Daikin VRV EMERION RXYQ-AATJA, Service Manual

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SiUS342303E Troubleshooting by Error Code
Part 6 Service Diagnosis 300
3.33 Detection of Ground Leakage by Leak Detection Circuit
Applicable
Models
All outdoor unit models
Error Code
E2
Sub code: 01, 02
Method of Error
Detection Detect leakage current in the ground leakage detection circuit and detect error on the outdoor unit
main PCB.
Error Decision
Conditions The leakage current is detected.
Supposed
Causes

Ground fault
 Improper wiring passing through the current sensor
 Temporary liquid compression or melting in compressor
Troubleshooting
YES
NO
NO
Is wiring
passing through the
current sensor (T1A)
proper?
Insulation failure of
compressor
Insulation failure of
component except
compressor
Pass proper wiring through the
sensor.
Turn OFF the power supply,
and then disconnect
compressor lead wire.
Reinstall wiring, and then turn
ON the power supply again.
NO
Replace the compressor.
YES
Replace the relevant
component.
YES
Normal (Continue operation)
The error is considered to have
resulted from temporary liquid
compression or penetration in
the compressor.
Take care of the liquid when
power is shut down over an
extended period of time due
to power failure or else.
Caution
Be sure to turn off the power switch before connecting or disconnecting
connectors, or parts may be damaged.