HVAC System

Air Conditioning

Our AC coverage is for the main source of air conditioning to the home, so it covers residential units up to 5-ton capacity and below 21 SEER. Our Platinum and Gold plans cover up to two AC units, so larger homes with multiple systems will have both units covered.


The compressor is often called the heart of the cooling system. The compressor pulls gas refrigerant from the interior unit and compresses it, concentrating the heat that is already present in the gas. It sends this hot gas through the finned condenser coils in the outdoor unit, where the heat from the gas dissipates into the outside air, which is cooler than the gas, even on a hot day.. This is how heat is removed from the home.
Capacitors send a jolt of electricity to start motors, or in the case of “run” capacitors, they send periodic jolts to keep the motor running. Compressors need a capacitor to function correctly.
Dual capacitors provide electricity to two different motors (Ex: compressor and fan motor).
The blower motor powers the fan which moves air throughout the ducts in the home.
The main control board is an electronic circuit board that controls all of the major electronic functions of the HVAC system. Without it, the different mechanical components would not function together to make the system fulfill its purpose.
The evaporator coil removes heat from the air in your home. Refrigerant gas moves through the coil, and as warm air passes over the coils, heat exchange takes place—the heat from the air is transferred into the refrigerant, which then carries the heat outside to the condenser unit.
The condenser unit releases heat from the refrigerant into the outside air, and the condenser coil is central to the process. The fan moves air across the coil, and as the hot refrigerant gas moves through the coil, it transfers heat to the surrounding air.
The transformer raises or lowers the voltage of electricity to meet the demand of different parts of the system such as the thermostat or blower motor.
The timer is actually a master thermostat for an evaporative cooler (aka swamp cooler).
The fan control is a circuit board that controls the function of either of the fan motors.
Bearings facilitate the motion of moving parts on the compressor and motors.
This pump is part of an evaporative cooler, also know as a swamp cooler. A fluid pump does just what you’d think it does: it pumps fluid.
Fuses protect the system against spikes in electrical current.
The relays manage the flow of high-voltage electricity in the system, controlling when the cooling system turns on and off.
Semi conductors are part of the electrical components of an evaporative cooling system, such as a swamp cooler.
On some HVAC systems, electrodes form part of the igniter system.
This refers to any electronic circuit board that is part of the main HVAC system.
Rectifiers convert AC electrical currents to DC.
This is a fail-safe to defrost HVAC system components in case they get too cold. This prevents damage to the system.
AFC covers up to $25 per pound when refrigerant needs to be recharged, with a maximum limit of ten pounds.

Not Covered

Our coverage only covers ducted systems for a few reasons:
  1. Repair technicians are hard to find—many techs will not work on window units. They are often not worth repair and must simply be replaced.
  2. They are generally not the main source of cooling to the home.
  3. They are inexpensive and easy to replace yourself.
Systems that are oversized or undersized for your home do not operate as intended and experience increased wear and tear, leading to premature failure. In addition, oversized units often get stuck short-cycling, meaning that they do not run long enough cycles to maintain the right humidity in the home.
This refers to air conditioning systems with a mismatched condensing unit and evaporator coil. Any licensed HVAC technician will recommend against installing or running a mismatched system. These systems have less efficiency and longevity.
Chillers are featured almost exclusively in large commercial cooling systems, not in residential HVAC systems.
Water towers are usually part of large commercial cooling systems and are not a common feature of residential HVAC systems.
AFC Home Club is here to cover the cost of parts and the HVAC technician’s labor. If a crane must be rented to install a new condenser unit on a roof, that job is performed by a crane operator, not an HVAC technician.
Leak searches are exploratory work that is separate from the repair process.
Maintenance is the homeowner’s responsibility. No coverage can replace preventative measures, and having a warranty does not mean that homeowners do not have to care for their appliances and systems. Learn more about the benefits of HVAC maintenance here.
Valves are mostly used for servicing and diagnosing unit and should be replaced if they fail during maintenance. They don’t fail mechanically and are cheap to replace. Parts can usually be ordered easily through our parts supplier Encompass.
Just like drain-line stoppages and noise, Water leaks can be easily prevented by routine maintenance. Leaking water is simply condensation that is not draining properly or that has frozen and thawed. Changing filters regularly and having annual maintenance can completely eliminate these issues.
Drain lines coming from an HVAC system should only contain water, so if these lines are clogged by algae or dirt, it’s a sign of improper installation or lack of maintenance. Unclogging these stoppages is generally cheaper than the cost of a service fee, and it’s easy to do yourself.
While a noisy air conditioner is not ideal, it’s an issue that is easily addressed by routine maintenance. During maintenance, technicians will lubricate and clean parts, minimizing or eliminating unnecessary noises.
Filters are made to be cleaned or replaced regularly and contain no moving or mechanical parts. Filters can be ordered easily through Encompass, our parts supplier.
Condenser casings are simply the physical case that guards the outdoor condenser unit. It has no moving parts and only fails due to damage from wind, rust, or falling limbs.
The refrigerant lines are pipes that carry gas and liquid refrigerant between the exterior condensing unit and the interior unit. These lines have no mechanical parts and only fail due to damage.
Refrigerant conversion is the process of retrofitting your HVAC system to accept a new refrigerant. Conversions are becoming more popular as the remaining supplies of R-22 refrigerant decrease due to the EPA’s mandated phase-out of R-22.
Recapture is only done when removing refrigerant from the unit. This is done during refrigerant conversion or during the replacement of an AC unit. The old refrigerant must be safely stored because of its harmful environmental effects.
Please note that hard-start kits that are built into the original unit as part of the system are covered. However, Aftermarket hard start kits are installed because of a previous failure, and in the sense they are more like a Band-aid for the system than a part of the system.
Humidifiers are a separate appliance that is not found in every home. Whole house humidifiers that are used in conjunction with a heat pump or furnace can actually reduce the life of the furnace.
Condensate pumps are located at the end of the condensate drain lines coming from your HVAC system. They generally cost less than the cost of our cheapest service fee, take no expertise to install, and are a separate appliance from your heating or air conditioning units.
These are not part of the HVAC system and are simple parts used to mount parts of the system. They do not consist of any moving parts and only fail due to rust, old age, or improper installation.
These are simply the pads that go under the HVAC unit. They do consist of moving parts and shouldn’t fail unless improperly installed.

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