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AYXP7FR
3 – 18
Malfunction indications due to erroneous wiring during air conditioner installation
Inter-unit wiring error mode Symptom
1 Indoor unit relay
Malfunction diagnosis display
Turns On momentarily, then turns Off.
"18-1"
2 Indoor unit relay
Malfunction diagnosis display
Relays turns Off after about 30 minutes.
None
(Displays "18-0" when malfunction code is called out.)
3 Indoor unit relay
Malfunction diagnosis display
Relays turns Off after about 30 minutes.
None
(Displays "18-0" when malfunction code is called out.)
4 Indoor unit relay
Malfunction diagnosis display
Turns On momentarily, then turns Off.
"18-1"
5 Indoor unit relay
Malfunction diagnosis display
Turns On momentarily, then turns Off.
"18-1"
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
Indoor
unit
Outdoor
unit
1
N
2
1
N
2
Indoor
unit
Outdoor
unit
1
N
2
1
N
2