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Checking code
Meaning, detecting method
Cause
Checking method & Countermeasure
5201
5201
5203
5301
Pressure
sensor
abnormality
(outdoor unit)
ACCT sensor
error (Error
details No. 115)
DCCT sensor
error (Error
details No. 116)
Pressure sensor abnor
mality (BC controller)
High
pressure
side
Intermedi-
ate
1
When pressue sensor detects
0.098MPa or less during operation,
outdoor unit once stops with 3
minutes restarting mode, and
restarts if the detected pressure of
pressure sensor exceeds 0.098
MPa imediately before restarting.
2
If the detected pressure of sen-
sor is less than 0.098MPa
immediately before restarting,
error stop is commenced
displaying 5201.
3
Under 3 minutes restarting
mode, LED displays intermittent
fault check.
4
During 3 minutes after com-
pressor start, defrosting and 3
minutes after defrosting opera-
tions, trouble detection is ig-
nored.
When high or intermidiate
pressure sensor detects
0.098MPa or less immediately
before starting, error stop is
commenced displaying
“5201” or “5203”.
1) Pressutre sensor trouble.
2) Inner pressure drop due to a leak-
age.
3) Broken cover.
4) Coming off of pin at connector por-
tion, poor contact.
5) Broken wire.
6) Faulty thermistor input circuit of
MAIN board.
1) Pressure sensor trouble.
2) Inner pressure drop due to gas leak.
3) Broken cover.
4) Coming off of pin at connector por-
tion, poor contact.
5) Broken wire.
6) Faulty pressure sensor input circuit
of control board.
See Troubleshooting of pressure
sensor.
See Troubleshooting of pressure
sensor.
1.5Amps output current's
effective value 1.5Amps was
detected during inverter
operation.
Check the INV board CNCT2
(ACCT) contact, CNDR2 and G/A
Board CNDR1.
1) Contact is faulty.
The start current detected by
DCCT is too low
Check the connector connection
on the INV board CNCT (DCCT),
DCCT side.
1) Contact is faulty.
Check DCCT installation direction
2) DCCT sensor incorrectly installed
Replace the DCCT sensor
3) DCCT sensor is faulty.
Replace the INV board
4) INV board fault
Replace the ACCT sensor
2) ACCT sensor is faulty.
ACCT sensor
circuit error
(Error details
No. 117)
An abnormal value was de-
tected with the ACCT detec-
tion circuit just before the INV
started.
Refer to
¶
[1] (7) 2) [1].
[Check INV board error detection circuit]
1) INV board fault
Refer to
¶
[1] (7) 2) [2]. "Check
compressor ground fault" and
winding error".
Refer to
¶
[1] (7) 2) [5].
"Check inverter circuit fault".
2) Compressor ground fault and IPM
fault.
Summary of Contents for CITY MULTI CMB-P1016V-F
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Page 72: ... 71 ...
