KX High Wall Indoor Units on Wireless Remote Control
When fitted with the wireless remote control kit the high wall units do not show the error code on an digital readout. The error code is indicated in the following manner.
FDK15-56KXE6 FDK71KXE6 FDK15-56KXZE1 FDK71-90KXZE1
The 'TIMER/CHECK' LED on the KX6 indoor units will flash continously to indicate there is a fault.
On both the KX6 and the KXZE1 high wall units the actual error code is indicated by the number of flashes (0.5s on/0.5s off) in a 10 second period of the 'CHECK1' / 'RUN/CHECK1' (tens) and the 'CHECK2' / 'TIMER / CHECK2' (ones) LEDs.
ie An E39 High Discharge fault would be indicated as follows
KX6 KXZE1 Flash Rate
On Off
CHECK1 RUN/CHECK1
(Orange (Green)
CHECK2 TIMER/CHECK2
(Orange) (Orange)
Green Red Green Red Location of Trouble Probable Causes
Communication error (indoor-
remote control)
Poor or wrong connection, broken wire, intrusion
of noise, faulty indoor PCB or remote control
stays off Duplicated indoor unit address
Number of connected indoor units exceeds the
limitation, duplicated indoor unit address,
indoor control PWB anomaly.
stays off Outdoor unit signal line error
Power not supplied to the O/D unit, mismatch
of pairing between I/D and O/D units, indoor
control PWB anomaly, Outdoor control PWB
anomaly, Missing local wiring.
Communication error during
operation
Unit address number setting error, remote
control wires broken, poor
connection/disconnection of remote control
wires, indoor control PWB anomaly
Indoor heat exchanger
thermistor anomaly
Anomalous connection of I/D heat exchanger
temperature thermistor, I/D heat exchanger
thermistor anomaly, I/D control PWB anomaly
Indoor return air temperature
thermistor anomaly
Anomalous connection of I/D return air
temperature thermistor, I/D return air thermistor
anomaly, I/D control PWB anomaly
stays off Drainage trouble
I/D control PWB anomaly, Mistake in setting of
float switch, mistake in setting of optional
equipment, mistake in drain piping, drain motor
anomaly, disconnection/breakage of drain
motor wires
Excessiv e number of indoor
units (more than 17 units) by
controlling one remote control
Excessiv e number of I/D units, remote control
anomaly
Address setting error between
master and slav e indoor units
IU address has been set using the "Master IU
address set" function of remote control
Address setting error by mixed
setting method
Automatic address setting and manual address
setting method are mixed when setting address
of indoor units
Indoor fan motor anomaly
(FDT, FDTC, FDTW, FDTS, FDU,
FDUM, FDK, FDUT71, FDFW
series)
I/D fan motor anomaly, foreign matter at
rotational area of fan propeller, fan motor
anomaly, dust on control PWB, blown fuse,
external noise, surge
Address setting error of master
and slav e indoor units
Address setting error of the master indoor unit,
no power to the master indoor unit, no
connection of super link signal wires between
master and slav e indoor unit
Indoor unit operation check
drain motor check mode
anomaly
Mistake in SW7-1 setting due to forgetting to
turn off SW7-1 after indoor operation check
KX SELF-DIAGNOSIS INFORMATION
FDCA----HKXE4_HXKRE4. FDC----KXEN6, KXE6, KXRE6, KXZE1, KXZPE1,
KXZRE1
KX SELF-DIAGNOSIS INFORMATION
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