Samsung AVXTJH028EE - Page 195

Troubleshooting
Samsung Electronics 4-104
4-5-45 High Pressure Sensor Error (OPEN/SHORT)
×(Operation) (Reservation) (Blast) (Filter) ×(Defrost)
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Indoor Unit Display
Judgment Method
Special Cause
Outdoor Unit Display
■ High-pressure sensor OPEN/SHORT error determination method
1 . Identifies from when power is supplied or 2 minutes after RESET, and only when set is stopped.
2. An OPEN/SHORT error will occur if the input voltage standard range of 0.5V ~ 4.95V is exceeded.
1. Inspection Method
Did the high-pressure connector
get disconnected from the PCB?
Out of the
PCB high-pressure sensor terminals,
is there voltage between
pins 3 and 4 5V?
Replace high-pressure sensor
Is there
refrigerant inside the set?
(Please check by connecting the menu
folder gauge to
the service valve)
Refill refrigerant
after vacuum
Replace PCB
No
Please re-inspect after
connecting the connector
to the PCB
No
Yes
Yes
Yes
No
The ▼ mark is the 1st pin on the PCB.
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