13-10
TROUBLESHOOTING
SM DLSDCI 3-A.1 GB
No
Fault Name
Fault Description
Corrective Action
31
Operation conditions are
exceeded
System is performing out
of its outdoor condition
limitations:
Cooling: >46°C , <-11°C.
Heating: >30°C , <-18°C.
Indication only, no action.
Check if indeed the conditions are
exceeded. If not, check OAT thermistor, if
OK, check no obstructions to outdoor air
path.
13.4.3
Fault Code for Indoor unit
Note:
Indoor unit diagnostics can be viewed by the outdoor unit display board
(13.4
).
The below procedure is for viewing the indoor unit codes via the indoor unit led display.
Pressing Mode button for more than 5 seconds will activate diagnostic mode by the acknowledgment
of 3 short beeps and lighting of COOL and HEAT LED’s.
When Indoor diagnostics is displayed, all four LED’s (STBY, Operate, Filter, TMR) are on.
Entering diagnostics in STBY mode allows only viewing of status (fault-display).
In diagnostic mode, system problems / information will be indicated by blinking of Heat & Cool LED’s.
The coding method will be as follows:
Heat led will blink 5 times in 5 seconds, and then will be shut off for the next 5 seconds. Cool Led will
blink during the same 5 seconds according to the following table:
No
Fault Name
5
4
3
2
1
1
ICT is disconnected
0
0
0
0
1
2
ICT is shorted
0
0
0
1
0
3
RAT is disconnected
0
0
0
1
1
4
is shorted
0
0
1
0
0
5
Reserved
0
0
1
0
1
6
ICTE Shorted/Disconnected
0
0
1
1
0
7
'"`
0
0
1
1
1
8
No Communication
0
1
0
0
0
9
No Encoder
0
1
0
0
1
10
Reserved
0
1
0
1
0
11
Outdoor Unit Fault
0
1
0
1
0
…
Reserved
17
Defrost protection
1
0
0
0
1
18
Deicing Protection
1
0
0
1
0
19
Outdoor Unit Protection
1
0
0
1
1
20
Indoor Coil HP Protection
1
0
1
0
0
21
W
1
0
1
0
1
…
Reserved
24
EEPROM Not Updated
1
1
0
0
0
25
Bad EEPROM
1
1
0
0
1
26
Bad Communication
1
1
0
1
0
27
Using EEPROM data
1
1
0
1
1
28
Model A
1
1
1
0
0
29
Model B
1
1
1
0
1
30
Model C
1
1
1
1
0
31
Model D
1
1
1
1
1
1 - ON, 0 - OFF
Only one code is shown. Order of priority is lower to the higher number. Diagnostics is continuously
ON as long power is on.
Summary of Contents for DLS 43 DCI
Page 62: ...SM DLSDCI 3 A 2 GB 9 2 WIRING DIAGRAMS 9 3 Indoor Unit DLS 43 DCI...
Page 117: ...12 4 CONTROL SYSTEM SM DLSDCI 3 A 1 GB 12 11 7 Segment Legend 7 7 segments lege end...
Page 154: ...SM DLSD CONTRO DCI 3 A 2 OL SYSTEM M 15 2...
Page 155: ...SM DLSD CONTRO DCI 3 A 2 OL SYSTEM M 15 3...
Page 156: ...SM DLSD CONTRO DCI 3 A 2 OL SYSTEM M 15 4...
