mitsubishi electric ac error code list pdf

1) Check the indoor/outdoor connecting wire. This Instruction Manual uses recycled paper. Be sure to double check the codes. Are any buttons on the remote controller of other electric appliances being pressed? ● Second and third units in triple control. PUHY-RP200 air conditioner pdf manual download. Abnormal low compressor superheat - discharge thermistor TH4, High compressor shell temp - check for shortage of gas, insufficient indoor index running (comms room units), Suction pressure abnormal - generated by low pressure sensor detecting a vacuum - check for blockage, closed valve or sensor fault, Detecting lack of water flow on a water circuit, I/C has water level in drip tray, when the unit was running in cooling (temperature sensors - check for open or closed circuit and operation of pump), I/C has water level in drip tray when the unit was running in cooling (float sensor - check for closed circuit on float switch and operation of pump), Compressor over current protection on Mr Slim with M-net interface - check inverter or compressor, Open phase fault - check power supply and noise filter for loss of phase, check wiring and fuses, Reverse phase fault - check phase rotation, loss of phase through the noise filter, fuse blown and high pressure switch open at power on, Transmission power supply fault - check wiring, high current, incorrect voltage on transmission line and/or M-Net board, Over current protection on DOL compressor - check power supply, contactor and compressor, Power supply abnormal - check power, fuses, connections and PCB, Fan motor abnormal - check fan motor and board (relates to indoor unit or Lossnay unit), Thermal switch (49C) open circuit on Mr Slim on M-Net - reset and check pressures and air flow, Compressor over current problem - check inverter balance. Explanation & Check points: These models are equipped with an auto restart function. Mitsubishi Heavy Industries Air Conditioning Error Codes – R410A Systems . -Incorrect wiring between indoor and outdoor units (incorrect polarity of S1,S2,S3). This website uses cookies to improve your experience while you navigate through the website. Try replacing the cable. 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. To get the best long-lasting performance, please read and follow this User’s Manual carefully before using your air-conditioner. FAULT CODES FOR HVAC, Refrigerators, Conditione System, Washing Machines, Coffee Machine and other Blockage, Abnormal pipe temperature - mainly caused by refrigerant leakage. If within range for at least 30 minutes and problem persists, replace Remote Controller. board or the outdoor electronic control P.C. Available in one size: PWFY-P100VM-E-BU (12.5kW heating) which is modular to allow creation of larger solutions. Mitsubishi Electric FA Global Website. Mitsubishi Air Conditioning Service Manual PDF. PROBLEM WITH AC UNIT: Freezing/Overheating of indoor unit heat exchanger – mainly caused by reduced air flow through indoor coil. CODE General-Purpose AC Servo MR-J4-_B_-RJ010 MR-J3-T10 SERVO AMPLIFIER INSTRUCTION MANUAL B HEAD OFFICE : TOKYO BLDG MARUNOUCHI TOKYO 100-8310 1CW810 MR-J4-B-RJ010 MR-J3-T10 ... To prevent electric shock, note the following WARNING Before wiring or inspection, turn off the power and wait for 15 minutes or more until the charge lamp An abnormality other than above mentioned is deteced. Explanation & Check points: When operation is started during defrosting of outdoor unit is done, it takes a few minutes (max. This air … TH2 faulty or not mounted correctly, Reverse phase on mains supply - change phases around, check for potential board problem, Component open circuit - check CH, 52C, 21S4, SV, 63H and 26C for open circuit or disconnected, Outdoor coil thermister is open or short circuit may be disconnected or outdoor board fault, 63H high pressure switch open - investigate high pressure causes, 63H switch disconnected, 51CM overcurrent relay open - compressor locked or pulling too much current - check power supply, 26C thermal switch open - check if refrigerant level low or if 26C is disconnected, Overheat protection - coil temp has exceeded 67°C - reduced airflow through condenser - check for fan motor problem or thermistor problem, Input circuit of outdoor board - replace the outdoor board, Comms fault between boards - check inverter error detail for which 2 boards, check transformer, bus voltage and inter-connecting cables, High compressor discharge temperature. Title: MR-JE-_A SERVO AMPLIFIER INSTRUCTION MANUAL Author: Mitsubishi Electric Corporation Subject: SH-030128-J Keywords: MR-JE-A Created Date: 7/27/2013 11:58:53 AM Compressor overcurrent breaking (Start-up locked). Abnormality of outdoor fan motor rotational speed. ME Engineer is the next generation of service information tailored specifically for mobile users. Symptom: When heating operation is selected, operation does not start right away. If “P3” is still indicated, replace the indoor board. Mr. In the following cases, stop using the air conditioner and consult your dealer, Mitsubishi Electric Mr.Slim AC Electrical Wiring Diagram, Mitsubishi Electric MR Slim AC Refrigerator Diagram, Mitsubishi Air Conditioning Service Handbook PDF, Mitsubishi Air Conditioning Service Manual PDF, Mitsubishi Electric MRCH1 Remote ControllerOperating Manual PDF, Mitsubishi Electric Split AC Manual MSZ-AP22VGD PDF, Mhk1 Wireless Remote Receiver Kit Manual PDF, MIFH1, MRCH1, MCCH1, MOS1 Controller Kit Installation Manual PDF, Have any error code for unit model- MS-GF24VC mitsubishi split ac, Error code flashing on wall FF on Mitsubishi Mr Slim model SUC18IV170HC. When a particular error of an air conditioner is detected, light-emitting diodes blink in a certain order, which corresponds with a particular error. 45kW Packaged Hot Water Heat Pump. ), 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. Symptom: The indoor unit which is not operating becomes warm and a sound, similar to water fl owing, is heard from the unit. When it consecutively occurs 3 times that the compressor stops for overcurrent protection or start-up failure protection witth in 1 minute after start-up. Communication error between indoor and outdoor units. Is the fan setting appropriate? Out of these, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. Symptom: The air from the indoor unit smells strange. 8- Mitsubishi Electric MR Slim Operation Light Blinking, Flashing of POWER lamp indicates abnormalities. Related manuals Manual name Manual number FR-A800 Instruction Manual (Startup) IB-0600493 FR-A800 Instruction Manual (Detailed) IB-0600503ENG FR-F800 Instruction Manual (Startup) IB-0600545 FR-F800 Instruction Manual (Detailed) IB-0600547ENG FR Configurator2 Instruction Manual IB-0600516ENG Explanation & Check points: This sound is generated by the expansion/contraction of the front panel, etc. Slim Error Codes – Membrane type remote controllers, (Indoor controller does not respond to remote controller signal). Noise interference. Technical and Service Manuals. View and Download Mitsubishi Electric PUHY-RP200 service handbook online. If “EO” is still indicated, replace the indoor controller board. Can be installed in conjunction with City Multi VRF air conditioning. Abnormality of current sensor (P.B.). Make sure Connect light on wireless receiver is flashing and you are 2+ feet away from wireless receiver. P-Series ductless systems are stylish, compact, and more attractive than traditional systems. WARNING ... [AL. Mitsubishi Heavy Industries AC Self-diagnosis Table When this air conditioner performs an emergency stop, the reason why the emergency stop occurred is displayed by the flashing of display lights. Discharge thermistor, Low pressure/temperature fault - check thermistors (TH2, TH3, TH4), gas charge, indoor fan, heat exchanger and filter, Preliminary heat exchanger gas temperature sensor fault - check thermistors 10a and 10b, Low pressure fault (63L operation) low pressure sensor sensing less than 1 bar immediately before starting, High pressure fault - check pressure in system for more than 29 bar (R407c) 38 bar (R410A). The direction of the horizontal vane cannot be adjusted with the remote controller. Code E0 Error detail Remote control transmission error (signal receiving error). Symptom: The unit starts operation by itself when the main power is turned on, but hasn’t received sign from the remote controller. Slim P-Series ductless heat pumps and air conditioners are compact yet powerful, offering unrivaled energy efficiency and design flexibility. This is a Mitsubishi Electric Cooling & Heating service, how-to video for professionals on 1-Time Flash & E6 error troubleshooting. 3) Short-circuit between 1 and ➁ of CN40 and attach CN40 to the following units. Some MITSUBISHI Forklift Truck Brochures PDF are above the page. During COOL and DRY operations, pipe or pipe connecting sections are cooled and this causes water to condense. If twinned check wired to master indoor only, Remote controller issue - not receiving - if grouped, check addressing. Also for: Fr-e720s, Fr-e740. ), E0 E3 Remote controller transmission error, E1 E2 Remote controller control board error, E9  Indoor/outdoor unit communication error (Transmitting error) (Outdoor unit), U3, U4  Open/short of outdoor unit thermistors, UF Compressor overcurrent interruption (When compressor locked), U2  Abnormal high discharging temperature/49C worked/insufficient refrigerant, U1 Ud Abnormal high pressure (63H worked)/Overheating safeguard operation, U6  Compressor overcurrent interruption/Abnormal of power module, U7 Abnormality of super heat due to low discharge temperature. Out door control system. Indoor coil thermistor. Explanation & Check points: This sound is heard when the outside air is absorbed from the drain hose by turning on the range hood or the ventilation fan, making water fl owing in the drain hose to spout out. (When the outside temperature is too low and humidity is too high, frost is formed.). Symptom: The display on the remote controller does not appear or it is dim. When water leaks or drips from the indoor unit. 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.) If information fails to be received, 3 short beeps will be heard. 10 minutes) to blow out warm air. To ensure quick delivery in an unlikely event of an outage, our spare parts are warehoused locally in Australia and are available through distributors in Sydney, Brisbane, Melbourne, Adelaide and Perth . VRF Systems can run numerous indoor units connected to one outdoor unit, making them suitablefor medium to large buildings that demand high performance with optimum efficiency. Dirty filters. Fan motor problem. 2- Mitsubishi Electric Mr Slim P Series (K) Error Codes. This heats refrigerant in the system which in turn heats water for domestic hot water and space heating. R22 refrigerant charge appears Ok (eg Pres temp corresponds enough to what should make run comp at least to start up) Compressor overcurrent breaking. To correct the watch the EU Electric Code Mitsubishi Electric, reset the air conditioner settings, set the factory default settings. Title: Microsoft Word - Dokument1 Author: Admin Created Date: 9/23/2016 10:56:00 AM But opting out of some of these cookies may affect your browsing experience. We supply not only the equipment but continued support throughout the lifecycle of all products whether that is in commercial and industrial properties or homes. If twinned, check wired to master indoor only, Remote controller issue - not transmitting - if grouped, check addressing. Your email address will not be published. MITSUBISHI MR SLIM P SERIES (A) ERROR CODE: P6. Mitsubishi Electric holds functional service parts for products up to 10-15 years old to service our long standing and new customers. Your email address will not be published. 2) Change the connection of electric wiring. - check mains supply, Low DC voltage on Vdc on fan inverter - check CNVdc for 300Vdc on diode stack and check mains power supply to outdoor unit, High temperature on heat sink on inverter - check for blockages in air duct, failure of INV fan or failure of thermistor, Fan inverter heat sink overheat protection. The unit may suck in an odor adhering to the wall, carpet, furniture, cloth, etc. When the indoor coil or the room temperature thermistor is short or open circuit. Indoor unit and outdoor unit do not operate. Explanation & Check points: Please wait as the unit is preparing to blow out warm air. In the heating operation, the defrosting operation makes ice forming on the outdoor unit melt and drip down. Compressor and inverter, Low inverter board BUS voltage. Except for when the lamp of a multi unit blinks while the unit is on standby. Advanced technology also means your Mr. When the information is successfully received, a long beep will sound from the indoor unit. Symptom: Water leaks from the outdoor unit. Indoor unit and outdoor unit do not operate. Is the polarity (+, -) of the batteries correct? Other abnonmality. Inverter IPM problem. Formed in 2018, Mitsubishi Electric (METUS) is a leading provider of ductless and VRF systems in the United States and Latin America. 1) Clear obstructions from the air cycle. Indoor drain overflow protection. Verify device temperature is within operating range. Trouble shooting for Mitsubishi Air Conditioning error codes based on the results of self-diagnostics. Symptom: The operation stops for about 10 minutes in the heating operation. Air-Conditioner. Please wait. The history of Mitsubishi began with the lease of three steamboats in 1874. The following is a list of Mitsubishi Air Conditioning error codes. Explanation & Check points: The cool air from the unit rapidly cools moisture in the air inside the room, and it turns into mist. and blow it out with the air. Can also be caused by 49C (comp inner thermostat or external Klixon ) tripping, Inverter heat sink temperature too high (TH8) - check for lack of air flow around heat sink, no silicone paste, faulty thermistor (temperature can be read from service tool (or PAR21 on power inverter model)), Compressor over current - carry out inverter output test and electrical checks to the compressor, Low discharge superheat - check TH4 reading is correct. Please read this manual thoroughly before use to ensure safe and proper use. We also offer services and support at every step of the way whether it be pre-sales design and specification, installation and maintenance support, right through to recycling. Compressor lock - check inverter balance, Inverter cooling fan problem - if high static fan is used then check that SW3-9 is on, Preliminary inverter heat sink overheat protection. Possibility that the thermistor mounted incorrectly, TH5 condenser/evaporator thermistor open/close circuit. Indoor unit and outdoor unit do not operate. If other check code appears, replace the original remote controller. Abnormality of pipe temperature thermistor/Condenser-Evaporator. Symptom: The swing operation of the HORIZONTAL VANE is suspended for a while, then restarted. With a variety of models to choose from, there’s a P-Series solution for any commercial application. Error code flashing on wall control 35 Noise interference - power down outdoor unit for 30 seconds then switch back on, Remote controller communication error - check wiring, connections and comms voltage. Required fields are marked *. -Remote controller wire short. Symptom: Weekly timer does not operate according to settings. Outdoor thermistors. Wrong cable size/spec, Start-up time over. Mitsubishi Heavy Industries Air Conditioners Technical Manual Manual Number: 2011 No. (Remote controller does not respond to indoor controller signal). 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. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Possible defective board, Phase detection circuit fault - faulty outdoor board, No input detected at outdoor unit - outdoor board defective, Two or more protection devices are open - check protection devices for disconnection or contact failure, Return air thermistor fault (TH1) - check if TH1 disconnected or open or close circuit, Liquid pipe thermistor fault (TH2) check if TH2 disconnected or open or close circuit, Drain sensor fault - DS open or close circuit, High condensate level - drain pump failure or blockage in the drain, Freezing/Overheating of indoor unit heat exchanger - mainly caused by reduced air flow through indoor coil. 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. Their advanced technology has been designed and tested to withstand the extremes of the Canadian climate in order to deliver a reliable and proven climate control system that you can trust all year round. Check LEV operations. Abnormality of power module. Slim ductless system will run more efficiently than a conventional unit, saving you from rising energy costs. *Joint research with Japan Facility Solutions, Inc. Busy hours Quiet hours ... ERROR CODE AFTER TIMER TIME SUN MON TUE WED THU FRI SAT ON OFF Hr AFTER FILTER FUNCTION ONLY1Hr. Less than 289VdcDC is detected. When the breaker is turned on, the horizontal vanes’ position will be reset in about a minute. Can be combined to max. Indoor unit and outdoor unit do not operate. Split-Systems are smaller and typically consist of oneoutdoor unit running up to eight indoor units, making themideal for small to medium sized applications such as retailunits and small offices.

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