V–15
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 Data name Display examples Remarks
← DOWN UP →
0. Current error code
No error
1. Most recent error log code
P15
2. Second most recent error log code
A20
3. Third most recent error log code
A04
4.1. Stop log 1
Temporary stop cause code *
2
12
Engine operation time when it
occurs *
1
4.2. Stop log 2
P20
~ ~ ~
4.9. Stop log 9
Temporary stop cause code 11
4.A. Stop log 10
Temporary stop cause code 2
4.B. Stop log 11
P03
4.C. Stop log 12
A20
5. error log clear
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. Stop Cause No. Stop Cause
1 Temporary stop due to insuffi cient differential
pressure of refrigerant during startup
18 –
2 When the discharge temperature is high, but the
liquid valve is not yet open.
19 The coolant temperature is high, but the 3-way
coolant valve is not completely open.
3 When the discharge temperature is high, but the
engine speed is still too high.
20 Excessive revolutions in the advantage mode.
4 When the high-pressure area is high, but the fan
output is still too low.
21 Momentary stop due to compressor oil return
control of the renewal unit.
5 When the high-pressure area is high, but the engine
speed is still too high.
22 Momentary stop due to refrigerant 3-way valve
positioning control.
6 When the high-pressure area is high, but the unit is
in advantage mode.
23 Momentary stop due to the possibility of a fl ameout.
7 When the high-pressure area is high, but it is less
than 3 minutes since the engine was started.
24 Momentary stop due to the possibility of the outdoor
unit running out of refrigerant.
8 Momentary stop during heating high-load learning
control 2.
25 Momentary stop due to the possibility of a clutch
connection error.
9 Pause due to no compressor oil (W-Multi only.) 26 Momentary stop due to a rapid rise in high pressure.
10 When the compressor intake temperature is high,
but the high pressure is also high.
27 Momentary stop due to a high coolant temperature
continuing.
11 When the discharge temperature is high, but the
indoor unit is emitting exhaust.
28 Momentary stop due to outdoor unit mode switching
being in progress (3WAY only.)
12 The high pressure is high, but it is still within 4
minutes of outdoor unit refrigerant outlet control.
29 Momentary stop due to the alignment of 4-way
valves with another unit failing (W-Multi only.)
13 The high pressure is high, but auto-addressing for
the heater is in progress.
43 High-pressure avoided during low-capacity heater
operations.
14 The high pressure is high, but auto-addressing is in
progress.
44 Momentary stop due to engine oil control.
15 Momentary stop due to heating high-load learning
control being in progress.
45 Engine stall due to load variation being in progress.
16 The engine has stalled during clutch control. 46 Engine stall due to special high-pressure avoidance
control being in progress.
17 Momentary stop due to 24 hour continual
operations.
GHPtroubleshooting.indbV‒15GHPtroubleshooting.indbV‒15 2012/11/2611:20:192012/11/2611:20:19
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