5-13
5
F12 Compressor inlet Suction Temperature Sensor (TS) Trouble
Error Detection Method
Error Diagnosis
It is judged an error when open circuit or short circuit.
1.
2.
Sensor connector is connected to PC board properly.1-1
1-2
Reconnect and check
Yes
No
1
Sensor
2 Outdoor
control
PC board
Replace PC board because of outdoor control PC board failure.2-1
Resistance between sockets is infinity or0 ohm.1-2
Replace sensor
2-1
Yes
No
F31 Outdoor Unit Nonvolatile Memory (EEPROM) Trouble
Error Detection Method
Error Diagnosis
It is judged an error based on the criteria listed below.
When power initially turned ON for the first time, nonvolatile memory (EEPROM) is not installed.
Read values after writing onto nonvolatile memory (EEPROM) is inconsistent.
•
•
1.
2.
Does EEPROM exist on the control PC board?1-1
1-2
Install EEPROM
Yes
No
1
PC board
Incorrect EEPROM
Replace with correct EEPROM.
1-3
Is EEPROM installed properly?
(Check: Bent IC pin or incorrect installation, etc.)
1-2
1-3
Correct
Yes
No
SM830276-00_欧州向け R32シングル TD＆SM.indb 13 19/02/28 13:29:25
To Next Page
Loading...
