Check Point - LG THERMA V AHNW16606B0 Service Manual

Check Point

1. Check the power source.(230V ±15%)
2. Check the fan operation is right.
3. Check the current.
4. Check the install condition.
5. Check the CT Sensor Output signal
(AHUW096A3 - Check output the CT Sensor : DC 2.5±0.2V
AHUW146A2/AHUW126A3/AHUW146A3/AHUW166A3 - Check output pin 2.3 of the CT Sensor : DC 2.5±0.2V
AHUW128A3/AHUW148A3/AHUW168A3 - Check input_current_T_PFC and R_PFC of the CT sensor : DC 2.5±0.2V)
▶AHUW096A3
▶ AHUW146A2/AHUW126A3/AHUW146A3/AHUW166A3
< Inverter PCB>
IN/I
Red
<CT Sensing Check Point>
1
2
3
<CT Sensing Check Point>
- 46 -
GND
Vdc
Black