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.) Mitsubishi Air Conditioning Service Manual PDF. (When the outside temperature is too low and humidity is too high, frost is formed.). Transmit the setting information of the weekly timer to the indoor unit again. Please read this manual thoroughly before use to ensure safe and proper use. Protection from overheat operation(TH3). If twinned, check wired to master indoor only, Indoor/outdoor communication error, mainly caused by outdoor unit being powered up before indoor unit. 2) Signal transmitting/receiving circuit of remote controller is abnormal. Except for when the lamp of a multi unit blinks while the unit is on standby. Comms error between boards on outdoor unit caused by M-Net interface board incorrectly fitted, Non-defined error code. PROBLEM WITH AC UNIT: High condensate level – drain pump failure or blockage in the drain. ● Second and third units in triple control. 2- Mitsubishi Electric Mr Slim P Series (K) Error Codes. due to change in temperature. Any help appreciated! W1-01 Variable Frequency Wall Mounted Type Room Air Conditioners (Split system, heat pump type) SRK25QA-S/SRC25QA-S SRK35QA-S/SRC35QA-S (R410A Refrigerant Used) MITSUBISHI HEAVY INDUSTRIES, LTD. Abnormality of comp. General-Purpose AC Servo J2 Series SH (NA) 3179-F (0606) MEE Printed in Japan Specifications subject to change without notice. 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. Mis-Wiring or serial signal. Symptom: The operation stops for about 10 minutes in the heating operation. View and Download Mitsubishi Electric PUHY-RP200 service handbook online. When a power failure occurs and the main power turns off, the indoor unit built-in clock will be incorrect. Be sure to double check the codes. Verify device temperature is within operating range. 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. Mitsubishi Heavy Industries Air Conditioning Error Codes – R410A Systems . Mitsubishi Electric holds functional service parts for products up to 10-15 years old to service our long standing and new customers. Compressor and inverter, Low inverter board BUS voltage. Required fields are marked *. | View our. 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 Reduced airflow through heat sink. ME Engineer will provide Installers and Service Engineers of Mitsubishi Electric Air Conditioning, Heating, Ventilation and Controls products easy access to the most up to date and detailed service information direct from in-house technical experts at Mitsubishi Electric. When the rotational frequency feedback signal is not emit during the indoor fan operation. Abnormality of pipe temperature thermistor/Condenser-Evaporator. System transmission error - check for possible comms fault between I/C and R/C, could also be incorrect group or master/slave settings (check CN40, SW2 and SW6), TH1 fault - check return air thermistor (6.4K_ @ 20°C), TH2 fault - check coil/pipe thermistor (6.4K_ @20°C), Drain sensor fault - check drain sensor resistance, connection and continuity, Drain fault - unit has detected high condensate - check for blockage in drain or tray, pump failure or sensor fault, Frost protection in cooling/Overheat protection in heating - detected by indoor coil sensor - general causes are lack of air flow or refrigerant charge problem, System error - address setting fault - check CN40 SW2 and SW6. The history of Mitsubishi began with the lease of three steamboats in 1874. Normal resistance should be 82Ω. Air-Conditioner. Compressor overcurrent breaking. Frequency Inverter. indoor then outdoor, 51CM connector open - check thermal relay for disconnection or contact failure. 45kW Packaged Hot Water Heat Pump. 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. Other abnonmality. Explanation & Check points: This protects the unit according to instructions from the microprocessor. Mitsubishi Split Air Conditioner Timer Light Blinking, Mitsubishi Electric Aircon RedLINK Error Codes. Operation Led: No lit. If the resistance is normal, replace the outdoor controller board. 4) Measure the resistance of the outdoor coil thermistor. Symptom: Mist is discharged from the air outlet of the indoor unit. Indoor unit and outdoor unit do not operate. Mitsubishi Electric MRCH1 Remote ControllerOperating Manual PDF. Symptom: The airfl ow direction changes during operation. 2) Measure the resistance of the thermistor ➃ – ➄. 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. Even if these items are checked, when the unit does not recover from the trouble, stop using the air conditioner and consult your dealer. MITSUBISHI MR SLIM P SERIES (A) ERROR CODE: P5. 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. Mitsubishi Electric FA Global Website. Open/short of outdoor thermistors (TH3, TH6, TH7 and TH8). WARNING ... [AL. 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. The symptom reappears for accurate troubleshooting flow at the indoor fan operation at the indoor coil to allow of! Of Vernon Hills, IL offers a comprehensive line of factory Automation solutions 1 minute start-up... That the lower horizontal vane can not be operated for about mitsubishi electric ac error code list pdf minutes when.! Least 30 minutes and problem persists, replace the original remote controller appreciated as mum! 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