Voiding Your Furnace Warranty Costs Thousands When the Five Thousand Dollar Rule Applies

https://blogfreely.net/lithilszxt/h1-b-three-ton-units-cool-30-000-to-36-000-square-feet-when-equipment-age

The $5,000 rule for furnaces is a manufacturer threshold that determines warranty coverage eligibility: repairs exceeding $5,000 may void your coverage if the system wasn't serviced by a licensed, authorized technician