# Affiliate Disclosure
**Last Updated:** November 2026
In compliance with the Federal Trade Commission (FTC) guidelines, please note that **HomeUnitGuide** (`https://homeunitguide.com/`) participates in various affiliate marketing programs, including the **Amazon Services LLC Associates Program**, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com and affiliated sites.
## How Affiliate Links Work
Some of the links to replacement parts, diagnostic tools (such as multimeters), water filters, and maintenance supplies within our articles are affiliate links. If you click on one of these links and make a purchase, HomeUnitGuide may earn a small commission **at no additional cost to you**.
## Our Commitment to You
* **Zero Extra Cost:** The price you pay for any part or tool is identical whether you use our link or visit the retailer directly.
* **Unbiased Recommendations:** We only link to tools and replacement parts that directly correspond to the repair steps discussed in the article.
* **Funding Free Content:** Affiliate commissions and display advertising (such as Google AdSense) allow us to keep all troubleshooting guides free and accessible to homeowners without paywalls.