Troubleshooting by Remote Controller Si20-701_B
295
Troubleshooting
Note:
∗1. Electronic thermal switch detecting value
Model Cool/Heat ∗2 Detection Value
RZY71L Cool 20.5~22.0A
Heat 24.0A
RZY100L Cool 20.1~23.0A
Heat 21.8~23.0A
RZY125L Cool 21.0~23.7A
Heat 21.3~23.7A
Is
secondary
current of inverter
îš…îš…A (see list below) in
each phase?
(∗1)
YES
NO
NO
OK
Compressor
overload.
Inspect
compressor and
refrigerant
system.
Is
inverter
output voltage
same in all 3
phases?
Check
main circuit parts.
YES
Inspect
compressor.
NG
Correct the
wiring.
Defective main
circuit parts.
Defective
inverter.
Disconnect compressor
inverter.
(Note) Measure current
in U, V and W within 30
seconds using clamp
meter.
(Note) Within ±5%
between phases U and
V, between V and W
and between W and U.
(Note) Check for
element cracking, loose
connections, connector
disconnection and
damaged parts.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
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