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SiBE811001EB
Troubleshooting
CONVENI-PACK
146
Note:
∗
1. IGBT: IGBT is a power semiconductor device primarily used as an electronic switch.
48
Power supply
voltage
imbalance
P1
Inverter PCB
Voltage waveform appeared identical to an
open phase.
7
• INV. compressor stops
• STD1, STD2 compressors stop
• Standby: 1 - 6 min.
• 8
th
retry: "P1" output to AIRNET
• Compressor max limit is ON during retry attempts
• Retry counter decrements 1 when INV. compressor
runs 1 min. or more total.
• 10
th
retry: INV. compressor stops due to error
ON if compressor on cooling
equipment side is running.
—
—
1
(P1 retry count)
8
(P1 output)
00
"P1" output to AIRNET
Reset the remote controller or the operation
switch, or recycle power
9
—
ON if AIRNET not present
(10)
INV. compressor stops
49
Fin thermistor
error
P4
Inverter PCB
Radiator fin thermistor became OPEN or a
short circuit was detected.
—
—
ON if compressor on cooling
equipment side is running.
—
ON if AIRNET not present
1
00
"P4" output to AIRNET
Reset the remote controller or the operation
switch, or recycle power
50
Reverse
phase error
U1
Outdoor unit
main PCB
Reverse phase or open phase detected
when power was turned ON.
—
—
OFF
ON
—
1
00
Tested only when power is turned ON.
Recycle power
51
INV.
compressor
voltage too
low
U2
Inverter PCB DC voltage was 190 V or less.
7
• INV. compressor stops
• STD1, STD2 compressors stop
• Standby: 1 - 6 min.
• 8
th
retry: "U2" output to AIRNET
• Retry counter resets when INV. compressor runs 10
min. or more total.
• 10
th
retry: INV. compressor stops due to error
ON if compressor on cooling
equipment side is running.
—
—
1
(U2 retry count)
8
(U2 output)
00
"U2" outputs to AIRNET
Reset the remote controller or the operation
switch, or recycle power
9
—
ON if AIRNET not present
(10)
INV. compressor stops
List of Error Codes (LRYEQ16AY1)
No.
Item
Code
(Remote
controller
display)
Detection
device
Detection conditions
Times of retry
Retry action
R1 signal
Abnormal
stop output
Output during backup
(Only when AIRNET
address is 0)
Times when using
AIRNET output
Sub-classification code
(only for BRC1E1/2/3
remote controllers)
Processing after error is confirmed
Reset procedure