3-26
SM-18003
TROUBLESHOOTING
Alarm
Code
Abnormality of Thermistor for Liquid Refrigerant Pipe Temperature
at Indoor Unit Heat Exchanger (Freeze Protection Thermistor)
l
The RUN indicator (red) flashes.
l
The indoor unit number (refrigerant cycle number - address number), the alarm code, the model code
1
,
the model name
1
and the number of connected indoor units are displayed on the LCD. The indoor unit
number and the alarm code are displayed on the 7-segment display of the outdoor unit PCB.
Note 1: Except for some models.
This alarm code is displayed when a short (0.24kΩ or less) or open sensor (840kΩ or more) is detected
during a heating or cooling operation. The operation automatically restarts when the malfunction is
removed.
Yes
Connect them.
No
Refer to "Alarm Code 11"
for thermistor resistance.
Is thermistor THM3
(for freeze protection)
connected to THM3 of
I.U. PCB?
Yes
No
Is resistance of THM3
between 0.24k
Ω
and
840k
Ω
?
Failure of I.U. PCB
Failure of
Thermistor
Cause
Check Item
Action
(Turn OFF Main Switch)
Event
Failure of
Freeze Protection
Thermistor
Check resistance.
Replace thermistor
if faulty.
Failure
Check wiring to
I.U. PCB.
Correctly connect wires.
Incorrect Connection
Replace I.U. PCB
and check operation.
Replace I.U. PCB
if faulty.
Failure of I.U. PCB
Liquid Pipe Thermistor
(Freeze Protection)
Содержание CICM008B21S
Страница 2: ......
Страница 10: ...viii SM 18003 ...
Страница 15: ...SM 18003 1 1 INSTALLATION 1 Installation ...
Страница 19: ...SM 18003 2 1 OPERATION 2 Operation ...
Страница 20: ...2 2 SM 18003 OPERATION 2 1 Indoor Unit Refer to the Operation Manual for Mini Cassette ...
Страница 22: ......
Страница 23: ...SM 18003 3 1 TROUBLESHOOTING 3 Troubleshooting ...
Страница 73: ...MAINTENANCE SM 18003 4 1 4 Maintenance ...
Страница 74: ...MAINTENANCE 4 2 SM 18003 4 1 Maintenance of Outdoor Unit Refer to the Service Manual for Outdoor Unit ...
Страница 99: ...SM 18003 5 1 EXTERNAL INPUT OUTPUT AND FUNCTION SETTING 5 External Input Output and Function Setting ...
Страница 138: ......
Страница 139: ...SM 18003 6 1 FIELD WORK INSTRUCTIONS 6 Field Work Instructions ...
Страница 148: ...6 10 SM 18003 FIELD WORK INSTRUCTIONS 6 8 Mollier Chart for R410A f t 3 l b ...
Страница 149: ...SERVICE PARTS LIST SM 18003 7 1 7 Service Parts List ...
Страница 150: ...SERVICE PARTS LIST 7 2 SM 18003 Refer to the Service Parts List for Mini Cassette ...
Страница 151: ......
Страница 152: ... 2018 Johnson Controls Inc SM 18003 Code No LIT 12013034 Issued April 2018 ...