Troubleshooting
4-106
Samsung Electronics
4-4-63 High Pressure Standard Not Met before Air Conditioning (Inability to Re-operate)
1. Cause of problem
Is High Pressure sensor connector
accurately connected to PCB?
Replace High Pressure sensor
Is there any refrigerant leakage or
recharging problem inside the system?
(Check it through Manifold gauge)
Reconnect and check connector.
No
No
Yes
Yes
Supplement or recharge the refrigerant.
Outdoor unit display
Indoorunit display
×(Operation)
ስ
(Reservation)
ስ
(Blast)
ስ
(Filter) ×(Defrost)
Judgment Method
. Operation should be forbidden if High Pressure sensor value of the Main Unit before the pump down is
started at 2.2kg/cm²g or below for air-conditioning and 1.0kg/cm²G or less for heating for three
consecutive seconds.
(Restarting operation is not possible, and an error displayed on the indoor unit.)
Cause of problem
∙ Refrigerant leakage/fault in High Pressure sensor .
