Fujitsu AO*12LFBC, Service Instructions Manual

Page: 51 / 83

SELF-DIAGNOSIS FUNCTION
This function memorizes the self-diagnosis function (lamp display) in the in door control P.C.Board
when trouble occurs.
(The memory contents are not destroyed even when the power cord is unplugged from the AC outlet.)
The self-diagnosis function (lamp display) can also be switched between major classification display
and minor classification display and precise diagnosis can be made.
Self-diagnosis function [lamp display] (memory reading)
(1) When error occurs, it is indicated by blinking [Operation lamp (Red)] and [Timer lamp (Green)].
(2) Upon pulling out and inserting the AC plug, the starts to operates from remote control.
(At this state, a normal operation indication is performed.)
(3) By pressing [TEST] button of remote control, [Large Division Error Indication] is indicated only
during
[3 minutes ST].
(3 minutes ST : 2 minutes 20 seconds from the timing AC plug is ON)
[Lamp display]
3 minutes delay
Turn off Operating Large Div. Error Indication Normal indication after
3min.ST
Indication
AC Plug ON Start operation Input TEST signal
(4) By pressing [TEST] button of remote control while [Large Division Error Indication], it switches
to
[Small Division Error Indication].
(5) Every time [TEST] button of remote control is pressed, it switches between [Large Division Error
Indication] and [Small Division Error Indication] alternately.
How to erase Memory
(1) While [Large Division Error Indication] or [Small Division Error Indication] is ON by the
self-diagnosis function, the memorized contents can be erased by pressing [Forced Auto
Button] on the main unit.
(Indoor unit buzzer beeps 3 seconds.)
07-02