Mitsubishi Electric PQRY error codes
Codes
- 5203Error codeIntermediate pressure sensor fault (BC controller PS3): When a pressure sensor reading of 4.06 MPa [589 psi] or above OR 0.98Mpa[142psi] or below is detected, error codes "5201" OR "5203" will appear. The unit will continue its operation by using other sensors as a backup.
- 5301Error codeACCT sensor abnormality (Error details No.115) DCCT sensor abnormality (Error details No.118) ACCT sensor/circuit abnormality (Error details No.117) ✻ For the check code on: -1.5Arms output current's effective value 1.5Arms was detected during inverter operation. An abnormal value is detected in the DCCT detection circuit just before the INV started. An abnormal value was detected with the ACCT detection circuit just before the INV started. “ the inverter, refer to 7. Inverter and | DCCT sensor/circuit abnormality (Error details No.116) IPM open/ACCT connection abnormality (Error details No.119) ACCT misswiring abnormality (Error details No.120) ✻ For the check code on ACCT-U ←Compressor-input phase U 2. Communication/system Checking Meaning, code: An abnormal value was (1) Contact is faulty. detected with the DCCT detection circuit just before the INV started. (2) INV board fault. (3) DCCT sensor (4) Compressor IPM fault. IPM open damage or CNCT2 (1) ACCT sensor dislocation was detected just before INV started. (Sufficient current was not detected during self-diagnosis just before (2) Wire connection starting.) (3) ACCT is faulty. (4) Compressor (5) Inverter circuit Improper installation of the (1) ACCT sensor ACCT sensor was detected. in
- 5401Error codeHumidity sensor fault: A short-circuit or an open-circuit of the humidity sensor is detected during operation.
- 5701Error codeLoose float switch connector: Detection of the disconnected float switch (open-phase condition) during operation
- 6201Error codeRemote controller board fault (nonvolatile memory error): This error is detected when the data cannot be read out from the built-in nonvolatile memory on the remote controller.
- 6202Error codeRemote controller board fault (clock IC error): This error is detected when the built-in clock on the remote controller is not properly functioning.
- 6600Error codeMultiple address error Transmission from units with the same address is detected. Note: The address/attribute shown on remote controller indicates the controller which has detected error.
- 6601Error codePolarity setting error: The error detected when transmission processor cannot distinguish the polarities of the M-NET transmission line.
- 6602Error codeTransmission processor hardware error: Although "0" was surely transmitted by the transmission processor, "1" is displayed on the transmission line. The address/attribute appeared on the display on the remote controller indicates the controller where an error occurred.
- 6603Error codeTransmission circuit bus-busy abnormality 1. Collision of data transmission: Transmission can not be performed for 4~10 consecutive minutes due to collision of data transmission. 2. Data can not be transmitted on transmission line due to noise for 4~10 consecutive minutes. Note: The address/attribute shown on remote controller indicates the controller which has detected error.
- 6606Error codeCommunication error with the transmission processor Communication error between the main microcomputer on the indoor unit board and the microcomputer for transmission Note: The address/attribute appeared on the display on the remote controller indicates the controller where an error occurred. System with one heat source Code 6607 No ACK abnormality Error Error Detection source display method address M-NET reNo acunit mote conknowltroller (RC) edgement MA remote (ACK) at controller BC trans- (MA)
- 6607Error code(Continued) Error source address Heat source unit (OC) BC controller (BC) Indoor unit (IC) Fresh Master (FU): No ACK abnormality The transmission. interval, Note: Error Detection display method M-NET remote No acknowlSame controller (RC) edgement one MA remote (ACK) at BC controller (MA) transmission to OC M-NET remote No acknowlSame controller (RC) edgement one MA remote (ACK) at IC controller (MA) transmission to BC M-NET reNo acknowl- (1) mote conedgement (2) troller (RC) (ACK) at RC transmission to IC (3) (4) (5) If an once, M-NET reNo ac- (1) mote conknowltroller (RC) edgement MA remote (ACK) at IC | (Continued) Error source address Heat source unit (OC) BC controller (BC) Indoor unit (IC) Fresh Master (FU): No ACK abnormality The transmission. interval, Note: Error Detection display method M-NET reNo acSame one mote conknowltroller (RC) edgement System (ACK) at controller BC trans- (SC) mission to MA remote OC controller (MA) M-NET reNo acSame one mote conknowltroller (RC) edgement System (ACK) at IC controller transmis- (SC) sion to BC MA remote controller (MA) M-NET reNo acSame tem mote conknowltroller (RC) edgement (ACK) at RC transmission to IC System No ac1.Error (1) controller knowl- (SC) edg | (Continued) Error source address System controller (SC): No ACK abnormality The transmission. interval, Note: Error Detection display method M-NET reNo ac1.Error mote conknowltroller (RC) edgement (1) MA remote (ACK) at IC controller transmis- (2) (MA) sion to SC (3) 2.Erro
- 6608Error codeNo response When no response command is returned although acknowledgement (ACK) is received after transmission, an error is detected. When the data is transmitted 10 times in a row with 3 seconds interval, an error is detected on the transmission side. Note:The address/attribute appeared on the display on the remote controller indicates the controller where an error occurred.
- 6831Error codeMA controller signal reception error (No signal reception): Communication between the MA remote controller and the indoor unit is not done properly. No proper data has been received for 3 minutes.
- 6832Error codeMA remote controller signal transmission error (Synchronization error): MA remote controller and the indoor unit is not done properly. Failure to detect opening in the transmission path and unable to send signals Indoor unit : 3 minutes Remote controller : 6 seconds
- 6833Error codeMA remote controller signal transmission error (Hardware error): Communication between the MA remote controller and the indoor unit is not done properly. An error occurs when the transmitted data and the received data differ for 30 times in a row.
- 6834Error codeMA controller signal reception error (Start bit detection error): Communication between the MA remote controller and the indoor unit is not done properly. No proper data has been received for 2 minutes.
- 6841Error codeA control communication synchronism not recover: Indoor/heat source unit communication error (Transmitting error) (Heat source unit) Abnormal if "0" receiving is detected 30 times continuously though heat source controller circuit board has transmitted "1". Abnormal if heat source controller circuit board could not find blank of transmission path for 3 minutes.
- 6842Error codeA control communication transmission/reception hardware trouble: Indoor/heat source unit communication error (Transmitting error) Abnormal if "1" receiving is detected 30 times continuously though indoor controller board has transmitted "0".
- 6843Error codeA control communication start bit detection error: Indoor/heat source unit communication error (Signal receiving error) Abnormal if indoor controller board could not receive any signal normally for 6 minutes after turning the power on. Abnormal if indoor controller board could not receive any signal normally for 3 minutes. Consider the unit as abnormal under the following condition. When 2 or more indoor units are connected to a heat source unit, indoor controller board could not receive a signal for 3 minutes from heat source controller circ
- 6846Error codeStart-up time over: Start-up time over The unit cannot finish start-up process within 4 minutes after power on.
- 7100Error codeHeat source Total capacity error unit The model total of indoor units in the system (including Fresh Master with heating and moistening system installed) with one heat source unit exceeds limitations.
- 7101Error codeHeat source Capacity code error unit Indoor unit The model name (capacFresh Master ity code) of the connected indoor unit connected is inappropriate.
- 7102Error codeHeat source Error in the number of connected units unit The number of connected to the heat source units exceeds the allowable value.
- 7105Error codeHeat source Address setting error unit Erroneous setting of OC BC controller address Erroneous setting of BC address
- 7107Error codeBranch port setting error Branch port No. setting of unit is wrong. Total type number per each port is greater than the specification. Is there a BC controller (Sub)? NO Is single branching setting made on 4 or more indoor units? NO Is the total type number of the indoor unit, on which single branching setting is made, greater than the item 1)? When multiple branches merge, is the smallest number set on the branch port? Change the branch port No.
- 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 codeIncompatible unit combination: The check code will appear when the indoor units with different refrigerant systems are connected. 3. An indoor unit and the BC controller. compatible indoor unit or BC controller is conCheck whether the connecting adapter for nected. M-NET is not connected to the indo