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Furnace Maintenance in Crystal Lake, IL

Annual maintenance for your furnace is key to longevity and optimal performance. Our tune-up checklist includes 20 different steps to ensure a thorough and comprehensive assessment. Benefits of Routine Maintenance:

  • Increase efficiency, reduce energy loss
  • Avoid unexpected breakdowns
  • Ensure safety for you and your family

We're invested in the health and longevity of your home comfort systems. Let us provide the necessary improvements each and every year.

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Hand It Off to Althoff.

Althoff Industries Furnace Tune-Up Guide

Furnace Maintenance
  • Verify accuracy and proper operation of the thermostat
  • General observation of all venting and ductwork
  • Measure ductwork system static pressures and evaluate them against benchmark levels
  • Perform combustion analysis on the furnace to ensure safe and proper combustion
  • Measure and verify proper temperature change at the system
  • Take amp draws of the blower motor
  • Take amp draws of the inducer motor
  • Check blower motor capacitor for proper microfarad level
  • Observe condition and balance of the blower motor wheel
  • Clear condensate drain and ensure proper operation
  • Remove and clean the flame sensor
  • Perform a visual inspection of the burners. If the carbon monoxide levels dictate, pull and clean them also
  • Perform a visual inspection on the heat exchanger
  • Take an ohm reading on the hot surface igniter
  • Remove and clean the pilot assembly
  • If applicable, replace the thermocouple
  • Clean condensate trap for high efficiency furnaces
  • Vacuum the inside of the furnace cabinet
  • Check and tighten all electrical connections
  • Replace fiberglass filter

*All inspections include a service report with a prioritized list of recommendations. Our goal is to leave the system working safely and more reliably but also improving performance.

Looking for routine maintenance made easy?

We offer a comprehensive maintenance program to make routine maintenance easy and cost-effective. We’ve also thrown in some great perks!

Perks of Our Membership Plans:

  • 1 spring cooling system tune-up and 1 fall heating system tune-up.
  • up to 20% Discount on HVAC, Plumbing & Electrical Repairs!
  • up to $400 in equipment purchase credits.
  • No overtime repair charge.
  • Priority service.

Learn More About Our Membership Plans

Let’s get your project started today!

We offer whole-home solutions, not just quick fixes.

Members pay less