ASI's A Common Issue is Poor Grounding on all HVAC Equipment
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Common Issue with Gas Furnaces can cost hundreds in repairs
All modern gas furnaces have electronic control boards, these are essentially simple computers with relays that controls the sequencing and monitor the operation for safety issues. These circuit boards can cost hundreds of dollars just for the board and they fail much more often than people think.Like all electronics there is one critical component that protects the board from voltage surges and static electricity which can and very often causes the board to fail if this component is faulty or missing. This critical component is much more simple and basic than you would expect, it is the grounding or ground wires.
Ground wires are found both at the high voltage electrical supply to the furnace and inside the furnace itself and all forms of grounds are very important to safe guard the system. Many furnaces are installed and never properly grounded at the high voltage source to begin with.
Other issues arise after several years if operation when a ground is attached to a hot surface which is much more common than you may think. In these cases the heat breaks down the contact or solder-less terminal causing the ground to fail. These can usually be found on the inducer fan motor where the ground is connected to a mounting bolt for the inducer fan and this mounting bolt gets very hot while in operation.
For the "Do It Yourselfer" and HVAC technicians alike it is a good idea to inspect these grounds and make sure that they are in fact intact, have a good ground surface and are tight.
SAFETY FIRST!
These easy to understand HVAC maintenance tips are for common tasks that
almost any homeowner can perform. Please do not perform these tips if
you are not comfortable performing
them. Electricity is dangerous and can cause serious injury or death,
always assume electrical power is on unless you have checked it with an
appropriate electrical meter. Understanding Electrical Circuits and Standard Household Voltages Heating and Air Conditioning Equipment have many moving parts such as fans and other devices, Always stay clear of fans and other moving parts as they can start at any time. Many electrical heating equipment operate at high voltages. All gas equipment and many other types operate using either natural or propane gas or fuel oil, always use extreme caution when working with flammable sources. It is always required to secure the power and gas or oil off to any equipment or appliance before performing service or repairs. Ameri-Serv, Inc. assumes no liability for
the use of the information provided on this website. Please always use common sense and make sure the electrical power is off before opening and accessing the inside of any equipment or appliance. Reaching into anything with electrical or moving parts can result is serious injury. Remember Safety is Always First
ASI's HVAC and Home Improvement Articles Green Technologies in our Homes... Radiant Barriers One of the latest green concepts is very controversial and many people have different opinions about the advantages and disadvantages. While the energy savings it can provide are very good the down side is that it could lead to problems. Green Technologies in our Homes - The "Green" Living Wall The idea of a living wall or green facade is as old as architecture itself, prominent in Europe and many other countries around the world. Everyone has seen buildings and homes covered in ivy and while this is literally a living wall, it is apparent that the motivation to allow the ivy to grow was not energy The Geo-Thermal System Explained in a Nut Shell Geothermal is by far the highest efficiency heating and cooling system available today. While the systems require up to three times more investment upfront than a conventional heating and cooling system... Ameri-Serv, Inc. Heating and Cooling News Ameri-Serv Inc Helping the Treasure Valley Community Ameri-Serv, Inc. Heating and Cooling has successfully helped dozens of Treasure Valley Families with thousands of dollars worth of free maintenance services and repairs through this holiday... |
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ASI's Heating Related Articles
  If
your Gas Furnace is an older gas furnace (usually 10 plus years old) it
may have a standing pilot light like a water heater, if this is the
case carefully follow the instructions on the furnace to light the
pilot. Some models have an intermittent pilot light or spark ignition
and you can usually hear the the system try to light the pilot flame
with a spark .. |
  Maintaining
your gas heating furnace system is important both to help make the
system last longer and to help keep the operating costs as low as
possible. All furnaces should be cleaned and inspected annually and
there are some things you can do yourself to save money but everyone
should call a qualified technician to inspect the system every fall as
well as to make any necessary repairs. |
  The
first thing that must happen is that the control thermostat must
provide a voltage signal to the furnace heating unit. The thermostat can
be most understood as simply a switch that turns a low voltage 24 volt
power on and off to the respective terminals. In the case of the
thermostat calling for heat the thermostat switches on the .. |
  Homeowners
can help prevent failure of their oil or gas furnace heat exchanger by
simply maintaining their system regularly. This includes having an
annual inspection of the system which should always including cleaning
of the blower and cabinet. More importantly the homeowner needs to make
sure that they maintain and clean or change their system air filters |
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