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4) Error code, temporary stop cause code display (Level 1)
During displays with no error and displays when error incidents occur, pressing the SET (S007) key causes
the error code and temporary stop cause code to be displayed.
Data is displayed by selecting with the UP (S005) and DOWN (S006) keys.
Data code
0.
Current error code
1.
Most recent error log code
2.
Second most recent error log code
3.
Third most recent error log code
4.1.
Stop log 1
4.2.
Stop log 2
~
~
4.9.
Stop log 9
4.A.
Stop log 10
4.B.
Stop log 11
4.C.
Stop log 12
5.
error log clear
Note:
1
*
: Stop cause (or fault code) and stopped engine's operation time are displayed alternatively.
2
*
: Cause code are listed below.
No.
1
Temporary stop due to insuffi cient differential
pressure of refrigerant during startup
2
When the discharge temperature is high, but the
liquid valve is not yet open.
3
When the discharge temperature is high, but the
engine speed is still too high.
4
When the high-pressure area is high, but the fan
output is still too low.
5
When the high-pressure area is high, but the engine
speed is still too high.
6
When the high-pressure area is high, but the unit is
in advantage mode.
7
When the high-pressure area is high, but it is less
than 3 minutes since the engine was started.
8
Momentary stop during heating high-load learning
control 2.
9
Pause due to no compressor oil (W-Multi only.)
10 When the compressor intake temperature is high,
but the high pressure is also high.
11 When the discharge temperature is high, but the
indoor unit is emitting exhaust.
12 The high pressure is high, but it is still within 4
minutes of outdoor unit refrigerant outlet control.
13 The high pressure is high, but auto-addressing for
the heater is in progress.
14 The high pressure is high, but auto-addressing is in
progress.
15 Momentary stop due to heating high-load learning
control being in progress.
16 The engine has stalled during clutch control.
17 Momentary stop due to 24 hour continual
operations.
Data name
Stop Cause
V–15
Display examples
No error
P15
A20
A04
Temporary stop cause code *
Engine operation time when it
occurs *
P20
~
Temporary stop cause code 11
Temporary stop cause code 2
P03
A20
error log clear
No.
Stop Cause
18 –
19 The coolant temperature is high, but the 3-way
coolant valve is not completely open.
20 Excessive revolutions in the advantage mode.
21 Momentary stop due to compressor oil return
control of the renewal unit.
22 Momentary stop due to refrigerant 3-way valve
positioning control.
23 Momentary stop due to the possibility of a fl ameout.
24 Momentary stop due to the possibility of the outdoor
unit running out of refrigerant.
25 Momentary stop due to the possibility of a clutch
connection error.
26 Momentary stop due to a rapid rise in high pressure.
27 Momentary stop due to a high coolant temperature
continuing.
28 Momentary stop due to outdoor unit mode switching
being in progress (3WAY only.)
29 Momentary stop due to the alignment of 4-way
valves with another unit failing (W-Multi only.)
43 High-pressure avoided during low-capacity heater
operations.
44 Momentary stop due to engine oil control.
45 Engine stall due to load variation being in progress.
46 Engine stall due to special high-pressure avoidance
control being in progress.
Remarks
2
12
1
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Troubleshooting
