LG THERMA V HN0916T Installation Manual page 175

Display
Title
code
Heat sink Temp,
62
High error
Problem in Heatsink
65
Temperature sensor
67 Fan lock error
Problem in Vapor
114 injection inlet
temperature sensor
Cause of error
Heat sink sensor detected high
temp.(85 °C)
Abnormal value of
sensor(Open/Short)
Fan RPM is less than 10 for 5
seconds from start-up operation.
Fan RPM is less than 40 in operation
except for start-up operation
• Open (Below -48.7 °C)/ Short(Over
96.2 °C)
• Soldered poorly
• Internal circuit error
COMMISSIONING
Check point & Normal condition
1. Part no. : EBR37798101~09
- Check the heatsink sensor: 10 k / at
25 °C(Unplugged)
- Check the outdoor fan is driving rightly
2. Part no. : EBR37798112~21
- Check the soldered condition in the 22,23 pin of IPM,
PFCM
- Check the screw torque of IPM, PFCM
- Check the spreadable condition of thermal grease on
IPM, PFCM
- Check the outdoor fan is driving rightly
• Check if there is defect of thermistor connector
(Open/Short)
• Check defect of outdoor PCB(Inverter)
1. Fan motor damage.
2. Assembly condition abnormal.
3. Jammed fan by surroundings.
1. Bad connection of thermistor connector
2. Defect of thermistor connector (Open/Short)
3. Defect of outdoor PCB(Outdoor)
175