Led Indicator Messages On Outdoor Control Pcb; Examples Of Alarm Display (Other Than E15, E16, And E20) - Sanyo C4272R Service Manual

(2) LED Indicator Messages on Outdoor Control PCB

Power ON sequence
1. No communication from indoor units in system
2. Communication received from 1 or more indoor units in system
3. Regular communication OK (Capacity and unit quantity match)
Normal operation
EEPROM error (F31)
Pre-trip (insufficient gas)
Pre-trip (P20)
Pre-trip (other)
Alarm
1
Insufficient gas indicator
Refrigerant recovery mode
Automatic address setting
Automatic address setting in progress
Automatic address setting alarm (E15)
2
Automatic address setting alarm (E20)
Automatic address setting alarm (Other than E15 and E20)
:
ON
:
Blinking (0.25/0.75) indicates that the lamp illuminates for 0.25 seconds, and then is OFF for 0.75 seconds.
Unless otherwise indicated, the blinking is (0.5/0.5).
:
3 OFF

(3) Examples of alarm display (other than E15, E16, and E20)

Alarm / Display
P03
4
P04
P05
P31
H01
•
E04
5
•
F07
•
L13
•
6
→
LED 1 Alternately
( Blinks 2 times )
( )
"
( )
"
( )
"
(Blinks 3 times)
•
(Blinks 4 times)
•
(Blinks 5 times)
•
(Blinks 6 times)
•
LED 1
(0.25/0.75)
(0.75/0.25)
Alternate blinking during alarms
LED 1 blinks M times, then LED 2 blinks N times.
The cycle then repeats.
M = 2: P alarm
N = Alarm No.
"
* Refer to 1. Examples of alarm display
(0.25/0.75)
(0.75/0.25)
→
LED 2
(Blinks 3 times)
(Blinks 4 times)
(Blinks 5 times)
(Blinks 31 times)
(Blinks 1 times)
(Blinks 4 times)
(Blinks 7 times)
Note:
(Blinks 13 times)
This table shows example alarms. Other alarms
may also be displayed.
IV-4
4. Service procedures
LED 2 Remarks
If it is not possible to
advance to 3, repeats 1 → 2.
At 3, changes to normal
control.
Displayed during automatic
address setting 1 and initial
communication. After these are
completed, alarm F31 is displayed.
P03
3: H alarm 4: E alarm 5: F alarm
"
below.
Blinking alternately
(0.25/0.75) Blinking simultaneously
(0.75/0.25)
Blinking simultaneously
Blinking simultaneously
6: L alarm
SM831148