Installations
Domestic air conditioner
3
6
10.3.10 The communication fault between indoor and outdoor
Indoor display E7
outdoor display LED1 flash 15 times
Method of Communication is detected by checking the indoor PCB and the outdoor PCB.
Malfunction
Detection
Malfunction
■
The outdoor PCB broken leads to communication fault.
Decision
■
The indoor PCB broken leads to communication fault.
Conditions
Supposed
■
Communication wiring disconnected.
Causes
■
The indoor PCB is broken.
■
The outdoor PCB is broken.
■
The Module PCB is broken.
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or else
parts damage may be occurred.
Restart the a/c and it
becomes normally.
If starting up normally, but
malfunction occurs again after a while
The outdoor
mainboard needs
dehumidification.
The outdoor
mainboard needs
dedust.
Check whether the linking
cable between the indoor and outdoor
is well connected or whether its core
wires are well insulated or its
L/N is not reversed.
Reconnect the linking
cable or replace the
linking cable with new
one.
NO
YES
YES
NO
YES
Check the indoor mainboard
：
only indoor
charged.
Measure the voltage between 3 and 4 of IC6
on the indoor mainboard with a multimete .And
measure the voltage between CN23(C) and
CN21(L) with a multimeter .
NO
YES
(A)
Summary of Contents for SUPER MATCH AS35S2SF1FA-BC
Page 12: ...Piping diagrams Domestic air conditioner 5 Piping diagrams 10 Expansion valve Expansion valve ...
Page 43: ...Table of Contents Domestic air conditioner 40 11 Wiring diagrams 11 1 INDOOR UNIT ...
Page 44: ...Circuit diagrams Domestic air conditioner 41 11 2 Circuit Diagrams ...
Page 49: ...four 5 Removal Procedure 4 Domestic Air Conditioner 1 2 3 four Remove the casing ...
Page 53: ...Removal Procedure 8 Domestic Air Conditioner motor cover ...
Page 54: ...Removal Procedure 9 Domestic Air Conditioner ...
