■ EC07 : When the trouble is found in the communication related part between outdoor
unit pipe thermistor.
- ED of 7-segment of outdoor unit PCB.
- Reservation lamp and filter lamp of wireless receiving board is flickering with 1Hz.
- Action item when “D” displays on the wired remote controller.
6-8
Samsung Electronics
Trouble Shooting
Check point :
- Indoor unit pipe thermistor available or not
- Indoor unit PCB defect
✽ “*” stands for the indoor unit address.
NO
NO
YES
YES
Connect correctly and check.
Replace the outdoor PCB
Is indoor pipe thermistor installed at CN41?
Is the voltage across the thermistor 4.9V and higher
or 0.5V and lower?
Replace the thermistor
Duct-ADH1800E-3 4/12/00 5:47 PM Page 6-8
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