The control detects an open igniter circuit. The igniter or its wiring may need professional testing or replacement.
Professional Required
Ignitor open
Furnace fails to operate; LED displays EEn
Ignitor circuit open due to disconnected or damaged ignitor or wiring
Have a technician inspect the igniter circuit and connections with power isolated. Do not touch or test energized ignition components.
Ignitor, ignitor wiring
Contact a qualified HVAC technician for diagnosis and repair; do not bypass safety devices or attempt internal gas or electrical repairs.
If you smell gas, leave the area and contact your gas utility or emergency services from a safe location. Never bypass safety controls. Internal furnace servicing should be performed by qualified personnel.
Learn more about the furnace components and operating conditions commonly associated with diagnostic error codes: