Case Study - E201 (Communication Error Between Indoor & Outdoor Unit) - Samsung AM072BXV Series Service Manual

Troubleshooting
4-4 Case study for trouble shoots (cont.)
4-4-5 Case study – E201 (Communication error between indoor & outdoor unit)
Outdoor unit
display
Duct, Cassette (1/2 Way),Console, Celing
Operation Defrost Timer Fan
Indoorunit
display
×
※ ● : ON ◑ : Flash ×: OFF
Judgment
• Communication error between indoor and outdoor units.
Method
Cause of
• Refer to the judgment method below.
problem
Indoor unit's quantity installed ≠ IDU quantity setting value in
Outdoor unit's main PBA
F1,F2 wire disconnection
Communication IC faulty
Duplicated address setting(E108 will be shown as well)
Cause
- Problem : System stop by E201 intermittently
- Condition : System was ok when commissioning
Samsung Electronics
Filter/
Operation Defrost Timer Filter Operation Timer Turbo 24℃
MPI
× ◑ ◑ ×
Cause
Cassette (4/Mini4 Way)
× ◑ ◑ ×
Adjust the setting
Check the F1,F2 wire
Check the IC
Change the indoor unit's address
Cause
Operation
Wall-mounted (NeoForte)
× × ◑
Solution
Defrost Timer
X
◑ ◑
27℃
◑ ×
Filter
X
158