Internal Pba Communication Error Of The Outdoor Unit C-Box - Samsung AM072BXV Series Service Manual

Troubleshooting
4-3 Appropriate Measures for Different Symptom (cont.)
4-3-7

Internal PBA Communication error of the Outdoor Unit C-Box

Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation
Indoorunit
display
×
※ ● : ON ◑ : Flash ×: OFF
Judgment
• PBA does not respond to the invoked Main PBA
Method
Cause of
• C-Box internal Inverter PBA, Fan PBA, Hub PBA, Water Hub PBA defective.
problem
1. Cause of problem
E206 C001
Does E205 occur after 1 minute?
When happen, refer to how to check E205.
E206 C002
PBA CN13 connector and EMI PBA
CN23 connector accurately
Does INVERETER PBA
LD22 (LED) blink?
Is INVERETER PBA CN31, CN91
connector and FAN PBA CN501 connector
accurately connected?
Replace the FAN PBA
E206 C003/C004
C003 : Replace the INVERTER PBA 1
C004 : Replace the INVERTER PBA 2
C005 : Replace the Water Hub PBA
Samsung Electronics
(C001 ~ C005)
- some boards of outdoor unit are not communicating
Defrost Timer Fan Filter/MPI Operation
×
◑ ◑
Yes
Is INVERETER
connected?
Yes
Yes
Yes
Cassette (4/Mini4 Way)
Defrost Timer Filter Operation
× ×
◑
No
No
No
No
Wall-mounted (NeoForte)
Timer
× ×
◑
HUB PBA replace if E206 C001 is continued..
Check the wire connection status.
Replace the NVERETER PBA.
Check the wire connection status.
Turbo
◑ ◑
87