A-1 Guaranteed is your #1 resource for air conditioner tune up and/OR  furnace tune up. Our comprehensive tune-ups handle every aspect of your air conditioning and/OR furnace units, all for just $159.00. View tune-up details below and contact us today at (707) 645-0734 for more information.

Air Conditioner Tune Up Includes:

  • Fire off Air Conditioner unit and (if applicable) furnace to verify operation.
  • Replace and/or clean filter.
  • Replace thermostat batteries and correct time/day.
  • Check amperage draws on compressor.
  • Check amperage draws on outdoor fan motor.
  • Record refrigerant pressures – high and low sides.
  • Record superheat of the refrigerant circuit to verify proper charge.
  • Record sub cool of the refrigerant circuit to verify proper charge.
  • Record indoor temperature difference.
  • Check contactor for excessive pitting, arching, or scorching.
  • Check capacitor(s) to confirm if they are in-range.
  • Check and tighten wiring connections in outdoor unit.
  • Clean service access panel in outdoor unit.
  • Lightly clean debris from in/around unit (significant accumulation requires full maintenance).
  • Reapply power to the unit to check in-rush amperage draw upon startup.
  • Rinse out condensing coil (chemical cleaning requires full maintenance).

Furnace Tune Up Includes:

  • Fire off furnace and (if applicable) Air Conditioner to verify operation.
  • Replace and/or clean filter.
  • Replace thermostat batteries and/or correct time/day.
  • Clear out pressure switch port.
  • Check amperage draws on Indoor Blower Motor.
  • Check amperage draws on Induced Draft Motor (if applicable).
  • Check capacitor(s) to confirm if they are in-range.
  • Measure resistance on hot surface igniter (if applicable).
  • Record indoor temperature difference.
  • Light cleaning on exterior & interior of unit (detailed cleaning required full maintenance).
  • Check and tighten all wiring connections on indoor unit.
  • Blow out and treat condensation lines (if accessible).
  • Verify no “burnt” marks on front or back of circuit board.

A-1 Guaranteed is your #1 resource for air conditioner tune up and/OR  furnace tune up. Our comprehensive tune-ups handle every aspect of your air conditioning and/OR furnace units, all for just $159.00. View tune-up details below and contact us today at (707) 645-0734 for more information.

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    Awards & Certificates

    • Better Business Bureau Honor Roll Member for 24 Years Running
    • BPI Certified
    • Energy Upgrade Participating Contractor
    • Trane Award for Superior Installation and Service
    • Voted Best Heating/Cooling Company for 16 years by Readers of The Vallejo Times Herald
    • Vallejo Schools V.I.P. Award for Partners in Education
    • Vallejo Little League for Support and Generosity
    • Bay Area Certified Green Business
    • Employee Support of the Guard & Reserve by Office of the Secretary of Defense
    • Energy Efficiency Award by Energy Upgrade California

    Memberships

    • Chambers of Commerce: State of California, City of Vallejo, and City of American Canyon
    • League of California Homeowners
    • Electric & Gas Industries Association
    • Air Conditioning Contractors of America
    • Napa-Solano Builders Exchange
    • Better Business Bureau
    • Safety Services Company
    • NATE Certified
    • EGIA Approved Contractor
    • Diamond Certified
    • A-1 Guaranteed Heating & Air Conditioning
      1768 Broadway St. Vallejo, CA 94589