Furnace shows E07, may indicate a problem with the gas valve modulation or current draw

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Shorted or open modulation coil, Incorrect gas valve wiring, Control board modulation driver fault, Wrong gas valve fitted

Safety: Turn off gas and power. Do not attempt internal gas valve repairs.

Check connector: Inspect the modulation coil connector on the gas valve. Ensure it is firmly attached and wires are not damaged.
Visual inspection: Look for signs of overheating or burning on the valve body or connector.

Gas valve and control board testing must be done by a qualified technician with proper equipment.

Professional Required 5/5

Modulating Gas Valve

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