Mitsubishi Electric PUY error codes
Codes
- 6832Error codeMA Communication synchronization error: MA remote controller and bit error indoor unit is not done properly. 2. No proper data has been received for 2 minutes. 1. Communication between
- 6833Error codeMA Communication transmission /reception hardware: MA remote controller and indoor unit is not done recovery properly. 2. When transmission is impossible because the emptiness of the transfer cannot be checked. Indoor unit : 3 minutes Remote controller : 6 seconds 1. Communication between MA remote controller and indoor unit is not done properly. error 2. When the transmitted data received at the same time compared, the different state continues 30 times.
- 6834Error codeMA Communication start: reception indoor unit is not done properly. 2. No proper data has been received for 3 minutes. 1. Communication between
- 6840Error codeIndoor/outdoor unit communication error (Signal receiving error) (Outdoor unit) (1) 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
- 6844Error codeIndoor/outdoor unit connector miswiring, excessive number of units (4 units or more) 1. Abnormal if the number cannot be checked automatically due to miswiring 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 cannot finish start-up process within 4 minutes after power on.
- 7100Error codeTotal capacity abnormality Total capacity of indoor units in the same refrigerant system exceeds limitations. Trouble source : Outdoor unit
- 7101Error codeCapacity code abnormality Error display at erroneous connection of Indoor unit of which model name can not be connected. Trouble source : Outdoor unit Indoor unit
- 7102Error codeError in the number of connected units Number of units connected in the same refrigerant system exceeds limitations. Trouble source: Outdoor unit
- 7105Error codeAddress setting abnormality • Erroneous setting of OC unit address Trouble source: Outdoor unit
- 7110Error codeConnection number setting abnormality
- 7111Error codeRemote control sensor abnormality Error not providing the temperature designed to remote controller sensor. Trouble source : Indoor unit
- 7113Error codeFunctional restriction error
- 7116Error codeSystem error before flashing operation The refrigerant pipe has not been washed.
- 7117Error codeUnset model error
- 7130Error codeDifferent unit model error The check code will appear when the indoor units with different refrigerant systems are connected. of MA remote controller Phenomena if the operation SW on (1) The remote controller is on. 1 the display remains The and the unit does not OFF. 2 running. The controller 3 indicator does not The on the screen.) controller 4 Transformer disconnected unit (2) The controller 1 remote disconnected block. 2 MA 3 for 4 The controller incorrectly for 5 the controller wire 6 indoo
- 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 codeHardware 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. Over error by collision damage Abnormal if transmitting 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 massage 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 is indicate the controller that did not reply (ACK). 2. If displayed address or attribute is remote controller, Indoor unit detects abnormality when indoor unit transmitted 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 transmitted to FRESH MASTER and there was no reply (ACK). 6. If displayed address or attribute is LOSSNAY, Indoor unit detects abnormality when indoor unit transmitted to LOSSNAY and there was no reply (ACK). 7. If displayed a
- A8Error code11-5. 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 Abnormal if a message was transmitted and there were reply (ACK) that message was received, but response command 2 does not return. 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). 3 4 BY INFERIOR display does not 1DC12V is not supplied (Power supply display 2DC12~15V is supplied no display is indicated. • “PLEASE WAIT” is • “PLEASE WAI
- E0Error codeRemote controller transmission error(E0)/signal receiving error(E4) Abnormal if main or sub remote con1 troller cannot receive normally any transmission from indoor unit of refrigerant address “0” for 3 minutes. (Error code : E0) Abnormal if sub-remote controller could 2 not receive for any signal for 2 minutes. (Error code: E0) Abnormal if indoor controller board can 1 not receive any data normally from
- E1Error codeAbnormality of remote controller control board Abnormal if data cannot be normally 1 read from the nonvolatile memory of the remote controller control board. (Error code: E1)
- E3Error codeerror(E3)/signal receiving error(E5) Abnormal if remote controller could not 1 find blank of transmission path for 6 seconds and could not transmit. (Error code: E3) Remote controller receives transmitted 2 data at the same time, compares the data, and when detecting it, judges different data to be abnormal 30
- E4Error coderemote 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)
- E5Error codecontinuous times. (Error code: E3) Abnormal if indoor controller board could 1 not find blank of transmission path. (Error code: E5) Indoor controller board receives trans2 mitted data at the same time, compares the data,and when detecting it, judges different data to be abnormal 30 continuous times. (Error code: E5)
- E8Error codeIndoor/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 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
- EAError codeIndoor/outdoor unit connector miswiring, excessive number of units (4 units or more) 1. Abnormal if the number cannot be checked automatically due to miswiring 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”.
- EBError 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.
- 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. 2. Abnormal if communication between outdoor controller circuit board and M-NET board is not available.
- EFError code(6607 6608): path for 3 minutes. 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 <A42N only>
- 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 <A42N only>
- P8Error code<M-NET communication Error Code: Abnormality of 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 min. to detect. Note 2) Abnormality P8 is not detected in drying mode.
- U1Error codew 4.15 MPa [602PSIG] w 63H: High-pressure switch
- U2Error codeAbnormal high discharging temperature (1) Abnormal if discharge temperature thermistor (TH4) exceeds 125: [257˚F] or 110: [230˚F] continuously for 5 minutes. Abnormal if condenser/evaporator temperature thermistor (TH5) exceeds 40: [104˚F] during defrosting and discharge temperature thermistor (TH4) exceeds 110: [230˚F]. (2) [°F]Abnormal if discharge superheat (Cooling: TH4 – TH5 / Heating: TH4 – TH6) increases. All the conditions in A or B are detected simultaneously for 10 minutes continuously
- U3Error code(Detection is inoperative for 10 minutes of compressor starting process and for 10 minutes after and during defrosting.)
- U4Error codeWCheck which unit has abnormality in its thermistor by switching the mode of SW2. (PAC-SK52ST) (Refer to 11-10.) Thermistors Symbol Name Thermistor <Outdoor TH3 Thermistor <Outdoor 2-phase TH6 TH7 Thermistor <Outd
- U5Error codeAbnormal temperature of heatsink Abnormal if heat sink thermistor(TH8) detects temperature indicated below. A12, 18, 42N··············84:, 183˚F A24, 30, 36N··············81:, 177˚F
- U6Error codeAbnormality of power module Check abnormality by driving power module in case overcurrent is detected. (UF or UP error condition)
- U8Error codeAbnormality in the outdoor 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 for 15 seconds at 20: [68˚F] or more outside air temperature • 50 rpm or below or 1500 rpm or more detected continuously for 1 minute. <A12, 18, 42N only>
- U9Error codeAbnormality such as overvoltage or voltage shortage and abnormal synchronous signal to main circuit Abnormal if any of followings are detected during compressor operation; • Abnor
- UFError codeCompressor overcurrent interruption (When compressor locked) Abnormal if overcurrent of DC bus or compressor is detected within 30 seconds after compressor starts operating.
- UHError 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.) This error is ignored in case of test run w mode. • It’s abnormal for 38A the input current or 10 seconds continuous 34A or more.