Daikin FXHQ-M, Engineeiring Data

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Installation EDUS39-600-F5
32 FXHQ-M
Diagnose with the display on the li q uid crystal display
remote controller.
1. With the w ired remote controller:.
When the operation stops due to trouble, the operation
lamp flashes and and the malfunction code is indicated in
the li
q uid crystal display. In such a case, diagnose by refer-
ring to the table on the malfunction code list. In case of
group control, the unit
N o. is displayed so that the indoor
unit N o. w ith the trouble can be recognized.
2. With the w ireless remote controller:
Also refer to the operation manual attached to the w ireless
remote controller.
When operation stops, the display on the indoor unit
flashes. Diagnose the malfunction code
w ith the follo w ing
procedures:.
(1) Press the I N SPECTIO N /TEST OPERATIO N button,
is displayed and [0] flashes.
(2) Press the PROGRAMMI N G TIME button and find the
stopped unit N o.
N umber of beeps
3 short beeps Perform all the follo w ing
operations
1 short beep Perform (3) and (6)
1 long beep N o trouble
(3) Press the OPERATIO N MODE SELECTOR button
and upper flashing malfunction code.
(4) Continue pressing the PROGRAMMI N G TIME button
until it makes 2 short beeps, and find the upper code.
(5) Press the OPERATIO N MODE SELECTOR button
and lo w er figure of the flashing malfunction code.
(6) Continue pressing the PROGRAMMI N G TIME button
until it makes a long beep, and find the lo w er code. A
long beep indicates the malfunction code
re
q uires attention.
NOTES:
1. Using a w ired remote controller: Press the I N SPECTIO N /
TEST OPERATIO N button on remote controller till starts
flashing.
2. While in inspection mode, hold do w n the O N /OFF button
for 5 seconds or longer till the above trouble history disap-
pears. After the trouble code goes on and off t
w ice the
(normal) code is displayed.
12-2 MALFUNCTION CODE
• For places w here the malfunction code is left blank, the
indication is not displayed. The shaded areas indicate
w hen the unit does not display a malfunction code and con-
tinues running even though it might need attention.Be sure
to inspect the system and make repairs as necessary.
• Depending on the type of indoor or outdoor unit, the mal-
function code may or may not be displayed.
Order Operation
(1) Open gas-side stop valve.
(2) Open li q uid-side stop valve.
(3) Electrify crank case heater for 6 hours.
(4)
Set to cooling w ith the remote controller and push
“ ” button to start operation.
(5)
Push“ ”button t w ice and operate in TEST
OPERATIO N MODE for 3 minutes.
(6) Push“ ”button and confirm its operation.
(7)
Push“ ”button and operate normally.
(8) Confirm its function according to the operation manual.
Code Malfunction/Remarks
A1 Micro-computer in PCB is not w orking
A3 Drain level is too high
A6 Fan motor error
A7 S w ing louver motor error
A9 Electronic expansion valve drive error
AJ
Capacity setting error
C4
Resistance of indoor unit heat exchanger is abnor-
mal.
C5 Sensor R3T for heat exchanger temperature impaired
C9
Resistance of indoor unit suction-air thermistor is
abnormal.
CJ
Sensor for remote controller impaired
Resistance of the remote controller thermistor is
abnormal.
E3 Abnormally high pressure (outdoor unit)
E4 Abnormally lo w pressure (outdoor unit)
E5 Compressor overheats
E7
Outdoor fan motor locks
E9 Electronic expansion valve impaired (outdoor unit)
F3 Outdoor unit discharge temperature is too high
F6 Overcharged refrigerant
H9 Outdoor air thermistor impaired (outdoor unit)
J3 Discharge pipe thermistor impaired (outdoor unit)
J5 Suction pipe thermistor impaired (outdoor unit)
J6 Heat exchanger thermistor impaired (outdoor unit)
J9 Sensor for heat exchanger impaired
JA Sensor for high pressure impaired
JC Sensor for lo w pressure is fault.
L4
Overheating radiation fin or excessive temperature in
po
w er transistor
(outdoor)
O N /OFF
TEST
SWI N G
TEST