Gas or Propane Furnace Maintenance
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A Note From the Owner:
Alpine Heating & Cooling is a service based company, fully licensed and insured for just that, we started as a
service orientated company not a construction company. A lot of HVAC construction companies subsidize their
income in the winter by doing routine maintenances on heating equipment. Your furnace can be a very
dangerous piece of equipment, please consider experience and qualifications when shopping for the best price.

Why A Professional Furnace Maintenance:
A furnace maintenance is not only a matter of efficient and trouble free operation but is also a matter of safety.
Improperly maintained gas furnaces can be a fire and or carbon monoxide hazard and can be a serious health
risk which can lead to a death. A properly serviced and safety checked gas furnace can give you safe and trouble
free operation for the lifetime of your heating equipment. However, cracks or openings in your systems heat
exchanger may leak carbon monoxide or allow flames which are normally contained inside to reach your living
space causing a very dangerous and life threatening condition. Malfunctioning safety controls can cause a
cracked heat exchanger or other dangerous conditions to occur. Do not take a chance with your family's safety
get your furnace maintained once a year by a properly trained and licensed service professional.

The winter is a very busy time for professional heating and cooling contractors. Having a professional inspection
and maintenance done on your furnace before the busy winter months will help keep your unit running and
prevent delays in its repair and also keep you safe from harmful gases and lower the danger of a fire.

A Maintenance Should Include The Following:
All points may not apply on all equipment.

  • A Carbon Monoxide test - The most important test of all. Carbon monoxide is an odorless tasteless gas
    that can be lethal in small doses. Professional inspection and maintenance of your furnace should
    include a thorough inspection of the heat exchanger which contains the flames and carbon monoxide
    gases produced by the unit. The inspection should include an in depth analysis of the Carbon Monoxide
    or CO content of the combustion chamber and an adjustment or repair if necessary. It should also
    include an analysis of the draft of the flue pipe which carries the gases out of the house. Analysis MUST
    be done with a Carbon Monoxide detector and other qualified equipment by a trained technician to insure
    safe operation.

  • Pull, inspect and clean the main burners.

  • Make burner adjustments.

  • Pull, inspect and clean the flame sensor.

  • Visual inspection of firing sequence.

  • Pull, inspect, and adjust the pilot assembly.

  • Pull and clean the thermocouple.

  • Visual inspection of the ignitor.

  • Check amp draw or OHMs of the ignitor.

  • Test the fan limit switch or switches.

  • Test the pressure switches.

  • Inspect pressure switch hoses.

  • Inspect and clean pressure port openings.

  • Inspect the electrical wiring and connections.

  • Inspect for gas leaks in and around unit.

  • Test the gas manifold pressure (gas only).


  • Test the fan motor and oil if needed.

  • Examine the draft diverter or housing.

  • Test thermostat for proper operation.

  • Adjust the heat anticipator if needed.

  • Check, replace and adjust the fan belts.

  • Check the temperature rise across the heat exchanger.

  • Check the motor voltages and the amp draws.

  • Lubricate the fan motors.

  • Replace or clean the air filter(s)

  • Cleaning the blower compartment.

  • Run and check sequence of operation.
Alpine heating and cooling has heat,heater,hybrid,heat pump,heating,tankless
We carry a wide variety of filter sizes and types,
what we do not have we can get the next day.
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maintaining all HVAC heating and cooling equipment. We
sell, install and service all our own equipment.
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Extensive Cleaning:
Even though cleaning the blower compartment is included in the maintenance, removing and cleaning the
blower housing and blower wheel is considered an extensive cleaning beyond the normal maintenance. In
some cases the existing venting and or combustion air system will need to be cut and removed to accomplish
this task. After a thorough inspection of the blower housing the technician will determine if the blower housing
and wheel shall be removed and cleaned. The cost will be determined by the difficulty of the task.
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Need a Heat Pump, Air Conditioner, Furnace, Boiler or Tankless Water Heater? I install them all over skagit county
including Mount Vernon Wa, Burlington Wa, Anacortes, Sedro Woolley, La Conner, Stanwood Wa, and on Camano Is.

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