Sanyo SPW-C483GY8 - 1. Troubleshooting; 1-4. Alarm Messages on the Outdoor PCB

III - 10
Service Procedures
3
SM830052
1. Troubleshooting
1-4. Alarm Messages on the Outdoor PCB
(In ordinary use, the outdoor alarm LED (yellow) is off and the LED (red), which indicates the number of connected
indoor units, is turned on.)
Alarm messages indicated by the LED (red) on the outdoor PCB.
● When the outdoor alarm LED (yellow) is OFF, the LED (red) lamps blink Thermostat OFF run, with no alarm
display on the remote controller.
● When the outdoor alarm LED (yellow) is ON, LED (red) lamps light up An alarm message is also displayed
on the remote controller.
O : light - up / blink
87654321
E4
E6 OOOSerial signal receiving fault
E7 OOOO
Serial signal sending fault
E15 O OOOO
E16 OO
P2 OOO O
Protective device activated
P3 OOO OO Incorrect discharge temp.
P4 OOO O High-pressure switch
P5 OOO O OProtective device
activated
F4 OO O Sensor fault
F5 OO O O
F7 OO O OO
F25 OO O O O
F17 OOOO OIncorrect discharge gas temp. of AC comp.
H1 OO
PC comp.
H2 OO
CT detection current
H11 OOOO
AC comp.
H12 OOO
CT detection current
H9 OOOComp. contactor protection
H10 OOOVoltage unbalance protection
H19 OO OOComp. contactor protection
L4 OO O Outdoor unit address (R.C. No.) is duplicated.
Remote
controller
display
Possible cause of fault
LED (red)
Connected indoor units’ No.
of LED (red) lamps blink or
all lamps turned off
When turning on the power supply, No. of indoor units connected is not
correspond with set No. of S004 (except R.C. No. setting is 0).
The number of connected
indoor units are less than the
set number in the outdoor PCB.
The number of connected
indoor units are more than the
set number in the outdoor PCB.
Serial signal receiving fault
Indoor/outdoor unit combination fault
(incorrect indoor unit count : S004 setting)
Serial signal sending fault
During Auto. address setting, alarm LED
(yellow) lamp lights up. The LED (red) lamps
light up or blink when CN25 (2 pin plug,
white) is shortened.
Fan motor protection thermostat
PC comp. protection thermostat
AC comp. thermostat
Defective phase
PC comp.
PC comp. or AC comp.
Negative phase protector or defective phase
protector, or Voltage drop protector
Discharge temp. A (PC comp.)
Discharge temp. B (AC comp.)
Outdoor coil liquid temp. (C1)
Outdoor coil gas temp. (C2)
Error in Current value (overload)
Error in Current value (lock)
Error in Current value (overload)
Error in Current value (lock)
PC (AC) comp. contactor is chattering.
Power supply voltage between phases
is unbalanced.
AC comp. contactor is chattering.
● PC comp. : Power Control Compressor
● AC comp. : Standard Compressor
● temp. : Temperature
NOTE