Green Light Timer = Blinks. Symptom: Water leaks from the outdoor unit. Comment:*document.getElementById("comment").setAttribute( "id", "a64ed9a4d2cefb760f84f3f0d28b4e56" );document.getElementById("f6406f2a16").setAttribute( "id", "comment" ); Save my name, email, and website in this browser for the next time I comment. Room temperature thermistor. If the error disappears after 3 minutes, the unit will operate well. Any Techs out there have any idea or where to go from here. Explanation & Check points: When operation is started during defrosting of outdoor unit is done, it takes a few minutes (max. Menu. Press the increase and decrease buttons to set the time. THANK YOU to my Dad too, since he actually did the repair. Advanced technology also means your Mr. The same is true in the emergency cooling operation. Symptom: The display on the remote controller does not appear or it is dim. The direction of the horizontal vane cannot be adjusted with the remote controller. Noise interference. We are proud to offer comprehensive repairs and maintenance for Mitsubishi … Slim … These faults are shown via small red LED lights on the PC Board. The… Communication was established between wireless receiver and the indoor unit, but communication has been lost for 10 minutes. Be sure that the connector CN22 on the circuit board is not loose or damaged. Forums. Compressor and inverter, Low inverter board BUS voltage. Check the wires connecting the two units and make sure all their parts are compatible; When installing the unit, check all connections prior to powering it up. Is the polarity (+, -) of the batteries correct? The fans on the indoor units continue to run but the air changes warm. Symptom: Mist is discharged from the air outlet of the indoor unit. No comp start up tho at all. Mr. Indoor coil thermistor. this scenario is not included in the operating instructions. Ltd. an electrical & electronic equipment company offering a wide range of products and solutions for Air Conditioners, Factory Automation and Industrial Systems, Semiconductor & Devices, Transportation Systems and Visual & Imaging Communication error between indoor and outdoor units. Ensure information is successfully received. Symptom: The horizontal vane does not move. Slim MUZ-D30NA service manual online. Archive View Return to standard view. Most technicians say that it is one of the most serious issues, which should be solved ASAP. This unit is for cool only no heater function. and blow it out with the air. Not uncommonly, the head pressure occurs due to compressor motor overheating. Noise interference. The outdoor faults on your Mitsubishi Electric unit will be displayed on the Outdoor PC Board. Attempting to connect incompatible wireless devices. For the first time in 6 years were are now having problems. View and Download Mitsubishi Electric Mr. 187 208 230 Max. After completing installation and the wiring and piping of the indoor and outdoor units, check for refrigerant leakage, looseness in the power supply or control wiring, wrong polarity, and no disconnection of one phase in the supply. If the light is flashing, a fault is present. Symptom: When heating operation is selected, operation does not start right away. Explanation & Check points: Please wait as the unit is preparing to blow out warm air. In the heating operation, if the airfl ow temperature is too low or when defrosting is being done, the horizontal vane is automatically set to horizontal position. The main PCB signals an overheat and prevents compressor damage by sending out the P2 error code and stopping the system’s work. This unit is for cool only no heater function. ... Why is my Panasonic Aircon Timer Light Blinking … When the operation indicator lamp blinks. MITSUBISHI MR SLIM P SERIES (A) ERROR CODE: A3 CENTRAL CONTROLLER: 6603 PROBLEM WITH AC UNIT: Line busy no data could be transmitted for 8 minutes – check A- M-Net connections (TB7 and TB3) MITSUBISHI MR SLIM … Transmit the setting information of the weekly timer to the indoor unit again. 12.5kW Hot Water Module. Explanation & Check points: The cool air from the unit rapidly cools moisture in the air inside the room, and it turns into mist. mitsubishi mr slim troubleshooting blinking light Home; Events; Register Now; About I repaired my Mitsubishi WS-65813 by replacing the four (4) DM Module 1000uF, 16V, 85C Capacitors. The system is about 5 or 6 years old, and starting this season every once in a while the units just stop cooling. error details, Temperature sensor fault - check CN30 for humidity sensor, Loose float switch connector - check switch, check CN4F on indoor unit, TB7 transmission line communication error - check for voltage abnormality/short, Transmission processor hardware error - check for noise/short on M-Net cable, Repeat address fault - two or more units are assigned the same address - correct the repeated address, Polarity setting error - no voltage or short circuit on the m-net transmission line, Hardware error of transmission processor. We had it installed Professionally on 09/17/2014. The control system of the Mitsubishi air conditioners reports that an error occurred by blinking of a light-emitting diode on the surface of the internal (or external) unit. This website uses cookies to ensure you get the best experience Our, Samsung AC Error Codes and Troubleshooting, Hitachi AC Error Codes and Troubleshooting, Actron AC Error Codes and Troubleshooting, Duplicate address - Lossnay units attached with the same address - change addresses and reset the units power, Hardware error of transmission processor (Lossnay) - check comms wiring, and for possible Lossnay board fault, Line busy no data could be transmitted for 8 minutes - check A- M-Net connections (TB7 and TB3), Communication error with communication processor - Lossnay address not transmitted - check M-Net voltage, No ACK signal - check A- M-Net wiring, range of transmission wiring exceeded or if faulty A- M-Net converter, M-Net no response - check A- M-Net wiring, range of transmission wiring exceeded, faulty A- M-Net converter or if incorrect wire used for M-Net connection, Mis-wiring/loose inter-connecting cables. or blown out not warm wind for a moment at HEATING operation. Outdoor unit does not operate. Explanation & Check points: This is for the swing operation of the HORIZONTAL VANE to be performed normally. When the main power is turned off without stopping the unit with the remote controller and is turned on again, the unit starts operation automatically in the same mode as the one set with the remote controller just before the shutoff of the main power. Explanation & Check points: In the heating operation, vapor generated by the defrosting operation looks like white smoke. Symptom: The unit starts operation by itself when the main power is turned on, but hasn’t received sign from the remote controller. Slim ductless system will run more efficiently than a conventional unit, saving you from rising energy costs. The 5701 error appears due to a problem with the humidity sensor or temp sensor. If not, it is better to address a qualified technician anyway. When the indoor unit has started operation and the above detection method has detected an abnormality (the first detection after the power ON), the indoor electronic control P.C. Outdoor unit does not operate. With a variety of models to choose from, there’s a P-Series solution for any commercial application. Hi All, Mitsubishi MUH26SV split system aircon when turned on a green light blinks 5 times and nothing happens. Protection from overheat operation(TH3). Whirlpool. When the rotational frequency feedback signal is not emit during the indoor fan operation. 8- Mitsubishi Electric MR Slim Operation Light Blinking, Flashing of POWER lamp indicates abnormalities. mitsubishi mr slim troubleshooting blinking light Home; Events; Register Now; About Indoor unit and outdoor unit do not operate. Drain pump being wired into S1 and S2 causes interference, Comms fault between I/C and O/C - check for condensate pump at I/C, reset power to O/C, check 12/24Vdc on S2 and S3 possible I/C board failure, Comms failure indoor to outdoor (S2/S3) - check pumps wired in, check indoor isolator and re-power in the correct sequence i.e. Required fields are marked *. Slim systems from Mitsubishi Electric are the smart solution. By utilizing our advanced “Flash-injection Circuit” and the latest high-efficiency compressor, Hot Water Heat Pump provides hot water upto 70°C, and produces less capacity drop at low outdoor temperature. It runs for approximately 7 minutes then shuts off. Interesting txv Mitsubishi uses on that system. Any help appreciated! Reduced airflow through heat sink. Before taking measures, make sure that the symptom reappears for accurate troubleshooting. Noise interference. A short- and open circuit can be detected within a particular temperature range: There is a temp range, within which a short and an open are detectable: The system will not detect a sensor failure at gas-side within these temp ranges. Inscription; About; FAQ; Contact Move wireless device to a different location and try again. Please, take steps to fix the problem ASAP! Also for: Mr. slim muz-d36na, Mr. slim muy-d30na, Mr. slim … Slim mini split heat pump system with 3 indoor units on one outdoor unit. The modern air conditioners from Mitsubishi have a very developed self-diagnostics system, and when the control system detects an error, it blocks the operation of the entire device and displays a cause of faulty condition. Read more. Out door control system. indoor then outdoor, 51CM connector open - check thermal relay for disconnection or contact failure. If none of these issues are detected, call a technician and have control boards checked and replaced, if necessary. We have a 2005 Mitsubishi Mr Slim system MSZ series, with 2 indoor units linking to 1 outside unit. You could use the tables below to understand the cause of the problem. Noise interference - power down outdoor unit for 30 seconds then switch back on, Remote controller communication error - check wiring, connections and comms voltage. © 2014-2021 ACErrorCode.com. While the head pressure may drop, it may rise in the suction area, near the heat pump or compressor. This website uses cookies to improve your experience while you navigate through the website. RUN light blinks slowly (1.5 sec ON, 0.5 sec OFF) Airflow has stopped to prevent blowing out of cold air until the indoor heat exchanger has warmed up. 3- Mitsubishi Multi City VRF AC Error Codes. Are any buttons on the remote controller of other electric appliances being pressed? You also have the option to opt-out of these cookies. Check LEV operations. Would be much appreciated as single mum with little funds n hot Christmas looming. Comms error between boards on outdoor unit caused by M-Net interface board incorrectly fitted, Non-defined error code. But opting out of some of these cookies may affect your browsing experience. Abnormality of drain sensor (DS) Float switch(FS) connector open. For further help with Mitsubishi Electric air conditioning fault codes, contact the knowledgeable, friendly team at Airway Air Conditioning. 3-time flash 2.5-second OFF: Serial signal: The serial signal from outdoor unit is not received for a maximum of 6 minutes. (2 to 5 min.) Polarity problem on TB7, Bus circuit busy - check if indoor unit, Lossnay unit or anything else has been wired into TB7, instead of TB3, Communication issue - no response back from unit whilst system is operational, Communication error - loss of voltage or noise entering the transmission line, K control communication error - R22 type unit connected onto M-Net circuit comms error, K control duplicate address error - two or more R22 type units connected onto M-Net circuit with the same address, K abnormality - high pressure abnormality or low pressure abnormality, K abnormality - inner thermostat function, discharge temperature abnormality, shell thermostat function, over current protection, K abnormality - radiator plate thermostat function, K abnormality - outdoor thermistor abnormality, K abnormality - pressure sensor abnormality, indoor/outdoor communication error, K abnormality - refrigerant overcharge, abnormal voltage, abnormal CT sensor, Comms fault between I/C and R/C check connections to MA R/C and check for 12Vdc check R/C not set sub controller, MA R/C communication fault - check connections on TB15 or that the controller was removed while the I/C was powered, MA controller comms fault - check cable length no bigger than 500m, check connection and type of cable used, check R/C not set sub on field settings, MA controller comms fault check cable length no bigger than 500m, check connection and type of cable used, check R/C not set sub on field settings, MA Controller comms fault - check cable length no bigger than 500m, check connection and type of cable used, check R/C not set sub on field settings, A-Control E6/E8 fault - see Mr Slim fault code list, A-Control E7/E9 fault - see Mr Slim fault code list, A-Control EA fault - see Mr Slim fault code list, A-Control Eb fault - see Mr Slim fault code list, A-Control EC fault - see Mr Slim fault code list, Over capacity - (R2 150% index exceeded) (Y 130% index exceeded), Capacity setting error - SW2 set wrong on indoors, SW5 on YHMA outdoor, (SW3-10 on older kit), Error in number of connected units - loss of M-Net voltage (short or break), no power to BC, wrong SW5 setting on box, wrong box type, Address setting error - OC or BC addressed wrong, Attribute setting error - SW3-1 setting on a GUF, Port setting error - check if too much capacity on a single port, wiring SW2 setting, wrong SW14 setting or wrong units on a box when using multiple boxes, Remote control sensor fault - SW1 - 1 on and no controllers fitted or faulty remote controller, Function setting error - wrong SW5 setting or wrong resistors fitted on YHM-A, Model setting error - SW5 set wrong or wrong resistors in, Incompatible equipment on M-Net - check split with MAC 399 wired onto the TB5 line TB5 line, not the TB7, Drain sensor error/Float switch connector (CN4F) open, Forced compressor stop (due to water leakage abnormality), Freezing/Overheating protection operation, Communication error between indoor and outdoor units, Indoor unit control system error (memory error, etc. Fan motor problem. Explanation & Check points: Outdoor unit is in defrost. While some manuals may only call for 18 gauge wire it is always recommended to use 14 gauge 4 conductor wire (14/4) for most systems. Abnormality of pipe temperature thermistor/Condenser-Evaporator. We have a Mitsubishi MSY-GE18NA single unit Mr. Mr. Inverter type … Possible defective board, L3 phase open - check power supply, also check for open circuit protection devices, 63L open - check low pressure switch for disconnection or contact failure. Slim P-Series is the ductless solution for demanding environments that require an efficient and reliable heating or cooling system. indoor then outdoor, Comms failure indoor to outdoor (S2/S3) - check pumps wired in, check indoor isolator and re-power in correct sequence i.e. Open/short of discharge thermistor (TH4) and comp. Low signal strength. All-in-all, window units may be the easy solution, but Mr. Wrong cable size/spec, Start-up time over. If the light is flashing, a fault is present. board or the outdoor electronic control P.C. Unresponsive controls are one of the most common mini split problems. Out door power system. The CITY MULTI S series (for small applications) and Y series (for large applications) make use of a two-pipe refrigerant system, which allows for system changeover from cooling to heating, ensuring that a constant indoor climate is maintained in all zones. ), Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit), Compressor overcurrent interruption (When compressor locked), Abnormal high discharging temperature/49C operated/ insufficient refrigerant, Abnormal high pressure (63H operated)/Overheating protection operation, Compressor overcurrent interruption/Abnormal of power module, Abnormality of super heat due to low discharge temperature, Abnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit/Current sensor error, Low pressure switch failure - check connection on the board and continuity of switch, High pressure switch failure - check connection onto board and continuity of switch, Both pressure switch contacts are open at the same time - check connection onto board and continuity of switch and for a potential board failure, Mis-wiring fault between FTC and Ecodan - check S1,S2,S3 also check voltages and comms, Mis-wiring fault between FTC and Ecodan - Check S1,S2,S3 also check voltages and comms, Unit cannot finish start up process - generally caused by a comms fault, Ecodan high pressure fault - mainly caused by incorrect water flow rates - check with flow setter, Ecodan high compressor discharge temperature - mainly caused by refrigerant shortage or dirty condenser, Ecodan discharge thermistor problem - mainly caused by TH4 discharge thermistor - open/close circuit, Open or close circuit Ecodan thermistors (TH3, TH32, TH33, TH6, TH7, TH8) - open or close circuit or disconnected from main board, Inverter heat sink overheat protection (W50 and W85 models 77°C, HW140 model 95°C - reduced air flow through Ecodan - faulty fan motor, Inverter/Compressor over current - system indicates possible IPM error, Ecodan fan motor problem - mainly caused by DC fan motor being disconnected, connected or obstructed with the power on or possible main board fault, Over voltage or under voltage - mainly caused by either CN2 or CN5 loose or disconnected or decrease of mains power supply, Overheat protection TH3 ≥ 70°C or 63HS ≥ 70°C saturation temperature, Compressor over current/Compressor lock - occurs within 30 seconds of compressor start, Abnormal running current - < 1A or > 40A detected during operation - check CN5 connections, Over current detected after 30 seconds of operation - do an inverter test to determine outputs balanced, Transmitting Error PAR W21 - check refrigerant address on SW1 of Ecodan, Transmitting Error (PAR W21) - check refrigerant address on SW1 of Ecodan, Receiving Error (PAR W21) - check refrigerant address of SW1 on Ecodan, Indoor/Outdoor communication error - mainly due to Ecodan being powered up before FTC(2), Non-defined error code - noise interference - power down Ecodan for 30 seconds then switch back on, Serial communication fault between Ecodan main board and Ecodan inverter board - mainly due to loose CN2 or CN5 cable, Flow temp sensor fault - TH1 not connected, short or open circuit, Over heating at heat exchanger - lack of water flow, air in the system, flow rate incorrectly set, blockage or pump problem, No temp change at plate heat exchanger - problem with flow rate (too high) - incorrect sizing of system, TH5 Fault - TH5 not connected, short or open circuit, FTC not configured for heating only, Inlet water temp fault - TH32 is below 10°C whilst compressor is in operation - possible thermistor out of range, short of gas, incorrect sizing of radiator or problem in the water circuit (blockage, pump failure etc), Comms fault between boards - check between control board an inverter board, Comms fault between boards - check between control board an fan board, High compressor discharge temperature - discharge temp has exceeded 115°C or more - check if short of refrigerant or discharge thermistor, Low pressure fault - low pressure sensor sensing less than 1 bar immediately before starting, High pressure fault - check system pressure exceded 32.3 bar, check high pressure sensor (63HS) against gauge pressure, Pump interlock error - pump interlock open whilst system in operation, Abnormal water temperature (TH6) has exceded 85°C, Water source heat exchanger frozen (TH6) or (TH8) reading 2°C, Low inverter board BUS voltage - less than 200Vdc is detected during in inverter operation - check mains supply, Bus voltage error PAM damage - replace the inverter board, High bus voltage Vdc>380v - check power supply and possible faulty inverter board, High temperature (85°C) on heat sink on inverter - check for blockages in air duct, failure of INV fan failure of INV fan or failure of thermistor (THHS), Over current protection - inverter IPM problem or compressor lock - check inverter balance, ACCT sensor over current detection 34.5A peak or 16A rms is detected - check the compressor for failure, or possible inverter board failure, High pressure sensor fault - check the system pressure is >1 bar, check the operation of 63HS high pressure transducer, Low output current <1.5A rms whilst the inverter is in operation, Water supply cut-off (flow switch has been triggered) - check flow switch and wiring, High pressure fault - check water flow, possible high pressure sensor fault LEV fault, Compressor crank case temperature of 10°C or less for 40 minutes while compressor in operation - check for possible failure of fan motor, low pressure sensor, compressor shell thermistor, high pressure sensor, discharge thermistor (TH1 TH5), LEV or SV2, Low pressure protection low pressure below 6 bar within 30 sec of start up - possible failure of LP sensor, air inlet thermistor fault (TH4 TH8), suction temperature (TH2 TH6), LEV bypass check valve, Compressor shell bottom temperature exceeded 80°C detected whilst compressor running, Compressor shell thermistor faulty (TH3 TH6), LEV failure, Outside temperature thermistor fault - check TH9, Water inlet temperature - check TH10 main circuit, Water inlet temperature - check TH12 sub circuit, Outlet water temperature - check TH11 main circuit, Outlet water temperature - check TH12 sub circuit, Compressor shell temperature - check TH3 main circuit, Compressor shell temperature - check TH7 sub circuit, Discharge temperature - check TH1 main circuit, Discharge temperature - check TH5 sub circuit, Inlet temperature - check TH2 main circuit, Inlet temperature - check TH6 sub circuit, Air to refrigerant heat exchanger inlet temperature - check TH4 main circuit, Air to refrigerant heat exchanger inlet temperature - check TH8 sub circuit, Common return water when using multiple outdoors - check TH14, Common return water when using multiple outdoors - check TH15, High pressure sensor or high pressure fault - check 63HS sensor or 63H (hp switch), Low pressure sensor low or low pressure fault - check 63LS, Model setting error 2 - faulty Z21 resistor, Power supply frequency fault - power supply frequency is not 50Hz or 60Hz, Discharge temperature fault - 120°C detected during compressor operation - check water flow, pump, high pressure sensor fault or LEV fault, Power supply fault - check transmission power supply or if PCB faulty. You get what you pay for when it comes to innovative and reliable air conditioning, and with Mr. Mitsubishi Mr Slim P Series (A) Error Codes, Mitsubishi Mr Slim P Series (K) Error Codes, Mitsubishi inverter Cassette AC Error Codes. If the control system of an air conditioner detects more than one error, the error with the highest priority is displayed first and then all the following errors are displayed. unit does not cool, the fan runs for a few minutes & then shuts off & the left indicator lamp begins to blink & the right indicator lamp goes off. Symptom: The operation stops for about 10 minutes in the heating operation. If the continuity is ok, install a new indoor controller board. Coil Length (I) x Height (H) x Width (L) inch 31.5 x 19.5 x.05 31.5 x 19.5 x.05 Fan Motor Speed rpm 900 / 650 900 / 650 900 Output of Fan Motor W 40 40 R.L.A. 2 time flash 4 time flash RUN light keeps flashing 1 time flash Trouble of outdoor unit Over current Current cut 2 time flash 3 time flash RUN light ON 1 time flash 5 time flash TIMER light R410A models Series No. Self check table. Your email address will not be published. This happens when either a mechanical or electrical component has failed, misreading, or if the system has lost refrigerant. Is the fan or heat exchanger of the indoor unit clean? Abnormality of outdoor fan motor rotational speed. Blockage, Abnormal pipe temperature - mainly caused by refrigerant leakage. 4- Mitsubishi inverter Cassette AC Error Codes. The first "0" will be blinking. Mr.Slim MSZ-FE18NA air conditioner pdf manual download. RUN light keeps flashing 1 time flash Trouble of outdoor unit Over current Current cut 2 time flash 3 time flash RUN light ON 1 time flash 5 time flash TIMER light R410A models Series No. Symptom: The unit cannot be operated for about 3 minutes when restarted. If you have not used your unit in a while, it might only need to be cleaned. If the lights are Solid, this is not a fault and represents the units operating condition. Indoor drain overflow protection. My total out-of-pocket cost for replacing the four (4) capacitors … In some cases, the head pressure drops due to faulty leaky compressor motor valves, which won’t let the compressor pressure reach the needed level. This error code signals a low pressure fault. Check the ventilation system for blockages. Fan motor problem. Slim products also add value to your home. When the information is successfully received, a long beep will sound from the indoor unit. As a result, the weekly timer may not work normally. Here is a brief troubleshooting guide on the P2 error code: If you look it up in your manual, you will find that the main control board has detected an overheat in the compressor and the system is trying to protect it from total failure. Abnormality of current sensor (P.B.). Most likely, there has been an operational fault that has triggered a "lock out". Please change fan speed to High or Super High. The remote control signal is not received in a room where an electronic ON/ OFF type fl uorescent lamp (inverter-type fl uorescent lamp, etc.) COD BO4 controllers come with mods like rapid fire, quickscope, fast reload and more. Available in one size: PWFY-P100VM-E-BU (12.5kW heating) which is modular to allow creation of larger solutions. by | Jan 20, 2021 | Uncategorized | 0 comments | Jan 20, 2021 | Uncategorized | 0 comments This category only includes cookies that ensures basic functionalities and security features of the website. 5 69-2426—01 Exit wireless setup 4 Customize remote controller (installer setup) Press and release the CONNECT button at the wireless receiver to exit wireless setup (light should stop flashing and remain … Freezing (cooling)/overheating (heating) protection. Your email address will not be published. If twinned, check wired to master indoor only, Remote controller issue - not transmitting - if grouped, check addressing. My total out-of-pocket cost for replacing the four (4) capacitors … In some cases, the head pressure drops due to faulty leaky compressor motor valves, which won’t let the compressor pressure reach the … Slim products also add value to your home. General causes are outdoor unit tripped, problem with refrigerant charge or lack of air flow at the indoor unit. Each table refers to 4 models of Mitsubishi thermostats. After the reset has completed, the normal horizontal vanes’ operation resumes.