GP Systems

309.579.3650 | 2020 E. Wilkins Dr., Chillicothe, IL 61523 |

Carrier Factory Authorized Dealer


  • Write smaller checks to the utility company
  • No overtime charges
  • Priority service status
  • Automatic notification of service visits
  • 15% discount on repairs
  • 10% discount on Indoor Air Quality Products
  • Special pricing on new equipment installation
  • Peace of Mind
  • Extended equipment life
  • Recurring monthly billing
  • Automatic renewal
  • Maximum equipment efficiency
  • Written condition report
  • Agreement is transferable


Why it’s Important to Have Routine Planned Maintenance

Your HVAC system requires routine monitoring, adjustments, periodic cleaning, and eventual replacement of components. Regularly scheduled inspections and maintenance are often required to maintain the original equipment manufacturer’s (OEM) warranty. Conducting regularly scheduled inspections, maintenance, and remediation of HVAC systems prolongs equipment efficiency, promotes healthy clean air, supports lower utility costs, guards against unexpected failures, and prolongs equipment life. A maintenance inspection seeks to identify deficiencies that degrade or impair the HVAC system, including its components and we are able to recommend actions to correct these deficiencies.

Not all HVAC companies take the same approach for inspecting and maintaining HVAC systems. There are many types and intensity levels of “seasonal tune-ups”, “clean and checks”, and “maintenance visits”. At GP Systems we strive to provide you with the highest quality professional maintenance service available. Our technicians are fully acquainted with the proper operation of the systems they are working on, including their components.


The following are the responsibilities and elements for a proper planned maintenance routine:

  • Clean and or replace air filters
  • Check auxiliary heat
  • Clean condensation drain/pump/traps
  • Check defrost control
  • Remove leaves/debris from outdoor unit
  • Clean and inspect indoor coil and drain pan
  • Remove and clean blower assembly as needed
  • Inspect heat exchanger
  • Measure motor amperage
  • Check for proper refrigerant charge
  • Inspect for refrigerant leaks
  • Check safety control
  • Check thermostat for proper operation
  • Measure operating temperature
  • Inspect ductwork
  • Test system during startup and running
  • Check safety controls
  • Measure for proper airflow
  • Inspect and test safety devices
  • Lubricate motor and bearings as necessary
  • Inspect, tighten, and test all electrical connections and terminals
  • Make necessary recommendations


Click below to print a coupon!
$25 Off System Repair




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