Samsung DVM S ECO BIG Series Service Manual page 84

Troubleshooting
■ Compressor operation stop due to low pressure protection control or refrigerant leakage.
(E-410)
Auto Trial Operation
Are all service valves
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.)
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?
Check the refrigerant amount.
4-42
open?
Yes
Yes
Yes
No
No
Connect S -net and Manifold Gauge.
(essential requirement)
No
Open the Service Valve
No
Replace Low Pressure sensor
No
Check the relevant EEV
Yes
Yes
Replace Low Pressure sensor
Pipe inspection
Samsung Electronics