6607
(A7)
No ACK error
Chart 3 of 4
●Diagnosisofdefectives
MakesuretoturnthepowerOFFbeforeconnecting/disconnectinganyconnectors,orreplacingboards.
Diagnosis Remedy
Yes
Yes
No
No
No
Yes
Yes
No
The transmission line is connected
properly.
Itisnotexceedingthetolerance.
Checkthetransmissionlinewhetherit
exceedsthetoleranceornot.
Checkwhetherthecorrectkindof
transmission line is used or not.
Correctitwithinthetolerance,thenperform
theprocedure1.
Connectthetransmissionlineproperly,
thenperformtheprocedure1.
Istheabnormalityreproduced?
Isitsetproperly?
There is no abnormality on the AC unit.
Itmightbecausedbyanexternalnoise,socheckthe
transmission line to remove the factor(s).
Settheaddressproperly,thenperformthe
procedure1.
Checktheaddressswitchonthesourceof
abnormality.
Check the transmission line for a
disconnection and looseness
(on the terminal board and connector).
TurnthepowerOFFofindoor/outdoorunit,Fresh
Master, Lossnay and remote controller simultaneously
for2minutesormore,thenturnthepowerbackON.
Procedure 1:
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