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4-4-30
: Dischage temperature sensor error
Outdoor unit display
Indoor unit display
Criteria
Cause of problem
1. How to check
The sensor's resistance normal?
(Refer to E251.)
Test operation
All the sub valves open?
The outdoor/indoor EEV operates normally?
Clogging in the pipeline?
(ex-filter)
Check the amount of coolant.
Samsung Electronics
×(Operation)
(Timer)
(Fan)
• The compressor temperature above 110°C.
• Insufficient coolant.
• Clogging in the outdoor machine's solenoid valve.
• Clogging in the sub valve.
• Malfunctioning exhaust gas temp sensor.
• Clogging in the pipeline and the filter.
• Liquid EEV damaged.
Yes
Yes
Yes
No
(Filter)
(Defrost)
No
Check the amount of coolant.
Connect S-net to vacuum.
(Forceful)
No
Open the sub valve.
No
Check the EEV.
No
Check the pipeline.
Troubleshooting
4-124
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