Comp. Down Due To High Pressure Protection Control - Samsung AM006JNFDCH/AA Service Manual

4-4-54

: Comp. Down due to High Pressure Protection Control

Outdoor unit display
Indoorunit display × ( Operation )
Judgment Method
Value of the high pressure sensor is detected at 40kg/cm² or more
<Cooling Operation>
∙ Outdoor unit fan motor problem (constrained, defective)
∙ Motor driver defective or wire is cut
∙ Outdoor heat exchanger is contaminated.
∙ Service valve locked/Fill refrigerant
Cause of problem
<Heating Operation>
∙ Outdoor unit fan motor problem (constrained, defective)
∙ Motor driver defective or wire is cut
∙ Service valve locked/Excessive refrigerant
1. Cause of problem
Are all service valves open?
estimated value and the Manifold
and Outdoor Unit EEV normally
Are there any blockage inside
operating normally for the cooling and the Indoor
Fan operating normally for
Check the refrigerant amount.
Samsung Electronics
( Reservation )
Commissioning
Yes
Is the S-net
Gauge value in range?
Yes
Are the Indoor Unit
operating?
Yes
the pipe? (filter etc.)
No
Are the Outdoor Fan
the heating?
Yes
( Blast ) ( Filter ) × ( Defrost )
No
No
No
Yes
No
Troubleshooting
Connect S-net and Manifold Gauge.
(essential requirement)
Open the Service Valve
Replace High Pressure sensor
Check the relevant EEV
Pipe inspection
Replace relevant component
(motor or fan)
4-89