Samsung AM072BXV Series - Case Study - E206 (Internal Communication Error of the Outdoor Unit C-Box)

Troubleshooting
Samsung Electronics 161
4-4-7 Case study – E206 (Internal communication error of the outdoor unit C-box)
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 24℃ 27℃
× × ◑ ◑ × × ◑ ◑ × × × ◑ ◑ ×
※ ● : ON ◑ : Flash ×: OFF
Judgment
Method
• PBA does not respond to the invoked Main PBA
Cause of
problem
• C-Box internal Inverter PBA, Fan PBA, Hub PBA defective
Possibility
1) Poor connection of communication wiring and connector
2) Defect of related electric component
* Reference
E206-C001 : MAIN PBA communication error / E206-C002 : FAN PBA communication error
E206-C003 : INV1 PBA communication error / E206-C004 : INV2 PBA communication error
Main PBA FAN PBA Inverter PBA
4-4 Case study for trouble shoots (cont.)