50
ENGLISH
SELF DIAGNOSIS FUNCTION
Example of error occurrences
Error occurrence order
For outdoor unit error code and inspection, refer to MULTI V technical material.
Situation
Error occurred
Pipe entrance temperature sensor defect
(communication PCB rotary switch number: No. 01)
CH
→
2
→
01
Communication defect between communication PCB and outdoor unit
(communication PCB rotary switch number: No. 05)
CH
→
5
→
05
SA duct temperature value error occurred
CH
→
13
→
02
RA duct humidity value error occurred
CH
→
14
→
01
ῡ
ῢ
ΰ
Display
number
Error category
Error occurred
location
Cause of Error occurrence
CH
15
00 CO
2
sensor defect
-
If it is within the error boundary due
to the CO
2
sensor disconnection/
short circuit/single unit defect.
CH
16
05
Pressure sensor de-
fect
Pressure difference
If the sensor value due to the pres-
sure sensor (pressure difference,
rated pressure) disconnection/short
circuit/single unit defect is within the
error boundary.
06
Static pressure
CH
17
01
Air Flow sensor de-
fect
RA
If the sensor value due to the Air
Flow sensor(SA,RA)
disconnection/short circuit/single unit
defect is within the error boundary.
02
SA
h
Error occurrences are indicated on 7 segment in
the order of
① → ② → ③
.
CAUTION
1. How to release smoke removal Error(CH 8) occurrence
①
Dip switch No. 23 ON
→ ②
PCB Reset
→ ③
FND(7segment) mark verification (display sequentially No. 1~9
→ (
)
→
④
Dip switch No. 23 OFF
→ ⑤
PCB Reset
→ ⑥
Release completed
!
