A-1 Guaranteed is your #1 resource for air conditioner tune-ups and furnace tune-ups. Our comprehensive tune-ups handle every aspect of your air conditioning and 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 contractor 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.

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Awards & Certificates

  • Better Business Bureau Honor Roll Member for 21 Years Running
  • BPI Certified
  • Energy Upgrade Participating Contractor
  • Trane Award for Superior Installation and Service
  • Voted Best Heating/Cooling Company for 12 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