Current Leakage Detection - Daikin RXYQ-TA Series Service Manual

Troubleshooting by Error Code

3.27 Current Leakage Detection

E2
Error Code
Sub code: -01 to -03
Applicable
All outdoor unit models
Models
Method of Error
Current leakage is detected in the earth leakage detection circuit. Error is detected on the outdoor
Detection unit main PCB.
Error Decision When leakage current is detected.
Conditions
Supposed
Causes
Troubleshooting
213
Earth fault
Defective wiring with the current sensor
Temporary liquid back or refrigerant stagnation
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Turn OFF the power supply,
and then disconnect the
compressor lead wire.
Check
if the
connection to the
current sensor (T1A) is
correctly wired.
YES
Defective compressor
insulation
NO
Defective
insulation of parts
other than the
compressor
NO
Reconnect the wires, and
then reconnect the unit to the
power supply.
NO
YES
YES
SiUS341615E
Correct the wiring.
Replace the compressor.
RXYQ72-120TA: M1C
RXYQ144/168TA: M1C, M2C
Replace the corresponding
parts.
Normal
(Keep operating)
It is possibly caused by
temporary oil return or
refrigerant residue.
(Perform maintenance
during long-term
shutdown such as a
power outage.)
Service Diagnosis