Service manual

ESIE03–01 Error Codes: Outdoor Units
Part 3 – Troubleshooting 3–59
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3.14 Malfunction of Current Sensor System (J2)
Remote Controller
Display
J2
Method of
Malfunction
Detection
The malfunction of current sensor is detected through the current detected with the current sensor.
Malfunction
Decision
Conditions
While in operation:
When the current detected with the current sensor is not more than a constant value.
While in stopping:
When the current detected with the current sensor is not less than a constant value.
Possible Causes
P Faulty current sensor
P Faulty outdoor unit PC board
P Disconnected compressor
Troubleshooting
Caution Be sure to turn off power switch before connecting or disconnecting the connector, or parts damage
may occur.
Restart the compressor
using the remote controller
Is "J2" displayed
on the remote
controller?
Connections OK?
NO
NO
YES
YES
Continuity OK?
NO
YES
Could result from external causes
(e.g. noise) other than malfunction.
Correct.
Replace compressor.
Replace outdoor PC board
Check compressor
terminal connections
Check continuity of
windings.