer from San Antonio, TX: powered unit off with remote several time and also manual on the unit its self\rPearl Wilson: Assistant: Anything else we should know to help you best?\rJustAnswer Customer from San Antonio, TX: no\rGaztech1: HVAC Technician: Gaztech1 here, I am ready to assist you with your issue.\rGaztech1: HVAC Technician: Please disregard any automated messages or phone call offers you are going to get, they are site generated and not from me.\rJustAnswer Customer from San Antonio, TX: ok thanks\rJustAnswer Customer from San Antonio, TX: what are your thoughts?\rGaztech1: HVAC Technician: Ok I am here\rJustAnswer Customer from San Antonio, TX: what do you think is wrong with my AC unit\rGaztech1: HVAC Technician: Try a complete reset This can only be done by shutting main power Breaker to unit for no less than 10 min.\rGaztech1: HVAC Technician: Then see if probleme resolves\rJustAnswer Customer from San Antonio, TX: ok\rGaztech1: HVAC Technician: Standing by.\rJustAnswer Customer from San Antonio, TX: the reset worked, however the unit inside is making a noise and not blowing warm air yet.\rGaztech1: HVAC Technician: Normally Outdoor unit needs to warm up then indoor should start blowing stronger if all is good .\rGaztech1: HVAC Technician: if not either its to cold outdoors.\rGaztech1: HVAC Technician: or there is a issue.\rGaztech1: HVAC Technician: Whats the verdict?\rJustAnswer Customer from San Antonio, TX: still making a noise but is pushing out warm air\rGaztech1: HVAC Technician: If indoor noise persist, have unit looked at by tech.\rGaztech1: HVAC Technician: As for what you can do is check condition of outdoor unit for ice build up.\rGaztech1: HVAC Technician: and indoor fan can be inspected for mold on the blower wheel inside unit in (OFF) mode.\rJustAnswer Customer from San Antonio, TX: ok thanks for all the help!\rGaztech1: HVAC Technician: My Pleasure!\rGaztech1: HVAC Technician: If you feel I have been professional and thorough in answering your question, .\rGaztech1: HVAC Technician: Bonus are always appreciated.\rGaztech1: HVAC Technician: Best regards,\rPearl Wilson: Assistant: If you have a home improvement or appliance question and want to chat with an expert now visit justanswer.com/ythi To Initiate Test OperationSwitch Unit Off & Press Master & Fan Buttons together for 3 seconds.Press Start/Stop to Initiate. The display shows error code EE:2E, Any idea how to fix this issue? Note that passwords are case-sensitive. Go through the various steps listed in the aircon troubleshooting guide and figure out the exact problem. If these issues happen, a reset should solve it, but if it persists, consult an experienced technician. I reset the unit at the switch board and its good . If you suspect a failed compressor or refrigerant leakage, call an expert. Fujitsu Trouble Shooting Guide . 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. 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 . To Select Mode Operation 1 Press the START/STOP button. Compatible with select single and multi-zone ductless systems. Green Light Timer = Yellow Light Swing = Normal. The Fujitsu Halcyon dc inverter troubleshooting tips are more or less common. Usually, the Fujitsu Halcyon air conditioner flashes the Air Clean lamp green to indicate that the AC system needs cleaning. Required fields are marked *. Hi. That shows a fault, and the reason could be a: Check the condensate line for blockage or disconnection and fix it. But as youll note, not all problems are fixable. Go back to previous page List of questions In such cases, you will have no choice but to call a professional. Then set the thermostat to Heat Mode to enable the AC to heat. Thats also how to reset Fujitsu air conditioner. Here are the top considerations when your Fujitsu AC wont turn on: Start by confirming that the issue is not a power outage. However, not all AC issues require an expert, at least not before trying the Fujitsu air conditioner troubleshooting yourself. 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. It is recommended to get it checked thoroughly by a professional. E:EE Is DisplayedWhen E:EE is displayed switch unit off and press the temp up and temp down buttons simultaneously for 3 seconds. Also, noise may be particularly noticeable for about 2-3 minutes after starting operation (sound of coolant flowing). As mentioned above, your air conditioning unit would have come with an instruction manual. (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. The unit will start and the remote controller's operation lamp (green) will light up. They also cover the ARY60U, ARY54U Single and AOY19/24F/U Multi Systems. Please enter the name by which you would like to log-in and be known on this site. To Return to Normal OperationPress Temp Up and Temp Down Buttons together for 3 seconds. 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. Quiet operation with ratings up to 17.6 SEER. Now it is time to take a look at the remote control. Cooling Efficiency Dependent on outdoor unit pairing. We couldnt find any products that match your search. It isnt easy to live in Singapore without an air-conditioner. They also cover the ARY60U, ARY54U Single and AOY19/24F/U Multi Systems. All trademarks are the property of their respective owners. Do that before you can call a service technician or the nearest Fujitsu dealer to make a complaint. liquid temp. These pages cover the current Inverter product range. Maru. Visit Here, Fujitsu Split & Ducted Air Conditioning throughout Perth. Proudly serving our customers for over 60 years. Troubleshooting a Green Blinking Air Con Light NOTE: If you have flashing red, green, or yellow LEDs or lights on your Fujitsu AC unit, please see the Fujitsu AC PDF troubleshooting chart here. Main Office. Accessories Pumps, Cooling Towers, Evap Condensers, etc, Components Valves, Motors, Condensers, Evaporators, etc, Duct Systems Design, Installation & Practice, Piping Systems Design, Installation & Practice, Control System Design, Installation & Practice, Pro's Forum: National Electrical Code (NEC), Pro's Forum: Calculations & Electrical Theory, Pro's Forum: Electrical Business & Marketing. Some issues, however, may prevent it from blowing hot air, and they include: Check the air filter outlet port and intake grille for dirt clogging and clean/replace it. If it doesnt work, reset the AC remote. Fujitsu Aircon Light Blinking? However, if all of the above actions are still not able to help you figure out the problem with the air conditioning unit, it is best to call in a professional who has experience in dealing with air-conditioner problems. All instruction manuals usually contain a troubleshooting guide. Wall Mounted Single Systems ASY, ASYA & ASYB Includes AWYZ Nokria Models. Intelligent. Post photos, respond to polls and access other special features. And with available utility rebates, the savings start on day one. As soon as you notice one of these problems, you should either check the air-conditioner yourself or get it checked by a trained professional to ensure that your unit is serviced and cleaned thoroughly. Learn about the many benefits of a Fujitsu General mini-split heating and cooling system. Why Isnt My Washing Machine Using Fabric Softener? What Needs To Be Refrigerated And What Does Not. However, it indicates a problem with the unit and needs to be checked and serviced. Got an unused space thats in need of cooling and heating? The green light flashes for about 3-7 seconds to show how urgent the cleaning should be. The video shows how an indicator blinks on model ASTG24KMCA. You may also be able to find out these instruction manuals on the Internet with a simple search. 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. Products that have gone through these updated testing procedures will display SEER2, EER2 and HSPF2 ratings, in addition to the older SEER/EER/HSPF ratings. ~%%xKw~'ty|I.Bp 0+ Quiet. If you do not take care of the problem right at the outset, it may develop into a big issue, and you may need to replace your air conditioner. Set the thermostat on Cool Mode or replace it (thermostat) or timer if faulty. We can assist with all AC error codes. Clean the condenser, filter, outlet port, and intake grille if dirt-clogged, and open the windows and doors. 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. Count the blinks of each LED indicator and contact Fujitsu General's customer service or your local service agent. Gain access to our free AOP (Ask a Professional) Section to get real answers for your questions. 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. document.getElementById("ak_js_1").setAttribute("value",(new Date()).getTime()); This site uses Akismet to reduce spam. RC address 00. 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. There may be a sound coming from the unit. ), 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. Filter Alert Clogged up or incorrectly fitted filters can be signaled with blinking lights as well. AIRSTAGE ductless Mini-Split Systems feature a small outdoor condenser and a sleek indoor handling unit. 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. 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. Our dependable and efficient ductless heat pumps for light commercial applications. Red Light operation = On. You can also determine the type of error code via the number of light flashes on the Operation LED & the TIMER LED. However, sometimes the actual error is not displayed by the unit, and it will instead display an error code. Refer to the following tables for the description of each error code. Red Light Operation = Blinking. Count the blinks of each LED indicator and contact Fujitsu General's customer service or your local service agent. Green Light Timer = Slow Blink. However, if you cannot figure out the problem with your air-conditioner with the instruction manual, you need to get it checked by a trained professional. If this happens, the air clean indicator lamp (green) on the indoor unit will flash after some time has passed. Check The Remote Check aircon remote Zone Control buttons simultaneously for longer than 3 secs. Fix Clean the air intake grille to get rid of the dust. If the intake filter is removed during operation, a safety device will stop the operation of the plasma filter unit. On January 1, 2023, the Department of Energy (DOE) will require new testing procedures for developing efficiency ratings on all cooling products. We recommend firstly turning the isolation switch off on the air conditioner for at least 5 minutes which will hopefully reset the fault. Cost-effective. Call an expert in case of a refrigerant leak. The green light flashes for about 3-7 seconds to show how urgent the cleaning should be. APCO Supply serving the apartment maintenance industry for over 50 years. ), 4 Whirlpool Duet Washer ResetTechniques (Explained! Fujitsu is one of the brands of aircon in Singapore. Please, A unique indoor air handler capable of connecting select ductless systems with traditional ducted systems. Impressive efficiency ratings up to 25 SEER cooling and 11.3 HSPF heating. Tamar D Mechanic II + p>}#GO>rJt)\Jt)\Jt)\;( Turn that hard to heat and cool area into a comfortable space and a welcome retreat. 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. Open the windows and doors, avoid overcrowding and move the heat source away from the AC. Then turn everything on (breaker and thermostat) to complete the reset.