Samsung AM080 XV Series Service Manual page 170

Troubleshooting
Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost
Indoorunit
display
×
※ ●: ON ◑: Flash ×: OFF
Judgment
• Value of the high pressure sensor is detected at 41kg/cm² or more
Method
<Cooling operation>
∙ Overheat of supplying water
∙ Shortage of supplying water
∙ Outdoor heat exchanger is contaminated.
Cause of
∙ Service valve locked/Fill refrigerant
problem
<Heating operation>
∙ Indoor unit fan motor problem(constrained, defective)
∙ Service valve locked/Excessive refrigerant
1. Cause of problem
Are all service valves open?
estimated value and the
Manifold Gauge value in range?
and Outdoor Unit EEV normally
Are there any blockage inside
When cooling operation,
water temperature, quantity, or heating
operation, indoor fan operates
Check the refrigerant amount.
4-50
( Water Cooled )
Timer Fan Filter/MPI Operation Defrost
× ◑ ◑
Auto Trial Operation
Yes
Is the S-net
Yes
Are the Indoor Unit
operating?
Yes
the pipe? (filter etc.)
No
normally do?
Yes
Cassette (4/Mini4 Way)
◑ × ◑
No
No
No
Yes
No
Wall-mounted (NeoForte)
Timer Filter Operation Timer
◑ ◑ ●
Connect S-net and Manifold Gauge.
(essential requirement)
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)
Samsung Electronics
Turbo
◑ ◑