Comp Down By High Pressure Protection Control - Samsung mini DVM Series Service Manual

Troubleshooting
I

: Comp Down by High Pressure Protection Control

Outdoor unit display
Indoor unit display
Judgment method
Causes
1. Check Method
11-14
(Operation)
Detect when the high pressure sensor value is over 41kg/cm
<Cooling operation>
Outdoor unit fan motor error (lock, defect) / Motor Driver defect or Wire short / Contamination of
the outdoor unit heat exchanger / SSR defect for Fan control / Service Valve closeness /
Excess amount of refrigerant
<Heating operation>
Indoor unit fan motor error (lock, defect) /Fan Motor Capacitor defect or Wire short / Service
Valve closeness / Excess amount of refrigerant
Test operation
Is the service valve opened all?
Yes
Is the measuring value of S-net same as
the value of the Manifold Gauge?
Yes
Are the indoor unit and outdoor unit
EEV operated normally?
Yes
Is there any clogged part in a piping
(Filter, etc.)?
No
Is the outdoor fan
during cooling operation or the
indoor fan during heating operation
operated normally?
Yes
Check the amount of refrigerant
(Timer) (Fan) (Filter)
No
No
No
Yes
No
(Defrost)
2
Connect the S-net and Manifold
Gauge (Requisite)
Open the service valve.
Replace the high pressure
sensor.
Check the relevant EEV.
Check the pipe.
Replace the relevant parts
(Motor or Fan.)
Samsung Electronics