Daewoo DSB-071AH, Руководство по обслуживанию, Страница: 39 / 131

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Self-Diagnostic Function
The control will contain diagnostic test to verify the integrity of the system.
(1)Error Code Display Pattern
1
ON LAMP: Blink
Self Diagnostic Function Description
1. Sensor Error
Open OR Short circuit of Sensors, Room, Indoor Coil Sensor and Outdoor Coil Sensor
Open : Micom, Input Voltage 0~0.3V, Short: Micom, Input Voltage 4.7~5.0V
2. Compressor Error
At the start operation, the Compressor is ON and 5 Minutes later, the Temperature change value of Indoor
Coil is below +/-2°C.
• Emergency Mode Operation detect only
3. 4 Way Valve Error
At the start operation, the Compressor is ON and then.
Indoor Coil Temperature goes up to 2°C in Cooling Operation Mode
Indoor Coil Temperature goes down to 2°C in Heation Operation Mode
LED BLINK PATTERN CASE NOTE
Room Sensor open or Short • Continuously woorking to fix room
temperature 18°C in heating mode.
• Continuously woorking to fix room
temperature 32°C in cooling mode
• I/D coil sensor open or short Do not woorking
1 times blink • O/D coil sensor open or short
• Compressor or electrical parts Continuously workiug
of compressor error.
2 times blink • Gas leak
0.5s
8s