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Fujitsu ASU18RLF Service Manual

Fujitsu ASU18RLF
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Trouble shooting 4
Communication Error Between
Controller And Outdoor Unit
Outdoor unit Main PCB
Home Controller
When the home controller cannot 60sec receive the signal from
Detective Actuators:
Detective details:
Indicate of Display:
OUTDOOR UNIT Error Method:
02-08
Test 2 : Check Home Controller and Main PCB
Test 1 : Check the connection of terminal
OKOK
1. Connection failure 2. Home Controller failure 3. Main PCB failure
Check & correct the followings.
Check the connection of terminal between Wired Remote Controller and indoor unit,
and check if there is a disconnection of the cable.
>> If it is DC12V, Home Controller is failure. (Main PCB is normal) >> Replace Home Controller
>> If it is DC 0V, Main PCB is failure. (Check Home Controller once again) >> Replace Main PCB
(SERVICE PARTS INFORMATION 10)
Check Voltage at terminal 1-3 (CN93) of Main PCB.
(Power supply to Remote Control)
Forecast of Cause:
Indoor Unit
Outdoor Unit
Operation lamp : - time Flash
ERROR CODE : [E : --]
Timer lamp: - time Flash
Monitor
ABCDEF
1
: Light ON : Light OFF n : n time blinking
6

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Fujitsu ASU18RLF Specifications

General IconGeneral
BrandFujitsu
ModelASU18RLF
CategoryAir Conditioner
LanguageEnglish

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