Why Furnace Repair is Not a DIY Project

Why You Should Leave Furnace Repair to the Experts

Many homeowners are pleased to do small jobs around the house but would not consider tackling projects outside their comfort zone. Other homeowners have a pioneering spirit and a penchant for frugality. They consider new challenges exciting. With a host of tutorial videos and several chains of home improvement centers, their independent, do-it-yourself attitude can push the limits.

Some home improvement projects should be left to professionals and making furnace repairs falls into this category.

Home furnaces are an integral building system that keeps the family comfortable, healthy, and safe. The components are complex, and may include:

  • Electrical sensors and controls
  • Refrigerant gas technology, the same gas used during the cooling season, and
  • Natural gas

There are a multitude of manufacturers, with several generations of innovation, so the chances of finding the right tutorial and the corresponding part for specific repairs are quite slim. So many things can go wrong . . .

Potential Electrical Hazards

The wiring that sends messages between the thermostat and furnace components carries 14 volts. The wiring that activates the heating element carries 220 volts. Other wires carry 120 volts. Someone accidentally contacting any of these wires will be shocked, but one better know the difference, since the resulting shock will be very different.

Accidentally crossing the wires can also develop a fire hazard. There is no substitute for proper training and experience when repairing furnaces.

Potential Gas Hazards

Being prepared to repair any furnace on the market requires familiarity with at least three gases, and rarely will homeowners have the necessary training to handle all three.

  • Some furnace units use a heat pump component, which utilizes the same refrigerant gas (commonly referred to as Freon) as the air conditioning process. The air conditioning process is reversed, bringing heat from the outside indoors.
  • Some units use natural gas or propane as fuel to warm a home. Service requires knowledge of gas supply and there can be no mistakes with these explosive gases. A leak is serious, potentially leading to asphyxiation and an explosive fire.
  • The burners for gas furnaces need careful cleaning and inspection. The ignition source and mixture with oxygen must be precise and getting it right can be extremely frustrating.
  • Don’t forget the exhaust from burning natural gas. This gas enters a heat exchange chamber, and the radiant heat warms the air which eventually warms the home.

A portion of the exhaust is steam which causes rust to form on the walls of the heat exchanger; the heat exchanger must be inspected regularly. If the exhaust leaks into the home, the colorless, odorless carbon monoxide will asphyxiate occupants.

A video tutorial cannot cover the vocational furnace repair training and years of experience. Call a professional technician to service and repair your furnace this heating season.

Leave Furnace Repair to the Experts!

Schedule your furnace repair consultation by calling All Cool AC & Heating at 281-238-9292 or contact us via email and let our NATE-certified HVAC maintenance and furnace repair technicians put their experience to work for you.