Atlantic Reduced Efficiency / Poor Combustion

Furnace runs but energy bills are unusually high and the unit cycles more often than expected.

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

Dirty burners, Incorrect gas pressure, Clogged heat exchanger surfaces, Faulty modulation control on Atlantic furnace

Safety: Combustion adjustments must be done by a qualified technician.

Steps (homeowner level):

Filter and vents: Replace filters and ensure vents are open to reduce runtime.
Thermostat settings: Verify that setpoints and schedules are reasonable and not excessively high.

Professional tasks: A technician should clean burners and heat exchanger, verify gas input rate, and check modulation or staging controls.

Hard 4/5

Burner Assembly

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