Troubleshooting
4-80
Samsung Electronics
4-3-42
: Comp. Down due to Discharge Temperature Sensor of a Compressor
Indoor unit display
Cause of problem
×
(Operation)
◑
(Timer)
◑
(Fan)
◑
(Filter)
×
(Defrost)
• Insufficient refrigerant
• Clogged indoor & outdoor electronically operated valves
• Clogged service valve
• Defective discharge temperature sensor
• clogged piping and/or filter
• Liquid EEV breakdown
• Liquid Tube valve breakdown
• Leakage in discharge check valve of the compressor in the stop-side outdoor unit
Criteria
• Detect when the value of compressor’s discharge temperature sensor is over 275˚F/135˚C
Outdoor unit display
Is the discharge
sensor resistance of the
compressor normal?
(refer to E251)
Test operation
Are all service valves open?
Does indoor/outdoor
EEV operate well?
Is there any
clogged part in the piping
(ex.Filter)?
Check the amount
of refrigerant
Replace discharge temperature sensor
Open the service valve
Check the relevant EEV
Check the piping
Connect S-net and Manifold gauge
(imperative)
No
No
No
Yes
Yes
Yes
Yes
1. How to check
Summary of Contents for AVXCSH023/032/040CE
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Page 232: ...0 02 Samsung Electronics 5 20...
Page 250: ...0 02 Samsung Electronics 5 38...
Page 262: ...0 02 Samsung Electronics 5 50...
Page 263: ...5 51 Samsung Electronics 5 2 Outdoor Unit 5 2 1 RVXVHT075 100FE RD075 100VHXFA...
Page 264: ...Exploded Views and Parts List Samsung Electronics 5 52 RVXVHT075 100FE RD075 100VHXFA cont...
Page 267: ...Exploded Views and Parts List 5 55 Samsung Electronics 5 2 2 RVXVHT125FE RD125VHXFA...
Page 268: ...Exploded Views and Parts List Samsung Electronics 5 56 RVXVHT125FE RD125VHXFA cont...
Page 279: ...Exploded Views and Parts List 5 67 Samsung Electronics 5 2 5 RD040 050MHXCA...
Page 285: ...PCB Diagram 6 5 Samsung Electronics 6 1 4 Duct type Slim MAIN PCB...
Page 288: ...0 02 Samsung Electronics 6 8...
Page 289: ...PCB Diagram 6 9 Samsung Electronics 6 1 5 Duct type MSP MAIN PCB...
Page 291: ...PCB Diagram 6 11 Samsung Electronics 6 1 6 Duct type BIG MAIN PCB...
Page 295: ...PCB Diagram 6 15 Samsung Electronics 6 1 7 Wall mounted type Neo Forte without EEV MAIN PCB...
Page 298: ...0 02 Samsung Electronics 6 18...
Page 299: ...PCB Diagram 6 19 Samsung Electronics 6 1 8 Wall mounted type Neo Forte with EEV MAIN...
Page 302: ...0 02 Samsung Electronics 6 22...
Page 303: ...PCB Diagram 6 23 Samsung Electronics 6 1 9 Wall mounted type Vivace MAIN PCB...
Page 332: ...0 02 Samsung Electronics 7 16...