60
Room Air Conditioner
Part 4 Trouble Shooting
5) Troubleshooting CH23, CH28
V
23
28
DC Link
Low voltage.
DC Link
High voltage
• DC link volt. is
140VDC
.
• DC link volt. is
420VDC
.
• Check the power source.
• Check the components.
• Check the power source.
• Check the components.
Error
code
Title
Cause of error
Check point & Normal condition
Check Point
1. Check the power source.
2. Check the components
(B/Diode, Reactor, PSC Parts )