Alarm Messages On The Outdoor Pcb - Sanyo SPW-CR363GVH8 Service Manual

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
display on the remote controller.
When the outdoor alarm LED (yellow) is ON, LED (red) lamps light up
on the remote controller.
Remote
controller
8 7 6
display
Connected indoor units' No.
E4
of LED (red) lamps blink or
all lamps turned off
O
E6
O
E7
O
E15
O
E16
3
O O O
P2
O O O
P3
O O O
P4
O O O
P5
O O
F4
O O
F5
O O
F6
O O
F7
O O
F8
O O O O
P17
O
H1
O
H2
O
H11
O
H12
O
H9
O
H19
O O
L4
NOTE
PC comp. : Power Control Compressor
AC comp. : Standard Compressor
temp. : Temperature
LED (red)
5 4 3 2 1
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).
O O
Serial signal receiving
O O O Serial signal sending fault
O O O O
The number of connected
indoor units are less than the
set number in the outdoor PCB.
The number of connected
O
indoor units are more than the
set number in the outdoor PCB.
O
Protective device activated
O O Incorrect discharge temp.
O
High-pressure switch
O O Protective device
activated
O
Sensor fault
O O
O O
O O O
O
O Incorrect discharge gas temp. of AC comp.
O PC comp.
O
CT detection current
O O O AC comp.
O O
CT detection current
O O Comp. contactor protection
O O O Comp. contactor protection
O
Outdoor unit address (R.C. No.) is duplicated.
An alarm message is also displayed
Possible cause of fault
fault 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 gas temp. (C2)
Outdoor coil liquid temp. (C1)
Outdoor air suction temp.
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.
AC comp. contactor is chattering.
III - 10
Service Procedures
Thermostat OFF run, with no alarm
O : light - up / blink
SM830063