Samsung AVXC1H022 series Service Manual page 259

Troubleshooting
I
: Compressor Down by Compressor Emission Temperature Sensor
Outdoor unit display
Indoor unit display
Judgment method
Causes
1. Check Method
sensor resistance normal?(Refer to
liquid valve of the outdoor unit on the stop side
9-15
(Operation)
Detect when the compressor emission temperature sensor value is over 135°C
Insufficient refrigerant / Indoor and outdoor EV clogging / Service valve clogging / Emission tem-
perature sensor defect / Pipe and filter clogging / Liquid EEV break / Liquid Tube Valve break /
Compressor Discharge Check Valve leakage of the outdoor unit on the stop side
Is the compressor emission
Yes
Test operation
Is the service valve opened all?
Yes
Are the indoor unit and outdoor unit
EEV operated normally?
Yes
Is there any clogged part in a piping
(Filter, etc.)?
No
Is there any leakage on the
or the emission Check Valve during some
outdoor units are operated only?
No
Check the amount of refrigerant
(Timer) (Fan) (Filter)
No
)
No
No
Yes
Yes
(Defrost)
Replace the emission
temperature sensor
Connect the S-net and Manifold
Gauge(Requisite)
Open the service valve.
Check the relevant EEV.
Check the pipe.
Replace the relevant parts.
Samsung Electronics