IVT AE-X12GR-N Service Manual page 38

AEX12GRN
Inter-unit wiring error mode
2
1 1
Indoor Outdoor
N N
unit
2 2
3
1 1
Indoor Outdoor
N N
unit
2 2
4
1 1
Indoor Outdoor
N N
unit
2 2
5
1 1
Outdoor
Indoor
N N
unit
2 2
Indoor unit relay
Malfunction diagnosis display
unit
Indoor unit relay
Malfunction diagnosis display
unit
Indoor unit relay
Malfunction diagnosis display
unit
Indoor unit relay
Malfunction diagnosis display
unit
Symptom
Relays turns Off after about 30 minutes.
None
(Displays "18-0" when malfunction code is called out.)
Relays turns Off after about 30 minutes.
None
(Displays "18-0" when malfunction code is called out.)
Turns On momentarily, then turns Off.
"18-1"
Turns On momentarily, then turns Off.
"18-1"
3 – 18