Mitsubishi Electric PUHZ error codes
Codes
- 0403Error codeSerial communication error 1.Abnormal if serial communication between outdoor controller circuit board and outdoor power circuit board is defective. 2. Abnormal if communication between outdoor controller circuit board and M-NET board is not available.
- 1102Error codeHigh discharging temperature (1) Abnormal if discharge temperature 125: thermistor (TH4) exceeds or 110: continuously for 5 minutes. Abnormal if discharge temperature thermistor (TH4) exceeds 110: or more continuously for 30 seconds after 90 seconds have passed since the defrosting operation started. (2) Abnormal if discharge superheat (Cooling: TH4 – T63HS / Heating: TH4 – T63HS) 70: exceeds continuously for 10 minutes. High comp. surface temperature Abnormal if comp. surface temperature 125:.
- 1110Error code<M-NET communication Error Code: Pipe temperature <Cooling mode> Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor start and 6 minutes after the liquid or condenser/evaporator pipe is out of cooling range. Note 1) It takes at least 9 minutes to detect. Note 2) Abnormality P8 is not detected in drying mode.
- 1300Error codeLow pressure(RP200) Abnormal if the following conditions are detected for continuously 1-3 minutes after compressor starts heating operation for 5 minutes. 1. Heating mode Detection mode1 TH7-TH3 4 and TH5-Indoor room temperature 2 Detection mode2 + TH7-TH3 2 and TH5-Indoor room temperature 4 and TH2-Indoor room temperature 4 2.Cooling mode TH6-TH7 2 and TH3-TH7 2 and Indoor room temperature - Indoor liquid pipe temperature (TH2) 5 Thermistor TH3 : Outdoor liquid pipe temperature TH5 : Indoor co | Low pressure (63L worked)(RP250) Abnormal if 63L is worked (under -0.03MPa) during compressor operation. 63L: Low-pressure switch
- 1302Error codeHigh pressure (High-pressure switch 63H worked) Abnormal if high-pressure switch 63H worked ( w ) during compressor operation. 4.15 MPa w 63H: High-pressure switch | Abnormal pressure of pressure sensor (63HS) (Only for HRP·HA2) Abnormal if pressure sensor (63HS) detects 0.1 MPa or less. Detection is inoperative for 3 minutes after compressor starting and 3 minutes after and during defrosting.
- 1504Error code(P100-140V models only) 20 Overheat protection Abnormal if outdoor pipe thermistor (TH3) 70: detects or more during compressor operation.
- 1509Error codeAbnormal pressure of pressure sensor (63HS) Abnormal if pressure sensor (63HS) detects 0.1 MPa or less. Detection is inoperative for 3 minutes after compressor starting and 3 minutes after and during defrosting.
- 1520Error codeToo low superheat due to low discharge temperature Abnormal if discharge superheat is continuously detected less than or equal to –15°C for 3 minutes even though linear expansion valve has minimum open pulse after compressor starts operating for 10 minutes. (ZRP100–140 only)
- 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 three minutes continuously after power supply. 63H: High-pressure switch 63L: Low-pressure switch <PUHZ-RP100-140VHA, RP100-140YHA only>
- 4210Error codeThermistor TH3: Outdoor liquid pipe temperature TH4: Discharge temperature TH5: Indoor cond./eva. temperature TH6: Outdoor 2-phase pipe temperature TH7: Outdoor temperature Compressor overcurrent interruption Abnormal if overcurrent DC bus or compressor is detected after compressor starts operating for 30 seconds.
- 4220Error code
- 4230Error codeSymbol TH3 Thermistor TH6 Thermistor Thermistor TH7 TH8 Thermistor <Heatsink> TH8 Internal thermistor Temperature of heatsink Abnormal if heatsink thermistor (TH8) detects temperature indicated below. ZRP35/50/60····································· 84: ZRP71··············································· 77: ZRP100V, 100Y································ 94: ZRP125/140V, 125/140Y·················· 95:
- 4250Error codeCompressor overcurrent interruption (When compressor locked) Abnormal if overcurrent of DC bus or compressor is detected within 30 seconds after compressor starts operating. Abnormality of power module Check abnormality by driving power module in case overcurrent is detected.
- 4400Error codeOutdoor fan motor Abnormal if rotational frequency of the fan motor is not detected during DC fan motor operation. Fan motor rotational frequency is abnormal if; 100 rpm or below detected continuously • for 15 seconds at 20: or more outside air temperature. 50 rpm or below or 1500 rpm or more • detected continuously for 1 minute.
- 5104Error code(Detection is inoperative for 10 minutes of compressor starting process and for 10 minutes after and during defrosting.)
- 5201Error code— 63H 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 for 3 minutes continuously ply. 63L: Low-pressure switch
- 5300Error codeCurrent sensor error or input current error Abnormal if current sensor detects −1.0A • to 1.0A during compressor operation. (This error is ignored in case of test run mode.) Abnormal of 38 A of input current is • detected, or 34 A or more of input current is detected for 10 seconds continuously (ZRP100–140V only)
- 6600Error codeerror> Meaning of error code and detection method Address duplicate definition This error is displayed when transmission from the units of same address is detected. Note) The address and attribute displayed at remote controller indicate the controller that detected abnormality.
- 6602Error codeNote) The address and attribute displayed at remote controller indicate the controller that detected abnormality. Hardware error of transmission processor Transmission processor intended to transmit “0”, but “1” appeared on transmission wire. Note) The address and attribute display at remote controller indicate the controller that detected abnormality.
- 6603Error codeBUS BUSY 1. Overtime error by signal collision damage Abnormal if transmitting signal is not possible for 8-10 minutes continuously because of collision of transmission. 2. Data could not reach transmission wire for 8-10 minutes continuously because of noise or etc. Note) The address and attribute displayed at remote controller indicate the controller that detected abnormality.
- 6606Error codeCommunication error with communication processor Defective communication between unit processor and transmission processor Note) The address and attribute display at remote controller indicate the controller that detected abnormality.
- 6607Error codeNO ACK signal 1. Transmitting side controller detects abnormal if a message was transmitted but there is no reply (ACK) that a message was received. Transmitting side detects abnormality every 30 seconds, 6 times continuously. Note: The address and attribute displayed at remote controller indicate the controller that did not reply (ACK). 2. If displayed address or attribute is outdoor unit, indoor unit detects abnormality when indoor unit transmits signal to outdoor unit and there was no reply ( | 4. If displayed address or attribute is remote controller, indoor unit detects abnormality when indoor unit transmits signal to remote controller and there was no reply (ACK). 5. If displayed address or attribute is FRESH MASTER, indoor unit detects abnormality when indoor unit transmits signal to FRESH MASTER and there was no reply (ACK). 6. If displayed address or attribute is LOSSNAY, indoor unit detects abnormality when indoor unit transmits signal to LOSSNAY and there was no reply (ACK). 7.
- 6608Error code9-5. TROUBLESHOOTING Phenomena 1. Remote controller work. 2. “PLEASE WAIT” on the remote 3. When pressing operation switch, display is appeared turned off soon.: M-NET NO RESPONSE 1 Transmitting Abnormal if a message was transmitted repeated noise and and there were reply (ACK) that message 2 Extinction was received, but response command voltage does not return. Transmitting side detects by over-range abnormality every 30 seconds, 6 times wire. continuously. • Maximum Note) The address and attribute displayed • Remote at remote controller indicate the 3 Extinction controller that did not reply (ACK). voltage by type-unmatched sion wire. Type.... With shi
- 6831Error codeAbnormal if indoor controller board can 1 not receive normally any data from remote controller board or from other indoor controller board for 3 minutes. (Error code: E4) Indoor controller board cannot receive 2 any signal from remote controller for 2 minutes. (Error code: E4) | continuous times. (Error code: E3) Abnormal if indoor controller board could 1 not find blank of transmission path. (Error code: E5) Indoor controller board receives 2 transmitted data at the same time, compares the data, and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E5)
- 6840Error codeIndoor/outdoor unit communication error (Signal receiving error) 1 Abnormal if indoor controller board could not receive any signal normally for 6 minutes after turning the power on. 2 Abnormal if indoor controller board could not receive any signal normally for 3 minutes. 3 Consider the unit as abnormal under the following condition. When 2 or more indoor units are connected to an outdoor unit, indoor controller board could not receive a signal for 3 minutes from outdoor controller circuit boar | Indoor/outdoor unit communication error (Signal receiving error) (Outdoor unit) Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes.
- 6841Error codeIndoor/outdoor unit communication error (Transmitting error) (Outdoor unit) 1 Abnormal if “0” receiving is detected 30 times continuously though outdoor controller circuit board has transmitted “1”. 2 Abnormal if outdoor controller circuit board could not find blank of transmission path for 3 minutes.
- 6842Error codeIndoor/outdoor unit communication error (Transmitting error) Abnormal if “1” receiving is detected 30 times continuously though indoor controller board has transmitted “0”.
- 6843Error codeIndoor/outdoor unit communication error (Signal receiving error) (Outdoor unit) Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes.
- 6844Error codeIndoor/outdoor unit connector mis-wiring, excessive number of units (4 units or more) 1. Abnormal if the number cannot be checked automatically due to mis-wiring of indoor/outdoor unit connecting wire and etc. after power is turned on for 4 minutes. 2. Abnormal if outdoor controller circuit board recognizes the number of connected indoor units as “4 units or more”.
- 6845Error codeAbnormal if the indoor unit number cannot be set within 4 minutes after power on because of miswiring (converse wiring or disconnection) of indoor/outdoor unit connecting wire.
- 6846Error codeStart-up time over The unit can not finish start-up process within four minutes after power on.
- 7130Error codeReverse connection of ATA/ATW communication wire Abnormal if communication wire of ATA side and FTC side are connected in reverse.
- A0Error codeerror> Meaning of error code and detection method Address duplicate definition This error is displayed when transmission from the units of same address is detected. Note) The address and attribute displayed at remote controller indicate the controller that detected abnormality.
- A2Error codeNote) The address and attribute displayed at remote controller indicate the controller that detected abnormality. Hardware error of transmission processor Transmission processor intended to transmit “0”, but “1” appeared on transmission wire. Note) The address and attribute display at remote controller indicate the controller that detected abnormality.
- A3Error codeBUS BUSY 1. Overtime error by signal collision damage Abnormal if transmitting signal is not possible for 8-10 minutes continuously because of collision of transmission. 2. Data could not reach transmission wire for 8-10 minutes continuously because of noise or etc. Note) The address and attribute displayed at remote controller indicate the controller that detected abnormality.
- A6Error codeCommunication error with communication processor Defective communication between unit processor and transmission processor Note) The address and attribute display at remote controller indicate the controller that detected abnormality.
- A7Error codeNO ACK signal 1. Transmitting side controller detects abnormal if a message was transmitted but there is no reply (ACK) that a message was received. Transmitting side detects abnormality every 30 seconds, 6 times continuously. Note: The address and attribute displayed at remote controller indicate the controller that did not reply (ACK). 2. If displayed address or attribute is outdoor unit, indoor unit detects abnormality when indoor unit transmits signal to outdoor unit and there was no reply ( | 4. If displayed address or attribute is remote controller, indoor unit detects abnormality when indoor unit transmits signal to remote controller and there was no reply (ACK). 5. If displayed address or attribute is FRESH MASTER, indoor unit detects abnormality when indoor unit transmits signal to FRESH MASTER and there was no reply (ACK). 6. If displayed address or attribute is LOSSNAY, indoor unit detects abnormality when indoor unit transmits signal to LOSSNAY and there was no reply (ACK). 7.
- A8Error code9-5. TROUBLESHOOTING Phenomena 1. Remote controller work. 2. “PLEASE WAIT” on the remote 3. When pressing operation switch, display is appeared turned off soon.: M-NET NO RESPONSE 1 Transmitting Abnormal if a message was transmitted repeated noise and and there were reply (ACK) that message 2 Extinction was received, but response command voltage does not return. Transmitting side detects by over-range abnormality every 30 seconds, 6 times wire. continuously. • Maximum Note) The address and attribute displayed • Remote at remote controller indicate the 3 Extinction controller that did not reply (ACK). voltage by type-unmatched sion wire. Type.... With shi
- E0Error codeCompressor overcurrent interruption Abnormal if overcurrent DC bus or compressor is detected after compressor starts operating for 30 seconds. Remote controller transmission error (E0)/ signal receiving error (E4) 1 Abnormal if main or sub remote controller cannot receive normally any transmission from indoor unit of refrigerant address “0” for 3 minutes. (Error code : E0) 2 Abnormal if sub remote controller could not receive any signal for 2 minutes. (Error code: E0) Abnormal if indoor controll
- E1Error codenormally from remote controller board or from other Interface/Flow temp. controller board for 3 minutes. (Error code: E4) Interface/Flow temp. controller board cannot receive any signal from remote controller for 2 minutes. (Error code: E4) Remote controller control board Abnormal if data cannot be read normally from the nonvolatile memory of the remote controller control board. (Error code: E1)
- E3Error codeRemote controller transmission error (E3)/signal receiving error (E5) 1 Abnormal if remote controller could not find blank of transmission path for 6 seconds and could not transmit. (Check code: E3) 2 When remote controller receives the transmitted data same time and compares these data. Abnormal if the data is judged to be different for 30 continuous times. (Check code: E3)
- E4Error codeRemote controller signal receiving error Abnormal if indoor controller board can 1 not receive normally any data from remote controller or from other indoor controller board for three minutes. Indoor control board cannot receive any 2 signal from remote controller for two minutes.
- E5Error codedata, and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E3) Abnormal if indoor controller board could 1 not find blank of transmission path. (Error code: E5) Indoor controller board receives 2 transmitted data at the same time, compares the data, and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E5)
- E6Error codeIndoor/outdoor unit communication error (Signal receiving error) Abnormal if indoor controller board could 1 not receive any signal normally for 6 minutes after turning the power on. Abnormal if indoor controller board could 2 not receive any signal normally for 3 minutes. 3 Consider the unit as abnormal under the following condition. When 2 or more indoor units are connected to an outdoor unit, indoor controller board could not receive a signal for 3 minutes from outdoor controller circuit boar
- E7Error codeboard to transmit signals. Indoor/outdoor unit communication error (Transmitting error) Abnormal if “1” receiving is detected 30 times continuously though indoor controller board has transmitted “0”.
- E8Error codeInterface unit/Flow temp. controller-outdoor unit communication error (Signal receiving error) (Outdoor unit) (1) Abnormal if outdoor controller circuit board could not receive anything normally for 3 minutes.
- E9Error codeInterface unit/Flow temp. controlleroutdoor unit communication error (Transmitting error) (Outdoor unit) (1) Abnormal if “0” receiving is detected 30 times continuously though outdoor controller circuit board has transmitted “1”. (2) Abnormal if outdoor controller circuit board could not find blank of transmission path for 3 minutes.
- EAError codeMiswiring of Interface unit/Flow temp. controller-outdoor unit connecting wire 1. Outdoor controller circuit board can automatically check the number of connected Interface unit/Flow temp. controller. Abnormal if the number cannot be checked automatically due to miswiring of Interface unit/Flow temp. controller-outdoor unit connecting wire and etc. after power is turned on for 4 minutes. 2. Abnormal if outdoor controller circuit board recognizes excessive number of Interface unit/Flow temp. cont