Samsung Electronics 158
Troubleshooting
4-4-5 Case study – E201 (Communication error between indoor & outdoor unit)
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
• Communication error between indoor and outdoor units.
Cause of
problem
• Refer to the judgment method below.
Cause Solution
Outdoor unit’s main PBA
Adjust the setting
F1,F2 wire disconnection Check the F1,F2 wire
Communication IC faulty Check the IC
Duplicated address setting(E108 will be shown as well) Change the indoor unit’s address
Cause Cause
- Problem : System stop by E201 intermittently
- Condition : System was ok when commissioning
Operation Defrost Timer Filter
X
◑ ◑
X
4-4 Case study for trouble shoots (cont.)
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