Troubleshooting From Error Display - Sanyo SAP-KRV9AEH Service Manual

8-3. Troubleshooting from Error Display

4 minutes after protection stop of compressor, the malfunction is shown in error code.
NOTE
In other situation, the malfunction will be displayed by press the light button for 6 times within 4 seconds.
Malfunction
Code
1 Storage slug
Indoor PCB
2
malfunction
3 Anti-freezing protection
4 Overload of system
No motor of indoor
5
unit feedback
Indoor pipe
temperature sensor
6
malfunction
Internal ambient
temperature sensor
7
malfunction
Zero passage
8
abnormal
Overload of
9
compressor
Startup failure
10
No motor of outdoor
11
unit feedback
Over current
12
protection
4-way valve
13
conversion abnormal
Phase current
detection malfunction
14
of compressor
15 Sync failure
Error Display
Dual 8
LED
Display
Heating LED-pause 3 seconds
EE
and blink 15 times
Heating LED-pause 3 seconds
EE
and blink 15 times
Running LED-pause 3 seconds
E2
and blink 2 times
Heating LED-pause 3 seconds
H4
and blink 4 times
Running LED-pause 3 seconds
H6
and blink 11 times
Cooling LED-pause 3 seconds
F2
and blink 2 times
Cooling LED-pause 3 seconds
F1
and blink 1 time
Heating and cooling LED blink
UF
7 times at the same time
Heating LED-pause 3 seconds
H3
and blink 3 times
Heating LED-pause 3 seconds
LC
and blink 11 times
Heating and cooling LED blink
UH
8 times at the same time
Running LED-pause 3 seconds
E5
and blink 5 times
Cooling LED-pause 3 seconds
U7
and blink 20 times
Heating LED-pause 3 seconds
U1
and blink 13 times
Heating LED-pause 3 seconds
H7
and blink 7 times
Replace indoor main board.
Replace indoor main board.
Outdoor ambient temperature is too low.
System is abnormal, check if the evaporator
and condenser is dirty and blocked.
Is electromotor mounted normally ?
Is it loose ?
Measure the resistance value with universal
meter.
Is it loose ?
Measure the resistance value with universal
meter.
Replace indoor main board.
Inspect connection state of the overload wire.
Check if the resistance of compressor and
resistance to ground is normal.
If the compressor is normal, the outdoor main
board may be wrong.
This malfunction may happen when outdoor
DC electromotor is used.
Is electric network variable ?
Replace 4-way valve.
Replace outdoor main board.
Check if the resistance of compressor and
resistance to ground is normal.
If the compressor is normal, the outdoor main
board may be wrong.
35
Repair Method