Ground Leakage By Leak Detection Pcb Assy - Daikin VRV-WIII RWEYQ72PTJU Service Manual

Troubleshooting by Indication on the Remote Controller

3.18 Ground Leakage by Leak Detection PCB Assy

E2
Error Code
Applicable
RWEYQ72P, 84P
Models
Method of Error Failure is to be detected by using leak detection PCB assy.
Detection
Error Decision
Leakage is detected under the conditions condensing of the scope of high pressure switch
operation.
Conditions
 Defective of compressor
Supposed
Causes
Troubleshooting
180
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.
Check
the compressor
for insulation using a
megger tester.
Not fault
Check
the whole
product for insulation
resistance using a
megger
tester.
Not fault
Check
the connectors
of the high pressure
switch line for any
disconnection.
Connected
Check
the ground
leakage detection PCB
(∗1) for any
broken
No
Reinstall all wirings.
A
Insulation fault
Insulation fault
Disconnected
YES
SiUS30-1301
Replace the
defective part.
Replace the
defective part.
Securely connect
the connectors.
Replace the
ground leakage
detection PCB
(∗1).
Service Diagnosis