Dear Panuwat,
Please find attached CAR / PAR report after the site visit by Matco Thailand.
As the ingress of water is through the temporary transit plugs, we believe that there is inadequate protection from rain falls or spray jetting of water during cleaning at your site.
AS reviewed to the root cause, this is deemed to be not under warranty.
However, out of goodwill based on long term business relationship, Matco will absorb the purchase cost of the terminal plate assembly and deliver to your side. Considering the large qty, it is a big cost to us.
But on one note that CUEL has to assist to deploy CUEL manpower resource to perform the change out / replacement of the oxidized stains terminal plate assembly and additionally, to clean off the rusty stains on the internal of enclosure with light sand paper which the junction box vendor has advised.
At the moment, we are expediting with our junction box vendor for better lead time, which may come close to 2 weeks ex-factory by air from USA.
We shall revert to you again on this arrival of these terminal plate assembly once we have the update by this week.
For this replacement of terminal plate assembly, it can be easily done by your site personnel.
Hope that the above clarify and thank you.