Samsung AM FXVAF Series Installation Manual page 102

Inspection and trial operation
Measure to take when E505, E506 error occurs
- See the instructions on Key operation modes.
No.
sensors on outdoor units greater
each outdoor unit opened?
Are the pressure sensor connectors
properly connected to the PBA?
Is the actual pressure* different from
the value on the pressure sensor?
Perform Auto Trial Operation again
102
Yes
Yes
Yes
Yes
*
saturation pressure for the outdoor air temperature or
connecting a manifold gauge.
No.
No.
Open the valve.
No.
Take corrective measures.
No.
Yes
Replace the pressure sensor.