Troubleshooting
Samsung Electronics
4-122
4-4-28
: High voltage protection compressor stopped
Reactions from S-net and vacuum?
The indoor/outdoor EEV operates normally?
Clogging in the pipe? (ex-filter)
Check the amount of coolant.
Test operation
Open the sub valve.
Replace the high pressure sensor.
Check the EEV.
Check the pipeline.
Replace the parts.
(Electrical or fan)
Yes
Yes
Yes
No
Yes
All the sub valves open?
Connect S-net to vacuum. (Forceful)
No
No
No
Yes
No
While the AC or heater is on,
the indoor/outdoor
fan operates normally?
1. How to check
Outdoor unit display
Indoor unit display
×(Operation)
◑
(Timer)
◑
(Fan)
◑
(Filter) ×(Defrost)
Criteria
• The high pressure sensor reading approaches 38KG/CM2.
Cause of problem
<AC in operation>
• Check electrical installation of the outdoor machine.
• Polluted outdoor machine heat exchanger.
• Closed sub valve./Add some coolant.
• Check for clogging in the suction area of the indoor
machine.
• Electrical motor is weak or cut off cable.
• Fan control SSR inefficient.
<Heater in operation>
• Electrical installation of the outdoor machine.
• Closed sub valve./Add some coolant.
• Electrical motor is weak or cut off cable.
Summary of Contents for AVXCSH023/032/040CE
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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...