Troubleshooting
Samsung Electronics
4-77
4-3-39
: Comp. Down due to a Protective Control of High pressure
Indoor unit display
Cause of problem
×
(Operation)
◑
(Timer)
◑
(Fan)
◑
(Filter)
×
(Defrost)
<During cooling operation>
• Problem with Outdoor unit fan motor (stall, defect)
•Motor driver defect or wire-breaking
• Outdoor heat exchanger contamination
• Defective SSR for fan control
• Locked service valve/excessive refrigerant
<During heating operation>
• Problem with Outdoor unit fan motor (stall, defect)
• Defective fan motor capacitor or wire-breaking
• Locked service valve/excessive refrigerant
Criteria
• Detect when the value of high pressure sensor is over 4.0MPa
Outdoor unit display
Do the values of S-net and
Manifold gauge correspond?
Does indoor/outdoor EEV
operate well?
Is there any clogged place in
the piping (ex. filter)?
Check the amount of refrigerant
Test operation
Open the service valve
Replace a high pressure sensor
Check the relevant EEV
Check the piping
Replace the relevant components
(motor or fan)
Yes
Yes
Yes
No
Yes
Are service valves open?
Connect S-net and Manifold gauge
(imperative)
No
No
No
Yes
No
1. How to check
During cooling operation,
does an outdoor fan, or indoor fan in case
of heating fan operate well?
Summary of Contents for AVXC4H052/072/100/110/145CE
Page 114: ...0 02 Samsung Electronics 4 30 ...
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 ...