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Trouble Diagnosis
3. W-3WAY ECO-i Alarm Codes
1
2
3
4
5
6
7
H08, H27 Alarm
Alarm code H08, H27
Alarm meaning
H08: Trouble (open circuit) with the oil sensor (connection) at compressor 1
H27: Trouble (open circuit) with the oil sensor (connection) at compressor 2
This alarm occurs when a connector connection (pins 1 and 2 for compressor 1, pins 4
and 5 for compressor 2, and pins 7 and 8 for compressor 3) is open.
Alarm conditions
Probable cause Disconnected connector.
Check Check that the connector is securely connected.
Correction (1)
(2)
Example
Notes
—
Connect the connector.
Correct the connection at connector pins 4 and 5.
SM830183-003WAYECO-i.indb15SM830183-003WAYECO-i.indb15 2010/03/0311:14:542010/03/0311:14:54