6-3
■ EC01 : Trouble on the thermistor related part of indoor unit.
• EC01 : Trouble on the room thermistor related part of indoor unit.
- E1 of outdoor unit PCB 7-segment
- Reservation lamp of wireless receiving board is flickering with 1 Hz.
- Action items when “*1” displays on the wired remote controller.
✽ “*” stands for the indoor unit address.
■ EC02 : Trouble on the pipe thermistor related part of indoor unit.
- E5 of outdoor unit PCB 7-segment.
- Reservation lamp of wireless receiving board is flickering with 1 Hz.
- Action items when “*5” displays on the wired remote controller.
Samsung Electronics
Trouble Shooting
Indoor the indoor unit thermistor at CN8
NO
YES
YES
Replace the indoor unit PCB
NO
Is the vlotage across the thermistor 4.9V and
tabove or 0.5V and lower?
Indoor unit thermistor installed at CN8?
Check point :
- Defect of indoor unit
- Indoor unit thermistor defect
Replace the thermistor
Install the indoor unit pipe thermistor at CN8
NO
YES
YES
Replace the indoor unit
PCB
NO
Is the voltage across thermistor 4.9V and higher
or 0.5V lower?
Is the indoor unit pipe thermistor installed at CN8?
Check point :
- Indoor unit PCB defect
- Indoor unit pipe thermistor defect
Replace the thermistor
Duct-ADH1800E-3 4/12/00 5:47 PM Page 6-3
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