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Furnace Repair

HVAC Maintenance Checklist

- Modesto & Fresno

Maintain your furnace and air conditioner in Modesto & Fresno to prevent future problems and unwanted costs. Keep your cooling and heating system at peak performance by having Delta Tec do an annual pre-season check-ups. Contractors tend to get busy once summer and winter come, so it's best to check the cooling system in the spring and the heating system in the fall. To remember, you might plan the check-ups around the time changes in the spring and fall.


(559) 266-7788 / (209) 526-0755
20 POINT MAINTENANCE SERVICE
$68.00 for an Indoor Furnace
Or
$75.00 for a packaged unit 5-ton or less.


New Customers Only       Exp:November 15th and February 15th
Our Blue Ribbon Service includes:
  • ✔   A standard maintenance fee of just $72.00 per unit per visit.
  • ✔   A 2-hour response time during regular business hours
  • ✔   A 10% discount on all service parts purchased
  • ✔   And NO overtime charges for work that extends to 7P.M.
  • ✔   Monday through Friday.
    • Delta Tec
      (559) 266-7788 / (209) 526-0755

A typical maintenance check-up includes the following:

  • Check thermostat settings to ensure the cooling and heating system keeps you comfortable when you are home and saves energy while you are away.
  • Tighten all electrical connections and measure voltage and current on motors. Faulty electrical connections can cause unsafe operation of your system and reduce the life of major components.
  • Lubricate all moving parts. Parts that lack lubrication cause friction in motors and increases the amount of electricity you use.
  • Check and inspect the condensate drain in your central air conditioner, furnace and/or heat pump (when in cooling mode). A plugged drain can cause water damage in the house and affect indoor humidity levels.
  • Check controls of the system to ensure proper and safe operation. Check the starting cycle of the equipment to assure the system starts, operates, and shuts off properly.

Cooling Specific

  • Clean evaporator and condenser air conditioning coils. Dirty coils reduce the system's ability to cool your home and cause the system to run longer, increasing energy costs and reducing the life of the equipment.
  • Check your central air conditioner's refrigerant level and adjust if necessary. Too much or too little refrigerant will make your system less efficient increasing energy costs and reducing the life of the equipment.
  • Clean and adjust blower components to provide proper system airflow for greater comfort levels. Airflow problems can reduce your system's efficiency by up to 15 percent.

Heating Specific

  • Check all gas connections, gas pressure, burner combustion and heat exchanger. Improperly operating gas connections are a fire hazard and can contribute to health problems. A dirty burner or cracked heat exchanger causes improper burner operation. Either can cause the equipment to operate less safely and efficiently.

Actions To Do Yourself

  • ✔   Inspect, clean, or change air filters once a month in your central air conditioner, furnace, and/or heat pump. Your contractor can show you how to do this. A dirty filter can increase energy costs and damage your equipment, leading to early failure.

Call (559) 266-7788 / (209) 526-0755
or request service online.