Jandy JXi 260 260,000 BTU Pool Heater with High Efficiency and Digital Temperature Control GF Error Fix: Gas Fault

Error code GF on the Jandy JXi 260 260,000 BTU Pool Heater with High Efficiency and Digital Temperature Control means: Gas Fault. A gas supply or gas valve problem — the gas valve is not opening properly, gas pressure is outside the acceptable range, or gas supply has been interrupted; check that the gas meter is on and the supply valve to the heater is open; verify the gas valve is receiving the proper electrical signal from the control board; check gas pressure with a manometer (natural gas: 3.5 inches WC supply pressure, LP: 11 inches WC supply); this code typically requires professional service from a licensed pool heater technician or plumber

The most successful fix is "Test and Replace Gas Valve if Faulty" (hard difficulty, ~90 minutes). Estimated DIY cost: $20-$40. HomeMD has 2 community-ranked fixes for this error.

This error is rated medium severity. It should be addressed soon, but your appliance may still function in a limited capacity.

Yes — the top-ranked community fix ("Test and Replace Gas Valve if Faulty") is rated hard difficulty and takes about 90 minutes. Tools needed: Multimeter, Manometer, Adjustable wrench, Pipe thread sealant, Phillips screwdriver.

DIY cost: $20-$40. Professional repair typically costs $250-$400. Many homeowners save money by trying the top-ranked community fix first.

The Jandy JXi 260 260,000 BTU Pool Heater with High Efficiency and Digital Temperature Control has 8 other known error codes, including: AFS (Air Flow Switch Fault), AGS (Air/Gas Switch Fault), CE (Communication Error), CF (Combustion Fan Fault), FE (Flue Exhaust Fault), and 3 more.

Error code GF also appears on 1 other Jandy model: JXi 400,000 BTU Pool and Spa Heater with Digital Temperature Control. The fix may vary by model, so check each model's specific page for tailored repair steps.