Samsung AM080FX A Series User Manual

Samsung Electronics 180
Troubleshooting
4-3-24 Low Pressure sensor error (Open/Short)
1. 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 range of 0.5V ~ 4.95V is exceeded.
2. Inspection Method
Replace Low Pressure sensor
Please re-inspect after connecting
the connector to the PBA
No
Yes
Low pressure
sensor connector (CN41)
connected to PBA?
Refill refrigerant after vacuum
No
Yes
Is there refrigerant inside the set?
(Please check by connecting the Manifold gauge
to the service valve)
Replace PBA
No
Yes
Low pressure sensor terminal of PBA : Is the
voltage between 3 and 4 pins 5V?
The ▼ mark is the 1st pin on the PBA.
Outdoor unit
display
Indoorunit
display
Duct, Cassette (1/2 Way),Console, Celing Cassette (4/Mini4 Way) Wall-mounted (NeoForte)
Operation Defrost Timer Fan Filter/MPI Operation Defrost Timer Filter Operation Timer Turbo
× × ◑ ◑ ◑ × ◑ ◑ ◑ ● ◑ ◑
※ ● : ON ◑ : Flash ×: OFF
Judgment
Method
∙ Detect according to temperature detected with the low pressure sensor.
Cause of
problem
∙ Disconnection or breakdown of relevant sensor.
4-3 Appropriate Measures for Different Symptom (cont.)

Samsung AM080FX A Series Specifications

General

Brand	Samsung
Model	AM080FX A Series
Category	Air Conditioner
Language	English