Each table refers to 4 models of Mitsubishi … If it does not, the unit will stop. Select a Product . 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. Mitsubishi air conditioners are the most popular in the world ones. Follow all instructions and illustrations. Any Mitsubishi air conditioner has a self-diagnosis function. MITSUBISHI MR SLIM P SERIES (A) ERROR CODE: P6. Abnormality of super heat due to low discharge temperature. Our Mitsubishi heavy industries inverter split unit is flashing its timer light,4 times first, then 6 times then a pause then 6 times again ,what is the fault, unit not turning on the compressor. Not sure what code that is as it is not on the list. Simply fill in the form below & you'll receive a call from our team to organise your service or repair within 24 hours Be sure that the outside humidity sensor and relay cable are properly connected. Title: Microsoft Word - Dokument1 Author: Admin Created Date: 9/23/2016 10:56:00 AM The metal oxide varistor is an element, which protects the system against power surges. Mitsubishi Heavy Industries Air Conditioning Error Codes – R410A Systems . The system has gotten low on refrigerant due to improper charging or a leak. The U3 code appears when there is a problem with the capacitor, unstable current or faulty varistor. 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. Please, read the manual very carefully and refer to it when installing the AC. 12,000. 26.1. The problem turned out to be just a sticky changeover valve. MITSUBISHI MR SLIM P SERIES (A) ERROR CODE: P5. 0 – common for OBD-II code 1 and 2 – manufacturer’s code 3 – reserve. This also happens to accumulation of acid and sludge contamination and consequently, blockages, which may cause the coolant to get into the compressor and ruin valves. Make Outdoor Main PCB Board is not damaged orr faulty. You could use the tables below to understand the cause of the problem. The problem needs to be solved ASAP because low head pressure leads to poor lubrication in the motor and, consequently, premature wear of motor parts and compressor damage. Mitsubishi Electric is a world-leading supplier of energy efficient equipment that will cool, heat, ventilate and control buildings. YES. If not, it is better to address a qualified technician anyway. The metal oxide varistor is an element, which protects the system against power surges. If you see it on your AC’s display, do the following: If you see a P2 fault code on your AC’s display, chances are you can fix it yourself providing that you have a little technical skill. 9-2. Make sure there is enough refrigerant in the system. Be sure that no condensate pumps are connected to the terminals of the indoor unit. ABDULJALIL ALI May 10, 2020. Compressor overcurrent interruption/Abnormal of power module. WK 24H. ¾×„¦�„ßS …şE8. 36 require base pan heater (MSZ-GE and MSZ-FE 1:1 systems) 0 20 40 60 80 100 120-13 -4 0 5 10 17 25 30 35 40 47 Outdoor Temperature Degrees FWB MXZ-C-NAHZ % Heating Capacity Standard Heat Pump 100% 93% 76% H2i MXZ HE ING CAPACITY AT LOW TEMPERATURES* 78% 60% 78% MUZ-FH Standard Heat Pump MITSUBISHI ELECTRIC / M-SERIES / SPECIFICATIONS / 5 If the error disappears after 3 minutes, the unit will operate well. I already checked all the wires between the two units were OK. voltage is OK also .Is there any relation ship with capacitor and the main board .THANK YOU The E9 error indicates poor communication between the indoor and outdoor units. PROBLEM WITH AC UNIT: Drain sensor fault – DS open or close circuit. PROBLEM WITH AC UNIT: High condensate level – drain pump failure or blockage in the drain. Formed in 2018, Mitsubishi Electric (METUS) is a leading provider of ductless and VRF systems in the United States and Latin America. Abnormality such as overvoltage or voltage … The main PCB signals an overheat and prevents compressor damage by sending out the P2 error code and stopping the system’s work. The codes are listed seperately based upon 4 cylider, six cylinder, Eclipse with or without turbo. H‰ŒTËnÛ0¼ë+ö(ÇÄÇ5i9D@uP¨’l«±É„’ëßïR¯*NÒ†m™Ú�™�ù%b¥¾c2ğuôlôQ‚GŒ What does a condenser do in an air conditioner? SG79F396H02_Cover.indd 1 2010/05/11 17:11:32 Mitsubishi u3 error code The U3 code appears when there is a problem with the capacitor, unstable current or faulty varistor. 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. Be sure that the impeller is spinning smoothly and there are no foreign objects or debris blocking it. The 5701 error appears due to a problem with the humidity sensor or temp sensor. U6. My Pioneer Mini Split 9000 BTU is beeping every ten seconds or so and showing 88 and the WiFi signal. Contamination of the indoor unit, insufficient air exchange, which is a consequence of the fact that the indoor unit is frozen. Not uncommonly, the head pressure occurs due to compressor motor overheating. Throttle position sensor (TPS) fault. The error may be caused by a number of factors and there are ways to fix the problem: The P4 error code signals a drain sensor failure. 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. 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. Refer to our Generic OBD II code list for definitions on all other Mitsubishi diagnostic trouble codes. The indoor unit should get power from the outdoor one; Mitsubisi units require alternate current. Most technicians say that it is one of the most serious issues, which should be solved ASAP. Also See for Mitsubishi Electric MSZ-A09NA. This error code signals a low pressure fault. 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. Troubleshooting for Mitsubishi air conditioners based on the results of self-diagnostics. Closing of the connecting cable and sensor due to the presence of dirt and moisture on them. If it is, take steps to replace it. Try resetting the AC: turn off the unit, disconnect it from the mains, wait for about 10 to 15 minutes, reconnect and turn it back on. Improper refrigerant metering due to a TXV (TEV) fault. 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. There may be leaks in the oil separator return line. msz-ge71va Our Classic GE71 heat pump is designed for quietness, energy saving and elegance. Code P2 - Indication of indoor unit freezing sensor. The system may continue to cool at a lower capacity with the coil temperature dropping by around ten degrees. Mitsubishi Electric were very helpful and emailed the service manuals for both the indoor and outdoor units. 21: Coolant temp sensor fault. 22: Crankshaft position (CKP) sesnor fault. The cause of frostbite is a lack of gas. endstream endobj 8 0 obj <> endobj 9 0 obj <>/ProcSet[/PDF/Text]/ExtGState<>>>/Type/Page>> endobj 10 0 obj [11 0 R] endobj 11 0 obj <>/A 32 0 R/H/N/Border[0 0 0]/Type/Annot>> endobj 12 0 obj <> endobj 13 0 obj <>stream 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. ... Trouble criterion of main parts MSZ-A09NA MSZ-A12NA MSZ-A15NA MSZ-A17NA MSZ-A24NA MSY-A15NA MSY-A17NA MSY-A24NA Part name Check method and criterion Figure Room temperature Measure the resistance with a tester. Therefore, a varistor failure can expose the wiring and other components to the destructive influence of power ups. Manuals are on Google Drive now: Indoor manual for these units: MSZ-GE22VA MSZ-GE25VA MSZ-GE33VA MSZ-GE35VA MSZ-GE35VA2 MSZ-GE42VA MSZ-GE50VA MSZ-GE50VA2 If left untreated, it will lead to serious damage and premature death of the device. Mitsubishi Electric MSZ-A09NA Service Manual 48 pages. Failing pipe temperature sensor (TH22) in the indoor unit; Failing pipe temperature sensor (TH2) in the OA processing unit. 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. 25: Barometric (BARO) pressure sensor fault. Mitsubishi Electric Advanced Inverter Technology provides high-speed cooling and heating with extra energy savings compared to non-inverter models. YES. This is not about smaller ACs or heat pumps, because they feature a capillary tube. MITSUBISHI MR SLIM P SERIES (A) ERROR CODE: P4. Low high side pressure and poor cooling capability can be signs of this wear. U9 UH. VA series (OB447) MXZ-8A140VA1 (OC316) INDOOR UNIT No. 31: Knock sensor fault. The codes are defined as to what system is affected. OB419 REVISED EDITION-A Revision:A MSZ-GA80VA- has been added. Make overload protector sensor is not faulty. The third position is the type of fault: 1 – fuel system or air supply When turned on and during operation, the microprocessor through many sensors checks the errors of the Mitsubishi Heavy air conditioner in order to stop its operation in time if the parameters are violated. Be sure they are CORRECT! 5104 xx x -Thermistor fault at indoor/outdoor unit - check fault code address (indoor fault - check SW7-3 is off) 5105 xx x -TH5 open/short circuit - check if the TH is disconnected from the board The signal is sent by an overload protector sensor, which is attached to the compressor. Incorrect connection may cause damage to the control board. In case of breakage, the Mitsubishi thermostat will show you different fault codes. Mitsubishi Corporation OBD I diagnostic trouble codes are shown here how to get the codes without any special tools. When possible we give the more commonly known OBD II component name. Around the world and in the Americas, we offer a suite of services including repair, sales, technical support, cloud-based backup, in-house and on-site training, service agreements and … Check the refrigeration system for leaks. October 20, 2015 Reply Most commonly, the head pressure at the conditioning unit or heat pump compressor motor falls due to the following factors: The 5102 error code occurs in the following cases: If the thermostat is on and when there is an open- or short circuit, the outdoor unit will restart after 3 minutes only. Be sure that the connector CN22 on the circuit board is not loose or damaged. This blinking light is actually a self-diagnosis mechanism that Mitsubishi Electric had designed that enables consumers & contractors to quickly identify a fault with its system. 32: MAP sensor faulty. Check the ventilation system for blockages. In alternate-current devices, failure to follow the polarity will not prevent the indoor unit from running, but there will be a communication failure between the two units. Failure mode recall function has been Check code Diagnosis of malfunction Cause Check points EO Signal transmitting/receiving error (Indoor controller does not respond to remote controller 23: Camshaft position (CMP) sensor fault. Wall-Mounted Heating and Cooling. The valves may go faulty due to an overcharge, poorly calibrated TXV, or other factors that cause the refrigerant stagnate at the compressor. If the continuity is ok, install a new indoor controller board. Its high capacity makes it the perfect heat pump if you are looking to heat a large room or if you live in a frosty area and need a bit more power. There are a few simple steps that you can do that will help you identify the issue. Manufacturer Specific Codes P1100 Induction Control Motor Position Sensor Fault. MSZ-FH12NA. The temperature at the compressor’s top should not exceed 212F/100° If it does, the PCB will send the error and stop the unit’s operation. MSZ-GE60VA MSZ-GE71VA MSZ-GE80VA English OPERATING INSTRUCTIONS For user • To use this unit correctly and safely, be sure to read these operating in-structions before use. The animated GIF below shows an example of this: Now, when this happens, do not fret. 12.5. 15: Idle speed control (ISC) motor position sensor fault. Please, take steps to fix the problem ASAP! 7 Day Remote controller Allowing you to program up to four settings for each day of the week, you can come home … ²ƒ‹h ßä&Ş/:395õü‡ĞmyYZ”-B f1µ†ÃÀÀ# cdÀØœvBd� �ˆ¾ 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. 24: Vehicle speed sensor (VSS) fault. If none of these issues are detected, call a technician and have control boards checked and replaced, if necessary. Diagnostic trouble codes list forMitsubishi Fuso Fighter 6M60 Engine; mitsubishi fuso fighter fault codes D E N. 5 Speed. U7. Check the thermistor ➃ – ➄ for continuity. 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. They are distinguished by decent quality, high reliability and low noise level. 21. 13,600. While the head pressure may drop, it may rise in the suction area, near the heat pump or compressor. Therefore, a varistor failure can expose the wiring and other components to the destructive influence of power ups. Piston rings in the compressor motor or on a rotary compressor and/or seals have worn out. WW WL RW SP. Check the humidity sensor’s (CN22) output voltage across 2P and 4P. In direct-current units, improper polarity will result in the indoor unit not working at all. Also, improper metering may result from installation of a too short or too large cap tube. If you have problems with your Mitsubishi heat pump, don’t rush to call for expensive master’s help – you can fix your device for free. Check polarity before running the unit. Use the Mitsubishi heat pump troubleshooting guides below. 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