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Troubleshooting for Wall Mounted and LSP Duct Type Indoor Unit
SiSG121917E
119
Part 6 Service Diagnosis
5.3 Indoor Fan Motor or Related Abnormality
5.3.1 DC Fan Motor or Related Abnormality
Applicable
Models
CTKS25/35/50/60/71TVMG
CTKB25/35/50/60TVMG
Error Code
A6
Method of Error
Detection
The rotation speed detected by the Hall IC during fan motor operation is used to determine
abnormal fan motor operation.
Error Decision
Conditions
The detected rotation speed does not reach the demanded rotation speed of the target tap, and
is less than 50% of the maximum fan motor rotation speed.
Supposed
Causes
Remarkable decrease in power supply voltage
Layer short inside the fan motor winding
Breaking of wire inside the fan motor
Breaking of the fan motor lead wires
Defective capacitor of the fan motor
Defective indoor unit PCB
Troubleshooting
Caution
OK?
N
O
YES
YES
N
O
Be s
u
re to t
u
rn off the po
w
er s
w
itch
b
efore connecting or disconnecting
connectors, or parts may
b
e damaged.
Check the connector for
connection.
N
ote: The motor may
b
reak
w
hen the
motor connector is disconnected
w
ith the po
w
er s
u
pply on.
(T
u
rn off the po
w
er s
u
pply
b
efore
connecting the connector also.)
∗
To sec
u
re the connection,
once disconnect the connector
and then reconnect it.
Foreign matters in or
aro
u
nd the fan?
Rotate the fan
b
y hand.
Correct the connection.
Remo
v
e the foreign matters.
T
u
rn off the po
w
er s
u
pply.
(Unpl
u
g the po
w
er ca
b
le or t
u
rn
the
b
reaker off.)
A
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(R23939)
Содержание MKS-T Series
Страница 185: ...SiSG121917E Check Part 6 Service Diagnosis 180 50 65 80 class 90 class V U DC DC R22378 W R21130 W V U DCP2 DCM2...
Страница 212: ...Piping Diagrams SiSG121917E 207 Part 8 Appendix MKS65TVMG MKB65TVMG MKS80TVMG 3D103941A 3D103942A...
Страница 213: ...SiSG121917E Piping Diagrams Part 8 Appendix 208 MKS90TVMG 3D104086...
Страница 223: ...SiSG121917E Operation Limit Part 8 Appendix 218 3 Operation Limit MKS50 65 80 90TVMG MKB50 65TVMG 4D078793B...