Daikin GYEQ20AN Service Manual page 86

Test Run Manual
2 How to Perform a Test Run
How to Use the PCB Checker
CAUTION
Wipe soil, oil and water from your hands before
operating pushbuttons and switches on the PCB.
Oil and water may cause electric shocks or the PCB
to malfunction.
Be sure to operate pushbuttons with your hands,
not with a ballpoint pen or other tools. Failure to do
so will cause the PCB to malfunction.
CAUTION
The unit goes into sleep mode 10 minutes it was
turned on or operated. In that case, the PCB
checker is not operational. If operation is not
possible (due to sleep mode), press "SW2 checker wiring change" once to release the sleep mode
and enable operation. (If SW2 is pressed continuously, the wiring change operation is activated.)
Hour Meter / Error Code Display
The hour meter (7-segment meter) on the PCB displays the total operated hours time during normal
operation. When an error or fault occurs, the total operated hours and error code are displayed
alternately and repeatedly at one second intervals.
1) When operating for 8238 hours
When the total operated hours are displayed: Holding down the
Communication status display available
The dot in the 6th digit (far left) indicates the status of communication with the indoor units and flashes once
when the connection is established.
75
RUN
SW2
STOP
Checker
Wiring
change
2) When malfunction code E1 occurs
022711-00E
UP
the main CPU software version.
Holding down the
UP
longer) ... displays the EEPROM serial number.
Holding down the DOWN button (for 3 seconds) displays
the DCBL software version.
Holding down the DOWN button (for 3 seconds or
longer)...displays the Ignition CPU software version.
Holding down the BACK
the model. (The type is displayed by a two-letter code as
shown below.)
display AF
Holding down the
BACK
longer) displays the status of communication with the
indoor units and the number of connected indoor units.
Holding down the ENTER button (for 3 seconds or
longer) clears the alarm condition.
NEXT : Pressing this button activates the RUN mode.
– 8 –
SiAUY361411EA
SW3 UP
SW7
SW6 SW4
BACK NEXT
ENTER
CH DATA
SW5
DOWN
[h]
022638-00E
button (for 3 seconds) displays
button (for 3 seconds or
button (for 3 seconds) displays
button (for 3 seconds or
0FGHP-EN0841 DGJ002
Device Overview