E416 : Suspension Of Starting Due To Compressure Discharge Temperature Sensor/Top Temperature Sensor - Samsung AM080 XV Series Service Manual

4-3-33 : Suspension of starting due to Compressor discharge temperature sensor
/ Top temperature sensor
Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost
Indoorunit
display
×
※ ●: ON ◑: Flash ×: OFF
Judgment
∙ When value of Compressor discharge temperature sensor / Top temperature sensor is checked at 120
Method
∙ Refrigerant shortage
∙ Electronic expansion valve is blocked.
∙ Service valve blocked
Cause of
∙ Defective discharge temperature sensor
problem
∙ TOP temperature sensor defective
∙ Blocked pipe and defective
∙ Discharge check valve leaking on outdoor unit that is off
1. Cause of problem
Compressor discharge Temperature sensor/
Top temperature sensor?
Are all service valves open?
and Outdoor Unit EEV normally
any blockage inside the pipe?
Check the refrigerant amount.
Samsung Electronics
Timer Fan Filter/MPI Operation Defrost
× ◑ ◑
Is the resistance
value normal for the
(Refer to "NOTE 1")
Yes
Auto Trial Operation
Yes
Are the Indoor Unit
operating?
Yes
Are there
(filter etc.)
No
Cassette (4/Mini4 Way)
◑ × ◑
No
Replace Compressor discharge temperat
No
No
Yes
Resistance value
Resistance value
measure part
measure part
TOP1 TOP2
TOP1 : CN43 (3, 4)
TOP2 : CN45 (5, 6)
DIS1 : CN43 (1, 2)
DIS2 : CN45 (3, 4)
Wall-mounted (NeoForte)
Timer Filter Operation
◑ ◑ ●
-ure sensor / Top temperature sensor
Connect S-net and Manifold Gauge.
(essential requirement)
Open the Service Valve
Check the relevant EEV
Pipe inspection
NOTE1
Temperature(°C)
130
120
100
80
60
25
20
10
0
Troubleshooting
Timer Turbo
◑ ◑
or more
Resistance(KΩ)
8.9
11.2
18.5
32.0
59.0
200.0
242.0
362.0
553.0
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