Daikin GYEQ20AN Service Manual page 125

SiAUY361411EA
1.2.2 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.
Fig. 4.3/ Example of hour meter display3-112
When the total operated hours are displayed:
UP
DOWN
ENTER
• Communication status display available when indoor units are connected:
1.2.3 How to Use the Checker on PCB
You can use the onboard switch SW1 to switch the checker function between the RUN and
STOP modes.
Table 4.2/ SW1 and pushbutton functions
UP
DOWN
NEXT
BACK
ENTER
ENTER (hold down) Clears the settings or makes them editable
SW1
Fig. 4.4/ Navigation with the switches
Troubleshooting
1) When operating for 8238 hours
: Holding down this button (for 3 seconds) displays the main CPU software version.
: Holding down this button (for longer than 3 seconds) displays the EEPROM serial
number.
: Holding down this button (for 3 seconds) displays the DCBL software version.
: Holding down this button (for longer than 3 seconds) displays the Ignition CPU
software version.
BACK : Holding down this button (for 3 seconds) displays the model. (Type is converted into
two-digit code as shown below.)
: Holding down this button (for longer than 3 seconds) displays the status of
communication with the indoor units and the number of connected indoor units.
: Holding down this button (for longer than 3 seconds) clears the alarm condition.
NEXT
: Pressing this button activates the RUN mode.
The dot in the 6th digit (leftmost) indicates the status of communication with indoor units and
flashes once when the connection is established.
Button name
Selects a different channel (CH)
Selects a different channel (CH)
Moves to the next level
Returns to the previous level
Saves settings / (moves to the next menu)
Switches between RUN and STOP modes
Comm. status
display with
indoor unit
Model GYEQ
Display AF
Function
EEPROM serial
No.display
Display by
pressing UP
for 3 seconds
Main CPU
software version
Display by
display
pressing BACK
for 3 seconds
Back Up
Accumulated
Model code
operating time
display
display
Down
Back Next
DCBL software
version display
SW1
Display by
pressing DOWN
for 3 seconds
Spark CPU
software version
display
Troubleshooting the Outdoor Unit
2) When malfunction code E1 occurs
Clear alarm
Press ENTER
for 3 seconds
to clear alarm
Press NEXT to
RUN mode
enter the RUN mode
checker
control board check
function
7SEG 6 digits
RUN
STOP
023300-00E
022711-00E
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