Samsung MH026FNCA Service Manual page 79

Troubleshooting
Q1 Indoor units address SW setting correct, but outdoor unit's PCB displayed E201 Error Code.
Indoor unit's sub PCB address SW or sub PCB is
Analysis
connected by mistake.
Check to indoor unit's sub PCB wire connecting
Step 1
condition.(misconnecting or Sub PCB is out of order)
Step 2 Address setting mode change to auto address setting.
Step 3 Following auto address setting steps.
Manual Address setting is Option in FJM PLUS A.
Guidance
But we solved problem like this situation, with auto address setting.
- Auto address setting
Q1 When the pipe checking operation is finished, outdoor sub PCB display E190 Error code.
Outdoor unit fails to search indoor units or to check
Analysis
indoor address.
Whether The gas and liquid pipes are crossed with
Step 1
each other, check to connecting.
Check to outdoor unit's EEV coil being connected in
Step 2
proper location.
Check to indoor unit's sensor being connected in
Step 3
proper location.
During the pipe checking operation , system check temperature change of indoor Heat exchanger.In case, indoor
Guidance
sensor defect, EEV coil connector detach, malfunction of EEV, Leakage of Refrigerant, and etc can make this case.
- Address setting another case
Q1 When the pipe checking operation is finished, outdoor sub PCB display E190 Error code.
Outdoor unit fails to search indoor units or to check
Analysis
indoor address.
Whether The gas and liquid pipes are crossed with
Step 1
each other, check to connecting.
Check to outdoor unit's EEV coil being connected in
Step 2
proper location.
Check to indoor unit's sensor being connected in
Step 3
proper location.
During the pipe checking operation , system check temperature change of indoor Heat exchanger.In case, indoor
Guidance
sensor defect, EEV coil connector detach, malfunction of EEV, Leakage of Refrigerant, and etc can make this case.
9-9
Contents
Check point
Contents
Check point
Contents
Check point
Remarks
Indoor
Sub PCB
Remarks
The pipe checking operation
Pipe connecting
EEV Coil
Indoor sensor
Remarks
The pipe checking operation
Pipe connecting
EEV Coil
Indoor sensor
Samsung Electronics