Mitsubishi Electric MXZ error codes
Codes
- 0403Error codeSerial communication error 1.Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defective.
- 1102Error code(1) High discharging temperature Abnormal if compressor temperature 125: thermistor (TH4) exceeds or 110: continuously for 5 minutes. Abnormal if pressure detected by high pressure sensor and converted to saturation temperature exceeds 40: during defrosting and compressor temperature 110:. thermistor (TH4) exceeds (2) Refrigerant shortage abnormality When the conditions of below detecting 1 mode 1 or 2 are satisfied (1st detection) during the compressor operation, the compressor stops and restar
- 1300Error codeLow pressure (63L operated) Abnormal if 63L is operated (under0.03MPa) during compressor operation. 63L: Low-pressure switch
- 1302Error code(1) High-pressure switch (63H) operated Abnormal if high-pressure switch 63H operated ( ) during compressor operation. w 4.15 MPa w 63H: High-pressure switch (2) High pressure (High - pressure sensor 63HS detect) When high-pressure sensor 1 detects 4.31MPa or more (or over 4.15MPa for 3 minutes) (1st detection) during the compressor operation, the compressor stops and restarts operation in 3 minutes. When the sensor detects 4.31MPa or 2 more (or over 4.15MPa for 3 minutes) again (2nd detection)
- 1520Error code(1) Too low superheat due to low discharge temperature Abnormal if discharge superheat is continuously detected -15: or less even though linear expansion valve has minimum open pulse after compressor starts operating for 10 minutes. (2) Erroneous connection of refrigerant pipes or the connecting wires Consider the stopping indoor unit abnormal if condenser/evaporator temperature thermistor (TH5 or RT12) detects -5: or below continuously for 5 minutes during a compressor’s operation in cooling mo
- 2520Error codeForced compressor stop. (Overlap malfunction of drain pump in indoor unit and linear expansion valve in branch box.) When condition of the outdoor unit is forcefully stopped, which means the drain sensor detects continuously to go under water 5 times, and also detects "[liquid pipe temperature - suction temperature] [ – 10deg" for 30 minutes continuously, the indoor unit and indoor units in same refrigerant system which operates in cooling, heating or dry mode stops abnormally. Also, the outdoor
- 4100Error codeCompressor overcurrent interruption (When compressor locked) Abnormal if overcurrent of DC bus or compressor is detected within 30 seconds after compressor starts operating.
- 4119Error code2 connector open Abnormal if both 63H and 63L connector circuits are open for 3 minutes continuously after power supply 63H: High-pressure switch 63L: Low-pressure switch
- 4210Error codeCompressor overcurrent interruption Abnormal if overcurrent DC bus or compressor is detected after compressor starts operating for 30 seconds.
- 4220Error codeTo find out the details about U9 error, Detailed Refer to "8-8. FUNCTION OF SWITCHES, codes Overvoltage error • Increase in DC bus voltage to; V model: 400V Y model: 760V 01 Undervoltage error • Instantaneous decrease in DC bus voltage to; V model: 200V Y model: 350V 02 | Detailed Input current sensor error/ codes L1-phase open error • Decrease in input current through outdoor unit to 0.1A only if operation frequency is more than or equal to 40Hz or compressor current is more than or equal to 6A. 04 Abnormal power synchronous signal • No input of power synchronous signal to power circuit board • Power synchronous signal of 44 Hz or less, or 65 Hz or 08 more is detected on power circuit board. PFC/IGBT error (Undervoltage) • When Compressor is running, 20 DC bus v
- 4230Error code2 When the detected pressure is 1MPa or less at just before of restarting, the compressor stops abnormally. In this time, <U4> is displayed. 3 For 3 minutes after the compressor stops, the unit delays to abnormal stop. Then, the outdoor unit address No. 4 For 3 minutes after starting compressor, for defrosting or for 3 minutes after recovery from defrosting, abnormality is not determined as abnormality. Abnormal temperatu
- 4250Error codeAbnormality of power module Check abnormality by driving power module in case overcurrent is detected. (UF or UP error condition)
- 4400Error codeOutdoor fan motor The outdoor fan motor is considered to be abnormal if the rotational frequency of fan motor is abnormal when detected during operation. Fan motor rotational frequency is abnormal if; • 100 rpm or below detected continuously 26: for 15 seconds at or more outside air temperature • 50 rpm or below or 1500 rpm or more detected continuously for 1 minute.
- 5104Error code1. Compressor is operating. 2. When cooling, discharge superheat is 80: or more. When heating, discharge superheat is 90 or more. : High pressure sensor is below about 2.32MPa. 2 When the conditions of detecting mode 1 and 2 are satisfied again (2nd detection) within 30 minutes since the compressor has stopped and restarts operation in 3 minutes. 3 When the conditions of detecting mode 1 and 2 are satisfied again (3rd detection) within 30 minutes since the compressor has stopped, it stops abnorm
- 5201Error code63H connector open Abnormal if 63H connector circuit is open for 3 minutes continuously after power supply 63H: High-pressure switch
- 5202Error code— 63L connector open Abnormal if 63L connector circuit is open for 3 minutes continuously after power supply 63L: Low-pressure switch
- 5300Error codeCurrent sensor error Abnormal if current sensor detects - 1.5A to 1.5A during compressor operation. (This error is ignored in case of test run mode.) Abnormal if input current exceeds 38 A or 34A continuously 10 seconds. (Current sensor on noise filter board detects input current)
- 6840Error codeIndoor - branch box/branch box - outdoor unit communication error (Signal receiving error) (Branch box/outdoor unit) (1) Abnormal if branch box/outdoor controller circuit board could not receive anything normally for 3 minutes.
- 6841Error codeIndoor - branch box/branch box - outdoor unit communication error (Transmitting error) (Branch box/outdoor unit) (1) Abnormal if “0” receiving is detected 30 times continuously though branch box/ outdoor controller circuit board has transmitted “1”. (2) Abnormal if branch box/outdoor controller circuit board could not find blank of transmission path for 3 minutes.
- 6844Error codeunit connector miswiring, excessive number of units 1. Outdoor/branch box controller circuit board can automatically check the number of connected indoor units. Abnormal if the number cannot be checked automatically due to miswiring of indoor– branch box/branch box–outdoor unit connecting wire and etc. after power is turned on for 4 minutes.
- 6845Error codeMiswiring of indoor–branch box/branch box–outdoor unit connecting wire (converse wiring or disconnection) Outdoor/branch box controller circuit board can automatically set the unit number of indoor units. Abnormal if the indoor unit number can not be set within 4 minutes after power on because of miswiring (converse wiring or disconnection) of indoor–branch box/ branch box–outdoor unit connecting wire.
- 6846Error codeStart-up time over The unit cannot finish start-up process within 4 minutes after power on.
- 7130Error codeFaulty connection of LEV For the connection of P100 indoor unit(s), the connecting wire(s) must be connected to the specified terminal block(s) in the branch box. Incorrect wiring
- E0Error code(No display): Remote controller communication error (Signal receiving error) (1) Abnormal if any signal from IC of refrigerant address “0” could not be normally received for 3 minutes. (2) Abnormal if sub remote controller could not receive any signal for 2 minutes.
- E3Error code(No display): Remote controller communication error (Transmitting error) (1) Abnormal if sub remote controller could not find blank of transmission path for 6 seconds. (2) Abnormal if remote controller could not finish transmitting 30 times continuously.
- E8Error codeIndoor - branch box/branch box - outdoor unit communication error (Signal receiving error) (Branch box/outdoor unit) (1) Abnormal if branch box/outdoor controller circuit board could not receive anything normally for 3 minutes.
- E9Error codeIndoor - branch box/branch box - outdoor unit communication error (Transmitting error) (Branch box/outdoor unit) (1) Abnormal if “0” receiving is detected 30 times continuously though branch box/ outdoor controller circuit board has transmitted “1”. (2) Abnormal if branch box/outdoor controller circuit board could not find blank of transmission path for 3 minutes.
- EAError codeunit connector miswiring, excessive number of units 1. Outdoor/branch box controller circuit board can automatically check the number of connected indoor units. Abnormal if the number cannot be checked automatically due to miswiring of indoor– branch box/branch box–outdoor unit connecting wire and etc. after power is turned on for 4 minutes.
- EBError codeMiswiring of indoor–branch box/branch box–outdoor unit connecting wire (converse wiring or disconnection) Outdoor/branch box controller circuit board can automatically set the unit number of indoor units. Abnormal if the indoor unit number can not be set within 4 minutes after power on because of miswiring (converse wiring or disconnection) of indoor–branch box/ branch box–outdoor unit connecting wire.
- ECError codeStart-up time over The unit cannot finish start-up process within 4 minutes after power on.
- EDError codeSerial communication error 1.Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defective.
- EEError codeFaulty connection of LEV For the connection of P100 indoor unit(s), the connecting wire(s) must be connected to the specified terminal block(s) in the branch box. Incorrect wiring
- EFError code(6607 6608): Non defined error code This code is displayed when non defined error code is received.
- F3Error code— 63L connector open Abnormal if 63L connector circuit is open for 3 minutes continuously after power supply 63L: Low-pressure switch
- F5Error code63H connector open Abnormal if 63H connector circuit is open for 3 minutes continuously after power supply 63H: High-pressure switch
- F9Error code2 connector open Abnormal if both 63H and 63L connector circuits are open for 3 minutes continuously after power supply 63H: High-pressure switch 63L: Low-pressure switch
- HAFIZA-10LED codeBasma sıcaklığı — Lamba: İç ünite ÇALIŞMA göstergesi üst/sol lambası: 10 kez yanıp söner (3 sn yanar, 0,5 sn aralıkla yanıp söner, 2,5 sn söner; tekrarlanır); LED 1 (dış ünite PC kartı): Yanıyor; LED 2 (dış ünite PC kartı): Yanıyor
- HAFIZA-10-2LED codeBasma sıcaklığı — Lamba: İç ünite ÇALIŞMA göstergesi üst/sol lambası: 10 kez yanıp söner (3 sn yanar, 0,5 sn aralıkla yanıp söner, 2,5 sn söner; tekrarlanır); LED 1 (dış ünite PC kartı): Yanıyor; LED 2 (dış ünite PC kartı): Yanıyor
- HAFIZA-10-3LED code[MXZ-6D] Düşük basma sıcaklığı koruması — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 10 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): Yanar; LED2 (sarı, dış ünite PC kartı): Yanar
- HAFIZA-11LED code[MXZ-2D] Akım sensörü — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 11 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): 8 kez yanıp söner, 2,5 sn söner; LED2 (sarı, dış ünite PC kartı): Yanmaz
- HAFIZA-11-2LED code[MXZ-2D] Bara gerilimi — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 11 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): 6 kez yanıp söner, 2,5 sn söner; LED2 (sarı, dış ünite PC kartı): Yanmaz
- HAFIZA-11-3Error codePC kartları arası iletişim hatası — Lamba: İç ünite ÇALIŞMA göstergesi üst/sol lambası: 11 kez yanıp söner (3 sn yanar, 0,5 sn aralıkla yanıp söner, 2,5 sn söner; tekrarlanır); LED 1 (dış ünite PC kartı): Yanıyor; LED 2 (dış ünite PC kartı): 6 kez yanıp söner
- HAFIZA-11-4LED codeAkım sensörü — Lamba: İç ünite ÇALIŞMA göstergesi üst/sol lambası: 11 kez yanıp söner (3 sn yanar, 0,5 sn aralıkla yanıp söner, 2,5 sn söner; tekrarlanır); LED 1 (dış ünite PC kartı): Yanıyor; LED 2 (dış ünite PC kartı): 7 kez yanıp söner
- HAFIZA-11-5LED code[MXZ-3D/4D/5D] Sıfır geçiş (zero cross) algılama devresi — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 11 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): 5 kez yanıp söner, 2,5 sn söner; LED2 (sarı, dış ünite PC kartı): Yanmaz
- HAFIZA-11-6LED code[MXZ-3D/4D/5D] Konvertör — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 11 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): 5 kez yanıp söner, 2,5 sn söner; LED2 (sarı, dış ünite PC kartı): Yanmaz
- HAFIZA-11-7LED code[MXZ-3D/4D/5D] Bara gerilimi (1) — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 11 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): 5 kez yanıp söner, 2,5 sn söner; LED2 (sarı, dış ünite PC kartı): Yanmaz
- HAFIZA-11-10LED code[MXZ-6D] Akım sensörü — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 11 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): Yanar; LED2 (sarı, dış ünite PC kartı): 7 kez yanıp söner, 2,5 sn söner
- HAFIZA-11-11LED code(MXZ-3C/4C/5C) Bara (bus-bar) gerilimi (2) — ※ Bu koruma durdurması art arda üç kez yapılsa bile dış ünite güç sisteminde anormallik olduğu anlamına gelmez. — Lamba: Çalışma lambası (üst veya sol) (iç ünite): 11 kez yanıp söner; LED1 (kırmızı): 6 kez yanıp söner, 2,5 sn söner (her yanış 0,5 sn); LED2 (sarı): Sönük
- HAFIZA-11-12LED code[MXZ-6D] Konvertör — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 11 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): 5 kez yanıp söner, 2,5 sn söner; LED2 (sarı, dış ünite PC kartı): Yanmaz
- HAFIZA-11-13LED code[MXZ-6D] Bara gerilimi — Lamba: Çalışma göstergesi üst veya sol lambası (iç ünite): 11 kez yanıp söner; LED1 (kırmızı, dış ünite PC kartı): 5 kez yanıp söner, 2,5 sn söner; LED2 (sarı, dış ünite PC kartı): Yanmaz