HVAC Repair Elk Grove Village IL | Call Illco

First, check your thermostat settings and ensure the furnace's power switch is on. If it's still not igniting, it's best to call Illco immediately, especially during our cold snaps. A failed ignition can be caused by a faulty igniter, flame sensor, or gas valve—issues that require a professional technician for safe, proper repair to prevent further damage or safety hazards.

Older boiler systems here often face issues like a failed circulator pump, low water pressure, or a malfunctioning pressure relief valve. These problems can lead to no heat or uneven heating. Illco's technicians specialize in diagnosing and repairing these precise failures. We carry common replacement parts and provide expert service to get your historic boiler system running reliably again.

Absolutely. Our precision tune-up service is designed for our local climate. We thoroughly clean critical components like the flame sensor and heat exchanger, check for carbon monoxide leaks, and test the ignition system. This proactive maintenance significantly reduces the risk of a sudden, cold-weather breakdown by catching small issues before they become major, costly repairs.