Tappan Marginal Ignition System Performance

Furnace occasionally fails to ignite on very cold days but works at other times.

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

Weak hot surface ignitor on Tappan furnace, borderline gas pressure, stiff inducer or blower motor at low temperatures

Safety: Turn off power and gas before inspecting ignition components.

Steps:

Inspect the hot surface ignitor for hairline cracks or white spots. Replace if any damage is visible or if it is several years old.
Clean the flame sensor and burners to ensure reliable flame detection and carryover.
Have a technician check gas pressure and motor amperage under cold conditions.

Medium 3/5

Hot Surface Ignitor

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