Fujitsu ASU18RLF Service Instructions Manual page 34

Check run judgment failure display
If check run cannot be performed, the following is displayed. In this case, the check
run will stop. Please check by using the cooling test run of the indoor unit.
Temperature out of range judgment
POWER ERROR
MODE
A
(2-blink)
blink
(High-speed)
Wiring / piping number difference
POWER ERROR
MODE
A
blink
(2-blink)
(High-speed)
(2-blink) blink
(High-speed)
Re-display check run results
If you wish to check the automatic wiring correction contents, by briefly pressing the
"CHECK" switch, the check run results is displayed. Please check the check run
results by referring to the result table in step (4) of "8.3. Operating procedure for check run".
If the automatic wiring correction contents has not been done, the POWER/MODE
LED will blink twice and the MONITOR LED will turn off.
Automatic wiring correction memory reset
CAUTION
When relocating the unit, reset the memory beforehand, or the unit may not function
normally.
(1) Press the "CHECK" switch.
The LED will light as shown in "8.5 Re-display check run results".
(2) Press the "CHECK" switch for more than 3 seconds when the LED is on.
(3) The LEDs from A to F will light in sequence, and then all LEDs will light to indicate
the completion of the Automatic wiring correction memory reset.
(4) Disconnect the power supply or turn off the breaker.
MONITOR
B C D E F
MONITOR
B C D E F
OR
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