Samsung AM080KXMDFH/TC - Page 84

Troubleshooting
4-42 Samsung Electronics
■ Compressor operation stop due to low pressure protection control or refrigerant leakage.
(E-410)
Auto Trial Operation
Are all service valves
open?
Connect S -net and Manifold Gauge.
(essential requirement)
Yes
No
Check the relevant EEV
Is the S -net
estimated value and the
Manifold Gauge
value in range?
Are the Indoor Unit and
Outdoor Unit EEV
normally operating?
Yes
Open the Service Valve
Replace Low Pressure sensor
No
No
Yes
Are there any blockage
inside the pipe?
(filter etc.)
No
Yes
Is there any leakage in
the Liquid Pipe Valve or
the discharge check
valve of the not-go-end
Outdoor Unit when only
some Outdoor Units are
operating?
No
Pipe inspection
Replace Low Pressure sensor
Yes
Check the refrigerant amount.