1-83
TROUBLESHOOTING
Temperature Indication
Normal
Thermistor Open-circuited
or PCB Defected
(Temp. for Top of Comp.: 129)
……
Temperature Displayed
Abnormal
Indication of Category Code
Indication of Temperature, etc.
1
Indoor Unit Intake
Air Temp. at
Thermistor (
o
C)
Indoor Unit
Discharge Air Temp.
at Thermistor (
o
C)
2
Indoor Unit Heat
Exchanger Liquid
Pipe Temp. (Freeze
Protection) (
o
C)
3
Outdoor Air Temp.
(
o
C)
4
Indoor Heat
Exchanger Gas
Pipe Temp. (
o
C)
5
Evaporating Temp.
at Heating (
o
C)
6
Control Information7
Discharge Gas
Temp. at the Top of
Comp. Chamber (
o
C)
8
See "1.3.1 Self-Checking of PCB's using
Remote Control Switch" in pages 1-103, 104.
(NOTE 1) During transient period such as starting time, etc.,
"- -" may be indicated for a limited time.
(NOTE 2) All the data during the check mode 2 will be
changed to "00" if a power failure occurs during
alarm indication.
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- -
or
129
Thermistor Short-circuited
or PCB Defected)
F F
or
255
(Temp. for Top of Comp.: 127)
or
127
This is an indication for internal information for the
remote control switch.
This does not have any specific meaning.
The average temperature is indicated when two
compressors are running.
(2) Contents of Check Mode 2
The latest data of the first three indoor units only connected serially are indicated when more than three
indoor units are connected to one remote control switch.
By pressing the part of “TEMP” switch, the next display is indicated, If the part of “TEMP” switch is
pressed, the previous display is indicated.
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