95
16.4.5 H16 (Outdoor Current Transformer)
Malfunction Decision Conditions
An input current, detected by Current Transformer CT, is below threshold value when the compressor is
operating at certain frequency value for 3 minutes.
Malfunction Caused
Lack of gas
Broken CT (current transformer)
Broken Outdoor PCB
Troubleshooting
Refer to Service Manual Technical Graph
for Temp vs Current and Pressure.
Suction pressure and running current is
normal.
Running current is much too low and
suction pressure is much too high.
In forced cooling, check suction pressure
versus running current.
Running current and suction pressure is
very low.
When abnormality indication starts again.
Check for gas leaking source; Repair
or replace defected part(s).
Capillary tube/expansion valve
blockage; Replace defected part(s).
Compressor Lack Compression.
Replace Compressor.
Check & replace defected CT.
For safety reason and to
prevent component
breakdown, always switch off
the power before remove and
connect the component.
Caution