This guide to “Contact and Corrections” separates documented facts from details that only your exact filter and equipment can confirm.
Email us
Contact 김민성 at vl-_-l@naver.com. The button opens your email program; it does not submit a message through this site.
Useful details to include
Share the page URL, manufacturer name, complete part number, cabinet model, source document link, and a description of the possible error. You can omit personal details that are not needed for the correction.
Product-fit questions
For a purchase or installation decision, use the equipment manufacturer’s current support channel or a qualified HVAC technician. We cannot inspect your unit by email.
Corrections we can investigate
A useful report names the exact sentence or table entry you question and includes the manufacturer document that supports a correction. We can then compare the source, date, product revision, and page wording. A photo of your personal equipment may help explain the issue, but avoid sending addresses, serial numbers, or other personal information unless it is genuinely needed.
We cannot diagnose an HVAC fault or confirm a replacement from a description alone. For urgent equipment problems, contact the system manufacturer or a qualified local professional.