Troubleshooting
Samsung Electronics
113
4-3-32
: Suspension of starting due to Compressor discharge temperature sensor / Top temperature sensor
1. Cause of problem
Is the resistance
value normal for the
Compressor discharge Temperature sensor/
Top temperature sensor?
(Refer to “NOTE 1”)
Auto Trial Operation
Are all service valves open?
Are the Indoor Unit
and Outdoor Unit EEV normally
operating?
Are there
any blockage inside the pipe?
(filter etc.)
Check the refrigerant amount.
Replace Compressor discharge temperat
-ure sensor / Top temperature sensor
Open the Service Valve
Check the relevant EEV
Pipe inspection
Connect S-net and Manifold Gauge.
(essential requirement)
No
No
No
Yes
Yes
Yes
Yes
No
NOTE1
TOP1 CN43(3,4)
TOP2 CN45(5,6)
DIS1 CN43(1,2)
DIS2 CN45(3,4)
TOP1
TOP2
Resistance value
measure part
Resistance value
measure part
Temperature(°C)
Resistance(KΩ)
130
120
100
80
60
25
20
10
0
8.9
11.2
18.5
32.0
59.0
200.0
242.0
362.0
553.0
Outdoor unit
display
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing
Cassette (4/Mini4 Way)
Wall-mounted (NeoForte)
Operation Defrost
Timer Fan Filter/MPI Operation Defrost
Timer Filter Operation Timer
Turbo
×
×
◑
◑
◑
×
◑
◑
◑
●
◑
◑
※ ●
: ON
◑
: Flash ×: OFF
Judgment
Method
• When value of Compressor discharge temperature sensor / Top temperature sensor is checked at 120
℃
or more
Cause of
problem
• Refrigerant shortage
• Electronic expansion valve is blocked.
• Service valve blocked
• Defective discharge temperature sensor
• TOP temperature sensor defective
• Blocked pipe and defective
• Discharge check valve leaking on outdoor unit that is off
4-3 Appropriate Measures for Different Symptom (cont.)
