Mitsubishi Electric CITY MULTI PUMY-SP140YKM User Manual

Check code
Abnormal points and detection methods Causes and checkpoints
Abnormalifthedataofunit/transmissionprocessorwerenotnormally
transmitted.
Abnormaliftheaddresstransmissionfromtheunitprocessorwasnot
normally transmitted.
Accidental disturbance such as noise or lightning
surge
Hardwaremalfunctionoftransmissionprocessor
●Diagnosisofdefectives
MakesuretoturnthepowerOFFbeforeconnecting/disconnectinganyconnectors,orreplacingboards.
Diagnosis Remedy
6606
(A6)
Signalcommunicationerrorwithtransmissionprocessor
Yes
No
Doesitoperatenormally?
Replacethecontroller.
(Defect of error source controller).
There is no abnormality on the AC unit.
Itmightbecausedbyanexternalnoise,socheck
the transmission line to remove the factor(s).
TurnthepowerOFFofindoor/outdoorunit,Fresh
Master, Lossnay and remote controller simultaneously
for2minutesormore,thenturnthepowerbackON.
85
OCH668B

Mitsubishi Electric CITY MULTI PUMY-SP140YKM Specifications

General

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