Detection Of Ground Leakage By Leak Detection Circuit - Daikin REYQ-XA Service Manual

Troubleshooting by Error Code

3.31 Detection of Ground Leakage by Leak Detection Circuit

E2
Error Code
Sub code: 01-03
Applicable
All outdoor unit models
Models
Method of Error
Detect leakage current in the ground leakage detection circuit and detect error on the outdoor unit
Detection main PCB.
Error Decision The leakage current is detected.
Conditions
Supposed
Causes
Troubleshooting
291
Ground fault
Improper wiring passing through the current sensor
Temporary liquid compression or melting in compressor
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
compressor lead wire.
Is wiring
passing through the
current sensor (T1A)
proper?
YES
Insulation failure of
compressor
NO
Insulation failure
of component except
compressor
NO
Reinstall wiring, and then turn
ON the power supply again.
NO
YES
YES
SiUS371901E
Pass proper wiring through the
sensor.
Replace the compressor (M1C).
Replace the relevant
component.
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.
Service Diagnosis