Cold Wave, Inc. Heating and Cooling Service can inspect all makes and models of gas furnace equipment. When we check your system, a thorough 28-point checklist is performed to determine any possible problems. [download-attachment id=”243″ title=”Gas Furnace Checkup List PDF Download”]

Inside the house

  1. Thermostat calibration and tightness to the wall
  2. Filter for proper size and cleanliness
  3. Fan relay by cycling thermostat fan switch

On the equipment

  1. Duct elbow seal for leaks
  2. Condition of electrical conduit
  3. Electrical disconnect block, block contacts and fuses
  4. Bearing play on blower motor (add lubricating oil when necessary)
  5. Blower wheel for cleanliness
  6. Condition of blower belt and adjust tension (where applicable)
  7. Evaporative coils for cleanliness (if possible)
  8. Electrical connections for tightness
  9. Barometric damper for proper operation (if evaporative cooler is installed)
  10. Gas leaks, gas piping, flexible
    , and cock valve
  11. Adequate combustion air

While the equipment is running

  1. Flame color, roll-out, or delayed ignition
  2. Flue pipe venting and vent cap
  3. Equipment noise or excessive vibration
  4. High temperature limit safety control
  5. Carbon monoxide output levels
  6. Carbon monoxide static test
  7. Relay coil noise
  8. Fan temperature control
  9. Air temperature rise
  10. Amperage draws on blower motor
  11. Gas pressure
  12. Gas valve manifold by cycling on and off
  13. Test combustion air switch
  14. Air temperature rise

Schedule Your Checkup Today

Call (602) 978-1814 or submit our contact form.