Inverter IPM problem. 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. Symptom: The air from the indoor unit smells strange. Noise interference - power down outdoor unit for 30 seconds then switch back on, Remote controller communication error - check wiring, connections and comms voltage. Noise interference. Some MITSUBISHI Forklift Truck Brochures PDF are above the page. Mr. It may take a certain time to reach the setting temperature or may not reach that dependingon the size of the room, the ambient temperature, and the like. These cookies will be stored in your browser only with your consent. Mitsubishi Air Conditioning Service Handbook PDF. In the heating operation, water condensed on the heat exchanger drips down. Indoor unit and outdoor unit do not operate. 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. 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 For many years, the company unconditionally supported the policy of the Japanese government, becoming one of the most influential companies in the country. Symptom: Air does not blow out soon in the heating operation. OBDII Mitsubishi Code Definitions. Mitsubishi Air Conditioning Service Manual PDF. Frequency Inverter. Symptom: Water leaks from the outdoor unit. Abnormality of outdoor fan motor rotational speed. MITSUBISHI Mitsubishi Limiservo X G series TECHNICAL INFORMATION MANUAL Motor XL-G554-10(Y), XL-G554-20(Y) Control box XC-GMFY(CE) Induction type AC servo motor and control box with automatic needle positioner Thank you for purchasing this product. Even if these items are checked, when the unit does not recover from the trouble, stop using the air conditioner and consult your dealer. When the information is successfully received, a long beep will sound from the indoor unit. 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 This category only includes cookies that ensures basic functionalities and security features of the website. With a variety of models to choose from, there’s a P-Series solution for any commercial application. Is the polarity (+, -) of the batteries correct? Outdoor thermistors. (Remote controller does not respond to indoor controller signal). Explanation & Check points: A small amount of refrigerant continues to fl ow into the indoor unit even though it is not operating. 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. 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. 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