Mitsubishi Electric CITY MULTI PUMY-SP140YKM User Manual

49
OCH668B
8-1-2. Countermeasures for Error During Test Run
•Ifaproblemoccursduringtestrun,acodenumberwillappearontheremotecontroller(orLEDontheoutdoorunit),andthe
airconditioningsystemwillautomaticallyceaseoperating.
Determinethenatureoftheabnormalityandapplycorrectivemeasures.
1 2 3 4 5 6 7 8
[Example]
When the compressor and
SV1 are turned during cooling
operation.
Bit
Indication
1
Compressor
operated
2
52C
3
21S4
4
SV1
5
(SV2)
6
—
7
—
8
Always lit
• Self-diagnosis function
The indoor and outdoor units can be diagnosed automatically using the self-diagnosis switch
(SW1) and LED1, LED2 (LED indication) found on the multi-controller of the outdoor unit.
LED indication : Set all contacts of SW1 to OFF.
• During normal operation
The LED indicates the drive state of the controller in the outdoor unit.
Check
code
(2 digits)
Check
code
(4 digits)
Trouble
Detected Unit
Remarks
Indoor Outdoor
Remote
Controller
Ed 0403 Serial communication error
Outdoor unit outdoor multi controller circuit board
–Powercircuitboardcommunicationtrouble
U2 1102 Compressortemperaturetrouble
Check delay code 1202
UE 1302 Highpressuretrouble
Check delay code 1402
U7 1500 Superheatduetolowdischargetemperaturetrouble
Check delay code 1600
U2 1501
Refrigerant shortage trouble
Check delay code 1601
Closed valve in cooling mode
Check delay code 1501
P6 1503 Freezeprotectionofbranchboxorindoorunit
EF 1508 4-wayvalvetroubleinheatingmode Check delay code 1608
L6 2135 Circulationwaterfreezeprotection
PA 2500 Waterleakage
P5 2502 Drainoverowprotection
P4 2503 Drain sensor abnormality
UF 4100 Compressorcurrentinterruption(lockedcompressor) Check delay code 4350
Pb 4114 Fan trouble (Indoor unit)
UP 4210 Compressorovercurrentinterruption
U9 4220
Voltageshortage/overvoltage/PAMerror/L1openphase/primary
currentsensorerror/powersynchronizationsignalerror
Check delay code 4320
U5 4230 Heatsinktemperaturetrouble
Check delay code 4330
U6 4250 PowermoduletroubleorOvercurrenttrouble
Check delay code 4350
U8 4400 Fan trouble (Outdoor unit)
Check delay code 4500
U3 5101
Airinletthermistor(TH21)open/short
Compressortemperaturethermistor(TH4)open/short Check delay code 1202
U4 5102
Liquidpipetemperaturethermistor(TH22)open/short
Suctionpipetemperaturethermistor(TH6)open/short Check delay code 1211
U4 5103 Gaspipetemperaturethermistor(TH23)open/short
U4 5105 Outdoorliquidpipetemperaturethermistor(TH3)open/short Check delay code 1205
U4 5106 Ambienttemperaturethermistor(TH7)open/short
Check delay code 1221
U4 5109 HICpipetemperaturethermistor(TH2)open/short
Check delay code 1222
U4 5110 Heatsinktemperaturethermistor(TH8)open/short
Check delay code 1214
F5 5201 Highpressuresensor(63HS)trouble
Check delay code 1402
F3 5202 Lowpressuresensor(63LS)trouble
Check delay code 1400
UH 5300 Primary current error
Check delay code 4310
P4 5701 Contactfailureofdrainoatswitch
A0 6600 Duplexaddresserror Only M-NET Remote controller is detected.
A2 6602 Transmissionprocessorhardwareerror
Only M-NET Remote controller is detected.
A3 6603 Transmission bus BUSY error
Only M-NET Remote controller is detected.
A6 6606 Signalcommunicationerrorwithtransmissionprocessor
Only M-NET Remote controller is detected.
A7 6607 No ACK error
Only M-NET Remote controller is detected.
A8 6608 Noresponseframeerror
Only M-NET Remote controller is detected.
E0/E4 6831 MA communication receive error
Only MA Remote controller is detected.
E3/E5 6832 MA communication send error
Only MA Remote controller is detected.
E3/E5 6833 MA communication send error
Only MA Remote controller is detected.
E0/E4 6834
MA communication receive error Only MA Remote controller is detected.
EF 7100 Totalcapacityerror
EF 7101 Capacitycodeerror
EF 7102 Connectingexcessivenumberofunitsandbranchboxes
EF 7105
Address setting error
EF 7130
Incompatibleunitcombination
Notes:
1. When the outdoor unit detects No ACK error/No response error, an object indoor unit is treated as a stop, and not assumed to be abnormal.
2. The check codes displayed on the units may be different between the error source and others. In that case, please refer to the check code
of error source by displayed attribute and address.
3. Refer to the service manual of indoor unit or remote controller for the detail of error detected in indoor unit or remote controller.

Mitsubishi Electric CITY MULTI PUMY-SP140YKM Specifications

General

Brand	Mitsubishi Electric
Model	CITY MULTI PUMY-SP140YKM
Category	Air Conditioner
Language	English