Toshiba RAV-SP804ATZ-E, RAV-SP804ATZG-E L20 error, L30 error, P30 error Central controller

[L20 error]

Are wiring connections	NO
to communication lines
U3 and U4 normal?
YES
	YES
Is not the multiple same central
control system addresses connected?
NO
Check central controller
(including network adapter) and
indoor P.C. board (MCC-1570).
Defect → Replace

[L30 error]

Are outside devices of	NO
connector CN80 connected?
YES
	NO
Do outside devices normally work?
YES
Check cause of operation.

Correct wiring connection.

Correct central control system address.

Check indoor P.C. board (MCC-1570).

Defect → Replace

Check outside devices.

Defect → Replace

[P30 error] (Central controller)

Is group operation carried out?

YES

Is there check code

on sub remote controller in main

and sub remote controllers?

YES

Check corresponding

indoor unit/outdoor unit.

NO

NO

Check indoor P.C. board (MCC-1570).

Defect → Replace

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