What does the exception mean nationally?
Effective September 1, 2026, the temporary National Electrical Code exception for listed outdoor HVAC equipment expired. Under NEC Section 210.8(F), outdoor outlets serving dwelling units must now have ground-fault circuit-interrupter (GFCI) protection when supplied by a single-phase branch circuit rated 150 volts or less to ground and 50 amperes or less.
Because the NEC uses the word “outlet,” the requirement includes hardwired equipment, not merely receptacles, and therefore covers many residential air conditioners, heat pumps and mini-split systems operating at 240 volts. Eaton explains the scope of NEC 210.8(F)
How does this impact Florida?
Florida is taking a different approach. Section E3408.1 of the Ninth Edition (2026) Florida Building Code – Residential governs outdoor outlets. Exception No. 2 states: “GFCI protection shall not be required for listed HVAC equipment.” ICC Digital Codes 2026 Florida Building Code, Residential, Ninth Edition.
Unlike the temporary NEC exception, the Florida provision does not contain a September 1, 2026 expiration date.
Three things Florida contractors should consider:
- The Ninth Edition takes effect on December 31, 2026. Contractors should consult their local building department regarding requirements during the transition to the Ninth Edition.
- The exemption applies to “listed HVAC equipment,” not automatically to every outdoor electrical load.
- E3408.1 is in the Florida Building Code – Residential. Contractors should still confirm how the local authority applies the residential provision, the adopted NEC and any requirements affecting installations outside the Residential Code’s scope.
How did we get here?
The September 1, 2026 deadline was established years in advance. Nevertheless, the electrical and HVAC industries did not complete the testing, product development and distribution needed to ensure that compatible GFCIs would be available in sufficient quantities across all major panel families and amperages.
Concerns also remain about unwanted tripping, particularly with inverter-driven and variable-speed equipment. In effect, the national compliance deadline arrived before the entire compliance infrastructure was ready. Florida’s new residential-code exception avoids imposing that requirement on listed HVAC equipment while those compatibility and availability questions remain unresolved.
What should contractors Do?
Contact your local building department inspectors for clarification on the gap between September 1 and December 31, 2026 and what documentation is needed when GFCIs are installed.
Ask your equipment manufacturer or distributor:
- Which GFCI devices have been tested and approved with each inverter product family?
- Will they provide written compatibility charts?
- Does the company guarantee operation when an approved GFCI is used?
- How should you document and handle unwanted tripping?
- Will the manufacturer cover diagnostic labor or callbacks involving an approved installation?
Warm regards,
Peter Montana
Owner & Managing Director, ACprosite
pmontana@acprosite.com
