Troubleshooting Guide
7) Troubleshooting CH23, CH28
Display
Title
code
DC Link
23
Low voltage.
DC Link
28
High voltage
184 Multi type Air Conditioner
Cause of error
• DC link volt. is
140Vdc .
• DC link volt. is
420Vdc .
V
Check point & Normal condition
• Check the power source.
• Check the components.
• Check the power source.
• Check the components.
Check Point
1. Check the power source.
2. Check the components
(B/Diode, Reactor, PSC Parts )