Panasonic CS-MKS9NKU, CS-MKS24NKU, CS-MKS18NKU service manual Condition E12

(3-2) Condition: E12

1.Disconnect the inter-unit wiring on the indoor unit side.

2.Operate the system in TEST RUN mode. Then, five minutes later, perform the self-diagnosis.

What is the self-diagnosis result ?

Condition: E12

1.Disconnect the inter-unit wiring on the outdoor unit side.

2.Operate the system in TEST RUN mode. Then, five minutes later, perform the self-diagnosis.

What is the self-diagnosis result ?

Condition: E12

An error in the P. C. Board in the outdoor unit might be considered.

(Connection error between the P. C. Board in

the outdoor unit and J-B)

Condition: E01

An error in the P. C. Board in the indoor unit might be considered.

(Terminal board error, etc.)

Condition: E01

An error in the inter-unit wiring

might be considered.

(ex. wire breaking or connection error, etc.)

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