Specifications

39
SRK-GZ
(2) Self diagnosis display on indoor unit
TIMER lamp
ON
RUN lamp
1 time flash
2 time flash
6 time flash
RUN lamp
keeps flashing
TIMER lamp
1 time flash
2 time flash
4 time flash
Outdoor unit LED
OFF
OFF
OFF
Heat exchanger thermistor error
Room temperature thermistor error
Indoor fan motor error
¡ Broken heat exchanger thermistor wire, connec-
tor poor connection
¡ Broken room temperature thermistor wire, con-
nector poor connection
¡ Defective fan motor, connector poor connection
Trouble Cause Conditions of flashing
When heat exchanger sensor temperature of –20˚C or under continued
for more than 3 minutes while operation is stopped. (This is not dis-
played during operation.)
When room temperature sensor temperature of –20˚C or under contin-
ued for more than 3 minutes while operation is stopped. (This is not
displayed during operation.)
When air conditioner is operating and indoor fan motor is turned ON,
indoor fan motor speed of 300 rpm or under continued for more than 30
seconds. (Air conditioner stops.)
OFF
OFF
OFF
External temperature thermistor
error
Outdoor unit heat exchanger
thermistor error
Discharge pipe (Comp.dome)
thermistor error
¡ Broken outdoor thermistor wire, connector poor
connection
¡ Broken heat exchanger thermistor wire, connec-
tor poor connection
¡ Broken discharge pipe (Comp. dome) thermistor
wire, connector poor contact
When outdoor temperature thermistor temperature of –40˚C or under
continued for more than 3 seconds while operation is stopped.
(This is not displayed during operation.)
When heat exchanger entrance thermistor temperature of –50˚C or un-
der continued for more than 3 seconds while operation is stopped.
(This is not displayed during operation.)
When outdoor revolution speed of 0 rps continued for 3 minutes and
then broken wire signal has been transmitted by discharge pipe (Comp.
dome) thermistor data for more than 10 seconds. (Compressor stops.)
1 time flash
2 time flash
3 time flash
5 time flash
6 time flash
RUN lamp
ON
1 time flash
2 time flash
3 time flash
5 time flash
6 time flash
Current cut
Outdoor unit error
Current safe stop
Compressor overheat
Serial signal transmission error
Rotor lock
¡ Broken power transistor, broken compressor wire
¡ Discharge pipe thermistor poor contact.
¡ Overload operation, overcharge, compressor lock
¡ Gas shortage, defective discharge pipe (Comp.
dome) thermistor, closed service valve
When converter output current which exceeds setting value is detected.
(Compressor stops.)
When input current value which is lower than setting value continued
for more than 3 minutes. (Compressor stops.)
When inverter revolution speed is lower than setting value, when cur-
rent safe function is actuated. (Compressor stops.)
When discharge pipe (Comp. dome) thermistor value exceeds setting
value. (Compressor stops.)
Indoor unit controller ↔ Outdoor unit controller signals have not been
transmitted for more than 10 seconds. (Compressor stops.)
When the position of the magnetic pole of the compressor motor cannot
be properly detected.
¡ Compressor lock, open phase on compressor out-
put terminals, shortcircuit on power transistor.
¡ Power supply problem
¡ Broken signal wire, defective indoor/outdoor unit
PCB
¡ Compressor defective
¡ Outdoor unit circuit board defective
2 time flash 2 time flash
(1)
Note (1) SRK502Z-L only
RUN lamp
2 time flash