Forensic Investigation of an Electrical Fault

An interesting aspect of investigating a known cause of an electrical failure or malfunction is defining the resulting damage.  When an electrical element within a dedicated component sustains damage and must be replaced, is it necessary to replace the complete component or just the damaged element?  The issues of warrantee, extended business interruption and interpretation of  like kind and quality all must be considered.

I am currently investigating an electrical component failure which may not be CSA or ULC certified.  The cause of the failure is known but is the extent of damage appropriate if the component is not certified.   In this particular matter, time and detailed research will tell.