RepairPal Certified shops can diagnose and repair your 2006 Hyundai Santa Fe. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.
This could be a short, bad compressor, relay, etc. You or a tech will need to perform some electrical testing to determine the cause.
If you need to find a good shop near you then use this link.
https://repairpal.com/repair-shops
Alex