Troubleshooting Guide
46
Ceiling Cassette Air Conditioner
Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65
Ω
41
44
45
46
47
65
D-pipe sensor (Inverter)
Air sensor
Condenser Pipe sensor
Suction Pipe sensor
D-pipe sensor (Constant)
Heat sink sensor
• Open / Short
• Soldered poorly
• Internal circuit error
• Open / Short
• Soldered poorly
• Internal circuit error
• Open / Short
• Soldered poorly
• Internal circuit error
• Open / Short
• Soldered poorly
• Internal circuit error
• Open / Short
• Soldered poorly
• Internal circuit error
• Open / Short
• Soldered poorly
• Internal circuit error
• Normal resistor : 200K
Ω
/ at 25°C (Unplugged)
• Normal voltage : 4.5Vdc / at 25°C (plugged)
• Normal resistor : 10K
Ω
/ at 25°C (Unplugged)
• Normal voltage : 2.5Vdc / at 25°C (plugged)
• Normal resistor : 5K
Ω
/ at 25°C (Unplugged)
• Normal voltage : 2.5Vdc / at 25°C (plugged)
• Normal resistor : 5K
Ω
/ at 25°C (Unplugged)
• Normal voltage : 2.5Vdc / at 25°C (plugged)
• Normal resistor : 200K
Ω
/ at 25°C (Unplugged)
• Normal voltage : 4.5Vdc / at 25°C (plugged)
• Normal resistor : 10K
Ω
/ at 25°C (Unplugged)
• Normal voltage : 2.5Vdc / at 25°C (plugged)
Display
code
Title
Cause of error
Check point & Normal condition
Check Point
1. Estimate the resistance of each sensor.(Unplugged)
2. Estimate the voltage of each sensor.(Plugged)
3. If the resistance of the sensor is 0 k
Ω
or
∞
, then sensor is abnormal.
If the voltage of the sensor is 0 V or 5Vdc, then sensor is abnormal.
Содержание LC240CP
Страница 20: ...20 Ceiling Cassette Air Conditioner Wiring Diagrams 1 Indoor Unit LCN240CP Wiring Diagrams ...
Страница 21: ...Service Manual 21 Wiring Diagrams LCU240CP LCU380CP 2 Outdoor Unit ...
Страница 53: ...Electronic Control Device Service Manual 53 Electronic Control Device Ceiling Cassette Type Main P C B ASM ...
Страница 64: ...P No 3828A20911A Printed in Korea ...