Service manual

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1. When all rooms are not cooled
Yes
Yes
Yes
No
No
No
How to distinguish the defective parts
Are the timer lamps of the in- door units in all rooms flashing ?
Is the compressor of the outdoor unit operating ?
Are the timer lamps of the indoor
units in all rooms flashing ?
Check the failure symptom with the failure diagnosis mode.
The cooling cycle is abnormal.
Check the pressure.
Check that the power between the terminal board " N " and " L " of the indoor unit is AC 230V, 50Hz.
Repair the wiring between the units.
Press the OPERATION button to start operating the air-condi- tioner. (One-room operation ON)
(Set the cooling mode to 18
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(Check the failure with the outdoor unit.)
TO
A