Ch 73 Error ((better)) | Lg

There are several reasons that can cause the LG CH 73 error. Some of the most common causes include:

Ensure the power is completely off before inspecting any wiring. lg ch 73 error

However, if you have attempted the steps above and the error persists, do not continue to run the system. Repeated power-cycling attempts can sometimes cascade into a full PCB failure. At that point, professional diagnostics are required. There are several reasons that can cause the LG CH 73 error