Troubleshooting
4-54
Samsung Electronics
Is the S-net
estimated value and the
Manifold Gauge value in range?
Are the Indoor Unit
and Outdoor Unit EEV normally
operating?
Are there any blockage inside
the pipe? (filter etc.)
Check the refrigerant amount.
When cooling operation,
water temperature, quantity, or heating
operation, indoor fan operates
normally do?
Auto Trial Operation
Open the Service Valve
Replace High Pressure sensor
Check the relevant EEV
Pipe inspection
Check the water pipes or Replace
relevant component(motor or fan)
Yes
Yes
Yes
No
Yes
Are all service valves open?
Connect S-net and Manifold Gauge.
(essential requirement)
No
No
No
Yes
No
1. Cause of problem
Outdoor unit
display
( Water Cooled )
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
•
Value of the high pressure sensor is detected at 41kg/cm² or more
Cause of
problem
<Cooling operation>
∙ Overheat of supplying water
∙ Shortage of supplying water
∙ Outdoor heat exchanger is contaminated.
∙ Service valve locked/Fill refrigerant
<Heating operation>
∙ Indoor unit fan motor problem(constrained, defective)
∙ Service valve locked/Excessive refrigerant