High Pressure Temperature Sensor Error; Low Pressure Temperature Sensor Error; Middle Pressure Temperature Sensor Error - Samsung AM040KXMDEH/EU Service Manual

4-3-5 High pressure temperature sensor error (Open/Short) (Error Code : E291)
Low pressure temperature sensor error (Open/Short) (Error Code : E296)
Middle pressure temperature sensor error (Open/Short) (Error Code : E286)
1. High/Middle/low 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 exceeds 0.5V ~ 4.95V range.
2. How to check
Did the high/middle/low pressure
connector get disconnected from the PCB?
Is there refrigerant inside the set?
(Please check by connecting the manifold gauge to
the service valve)
high/middle/low-pressure
sensor terminals of the PCB, is the value of voltage 5V,
between pins 3 and 4? Is the value of
voltage 5V, between pins 2 and 4?
Replace high/middle/low-pressure sensor
Samsung Electronics
Yes
Yes
On the
Yes
No
Please re-inspect after connecting
the connector to the PCB.
No
Refill refrigerant after vacuum.
No
The ▼ mark is the 1st pin on the PCB.
Troubleshooting
Replace PCB.
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