
Troubleshooting
Si71-502
36
Troubleshooting
1. Troubleshooting
1.1
Error Code Indication
When an abnormality is generated, take necessary measures by referring to displayed error code.
After the cause of abnormality is removed, operate equipment and check proper functioning.
List of malfunction codes displayed by LCD remote controller
In case of the malfunction with the shaded error code, the unit still operates. However, be sure to have it
inspected and repaired and as soon as possible.
Main Unit PCB
LCD Remote Controller Display
Description of Abnormality
Page
Error Code Operation
LED
Inspection
Indication
Unit No.
60
ON
OFF
Blinking
Overall alarm
P37
Blinking
Blinking
Blinking
Overall malfunction
P38
64
ON
OFF
Blinking
Inside air thermistor error
P39
65
ON
OFF
Blinking
Outside air thermistor error
P40
6A
ON
OFF
Blinking
Damper system alarm
P41
6A
Blinking
Blinking
Blinking
Damper thermistor error
P42
U5
Blinking
Blinking
Blinking
Data transmission error between LCD remote
controller and main unit
U5
OFF
Blinking
OFF
LCD remote controller connection error
P45
U8
OFF
Blinking
OFF
Data transmission error between master-slave
LCD remote controllers
UA
OFF
Blinking
OFF
LCD remote controller connection error (no
remote controller for air conditioner in air
conditioner group)
UC
ON
ON
ON
Overlapping central control address
UE
Blinking
Blinking
Blinking
Transmission error between the unit and
centralized controller
—
Inspection indication
Error code
Indication of unit No. of abnormal
heat reclaim ventilation unit
Operation lamp
(LED)
(HL027)
Exhaust
air fan
Supply
air fan
CN3
CN4
CN2
CN1
CN7
FuL
10A
CN13
CN8
CN12
CN5
CN6
CN9
KRP
50-2
CN11
CN10
L
N
P2
P1
F1
F2
J1
J2
JC
LED A
(HL031)
(Microcomputor Operation Monitor)
Содержание VAM 350GJVE
Страница 7: ...Introduction Si71 502 vi 1 1 1 Cautions in Operation and Maintenance...
Страница 8: ...Si71 502 Introduction vii...
Страница 13: ...General Constructions Si71 502 4 General Constructions...
Страница 29: ...Maintenance Si71 502 20 Maintenance...
Страница 43: ...Circuit Operations Si71 502 34 Circuit Operations...
Страница 103: ...After sales Service Si71 502 94 Operation Manual...
Страница 106: ...Si71 502 Appendix Appendix 97 VAM1500GJVE VAM2000GJVE...
Страница 107: ...Appendix Si71 502 98 Appendix...