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If the unit operates normally
before malfunction
Check built-in wiring
of indoor and outdoor
unit
If the wiring is
damaged?
Replace the
wire
Check the malfunction
type with communication
malfunction detector
Malfunction of outdoor
communication circuit
Replace outdoor
mainboard AP1
Replace indoor
mainboard AP2
Is the malfunction
eliminated?
Is the malfunction
eliminated?
End
Check the connection
wire according to the
wiring diagram.
Reconnect the wire or
replace the connection
wire according to the
wiring diagram.
Is the malfunction
eliminated?
If the connection wire
is connected well?
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
Summary of Contents for ASH-13AIA PT
Page 1: ...SERVICE MANUAL ASH 13AIA PT ASH 18AIA PT ARCTIC SERIE ...
Page 4: ......
Page 13: ...ASH 13AIA PT ASH 18AIA PT ...
Page 80: ......
Page 87: ......
Page 103: ...PARTS GUIDE MATRIX SERIE ASH 09AIM PT ASH 13AIM PT ...
Page 104: ......
Page 105: ...ASH 09AIA INDOOR ...
Page 107: ...ASH 09AIA OUTDOOR ...
Page 109: ...ASH 13AIA INDOOR ...
Page 111: ...ASH 13AIA OUTDOOR ...
Page 113: ...ASH 18AIA INDOOR ...
Page 115: ...ASH 18AIA OUTDOOR ...