IVT 09LR-N - Page 43

12LRN
3 – 21
Malfunction indications due to erroneous wiring during air conditioner installation
Inter-unit wiring error mode Symptom
1 Malfunction diagnosis display “18-1”
2 Malfunction diagnosis display None
(Displays “18-0” when malfunction code is called out.)
3 Malfunction diagnosis display None
(Displays “18-0” when malfunction code is called out.)
4 Malfunction diagnosis display “18-1”
5 Malfunction diagnosis display “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