Samsung AM072FXVAFH series Service Manual page 167

Measures of other outdoor unit error
✳✳
AM038/048/055KXWD
Outdoor unit display
Indoorunit display
Judgment Method ∙ Refer to the measures by code below.
Cause of problem
∙ Refer to the measures by code below.
1. Measures by code
Code Error
E467 COMP.1 wire unconnected error
E474 Inverter PBA1 IGBT temperature sensor error
Samsung Electronics
(cont.)
COMP.1 wire unconnected error
Inverter PBA1 IGBT temperature sensor error
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost Timer Fan
× × ◑ ◑
※ ● : ON ◑ : Flash ×: OFF
Cassette (4/Mini4 Way)
Filter/MPI Operation Defrost Timer
◑ × ◑ ◑
Measures
Check the connection of COMP and Inverter PBA
(If there is no abnormality, replace the PBA)
Replace Inverter PBA
Wall-mounted (NeoForte)
Filter 18℃ 21℃ Turbo
◑ × × ◑
Troubleshooting
24℃ 27℃
◑ ◑
4-71