How To Use The Checker On Pcb - Daikin GYEQ20AN Service Manual

Troubleshooting the Outdoor Unit
1.2

How to Use the Checker on PCB

Fig. 4.1/ Checker on PCB
Caution • Wipe soil, oil and water from your hands before operating pushbuttons and switches on the
• Be sure to operate pushbuttons with your hands, not with a ballpoint pen or other tools.
Caution [Sleep mode of the Checker on PCB]
The operation of the Checker on PCB may not be possible as sleep mode activates 10 minutes
after power activation or previous operation.
If operation is not possible (due to sleep mode), press "SW2 checker wiring change" once to
release the sleep mode and enable operation.
(Note if SW2 is held down, the wiring change operation is activated.)
1.2.1 Initial Display after the Outdoor Unit has been Powered ON
Fig. 4.2/ Flow of hour meter display after power ON
113
RUN
STOP
PCB. Oil and water may cause electric shocks or the PCB to malfunction.
Failure to do so will cause the PCB to malfunction.
Normal display
SW6
BACK
CH DATA
[h]
SW2
Checker
Wiring
change
Initialize Process
Power on the
outdoor unit breaker
Flash for 2 seconds
Text scroll display
SYSTEM LOADING PLEASE WAIT
Initializing is complete
(After approx. 10 seconds)
Model name is
displayed for
5 seconds
Main CPU software
version is displayed
for 5 seconds
DCBL software
version is displayed
for 5 seconds
Hour meter display
SiAUY361411EA
SW3 UP
SW7
SW4
NEXT
ENTER
SW5
DOWN
022638-00E
023273-00E
Troubleshooting